Gebruiksaanwijzing /service van het product iPAQ Internet Device van de fabrikant Compaq
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Technical Refe renc e Guide For t he Compaq iPAQ Internet Device.
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Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 i NOT ICE The inf o rmation in th is do cume nt is s ub j ec t to c han ge w ithou t notic e .
Tech nical Refer ence Gu ide Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion –- Mar ch 2000 ii.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 iii TABLE O F CO NTEN TS CHAPTER 1 INTRO DUCTIO N .....................................................................................................
Tech nical Refer ence Gu ide Compaq iPAQ F amily of Internet Dev ice s F irst Edit ion – - Mar ch 2000 iv CHA PTE R 4 SYS TEM SU P PO RT......................................................................................................... 4.1 IN TRO DU CTI ON.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 v 5.7 U NIV ER SA L SE R IA L B U S I NTER FA CE ........................................................................... 5-2 2 5.7.1 U SB DA TA FO R MATS .
Tech nical Refer ence Gu ide Compaq iPAQ F amily of Internet Dev ice s F irst Edit ion – - Mar ch 2000 vi CHA PTE R 8 BIOS R OM ....................................................................................................................... 8.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 vi i APPENDIX B ASCII CH ARACTE R SET ............................................................................................. B .1 IN TR ODU CTIO N.
Tech nical Refer ence Gu ide Compaq iPAQ F amily of Internet Dev ice s F irst Edit ion – - Mar ch 2000 v iii LIST OF FIGURES F IGU RE 2 – 1 . C OMP AQ I PAQ I NTERNET D EV ICE WIT H M ONITOR ........................................................
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 ix F IGU RE C – 1 . K EYSTROKE P ROCESS ING E LEMENT S , B LOCK D IA GRAM ....................................................C -2 F IGU RE C – 2. PS/2 K EYBOARD -T O -S YS TEM T RA NSM ISS ION , T IMING D IAGRA M .
Tech nical Refer ence Gu ide Compaq iPAQ F amily of Internet Dev ice s F irst Edit ion – - Mar ch 2000 x LIST O F TABLES T ABLE 1 – 1 . A CRONYM S A ND A BBREV IATIONS ...............................................................................
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 xi T ABLE 5 – 19. AC ’ 97 A UDI O C ONT RO LLER PCI C ONFIGURA TION R EGIST ERS ........................................ 5-3 0 T ABLE 5 – 20. AC ’ 97 A UDI O C ODEC C ONTROL R EG ISTERS .
Tech nical Refer ence Gu ide Compaq iPAQ F amily of Internet Dev ice s F irst Edit ion – - Mar ch 2000 xii.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 1-1 Chapter 1 INTRODUCTION 1. Chap ter 1 INTRODUCT ION 1.1 ABOUT T HIS GUI DE This guid e p rov ides tec h n ical inf o rmation ab o ut the C o mpaq iP AQ Family o f Internet D ev ice s.
Chapter 1 Introducti on Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion – M arch 2000 1-2 1 . 3 N O TA TI ON A L C O N V E N TI ON S 1.3.1 VA LUES H e xade c imal v alue s are indic ated b y a n ume rical o r alpha-n ume rical v alue f o llo w ed b y the le tter “ h.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 1-3 1.4 COMMON A CRONYMS AND A BBREVI ATIONS Tab le 1 -1 lis ts the acro ny ms and abb r ev iations u se d in this guid e. Table 1–1. Acro ny ms and Ab b rev iations Tab le 1- 1.
Chapter 1 Introducti on Compaq iPAQ F amily of Internet Dev ice s F irst Edit ion – Marc h 2000 1-4 Tab le 1- 1. A crony ms and A bbreviat ions Continued Acro nym/Ab breviat ion D escript ion DIMM d.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 1-5 Tab le 1- 1. A crony ms and A bbreviat ions Continued Acro nym/Ab breviat ion D escript ion l.
Chapter 1 Introducti on Compaq iPAQ F amily of Internet Dev ice s F irst Edit ion – Marc h 2000 1-6.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 1-7 Tab le 1- 1. A crony ms and A bbreviat ions Continued Acro nym/Ab breviat ion D escript ion S.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-1 Chapter 2 SYST EM OVERVIEW 2. Cha pt er 2 SYSTEM O VERVIEW 2.
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – Marc h 2000 2-2 2.2 FEAT URES AND OPTIONS This se ctio n des crib e s the s tandard f eature s and av ailable o ptio ns.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-3 2.2.2 OPTIONS The f o llo w in g items ar e av ailable as o ptions fo r all mo de ls and may b .
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 2-4 2.3 MECHANI CA L DESIGN The Co mpaq iPA Q I ntern et D e v ice use s a minito w e r fo r m fac tor f eatu rin g a smalle r fo otp rin t and reduc ed heig ht th an prev io us minitow ers, allo wing e asy f loo r o r des kto p po sitio ning.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-5 2.3.1.2 Rear V iews Item D escript ion Item D escript ion 1 Audio line output 2 Audio line inpu.
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 2-6 2.3 .2 CHASSIS LAYOUT Th e i n t er n a l a ssem bl i es a r e a cces si ble fr om t h e r i gh t s i de of t h e system u n i t .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-7 2.3 .3 SYST EM BOARD LAYOUT S Th e Com p aq i PA Q In t er n et D evice u ses a F l exAT X -t ype (9 . 0 x 7 . 5 i n ch ) system boar d. T wo v ariations are av ailab le; a le gacy -light b o ard and a legac y -f r ee b o ard.
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 2-8 2.4 SYST EM ARCHI T ECT URE Th e Co mpaq iPAQ Int ern et Dev i ce fe atur es an In t el Cele r on or Pentium III pr oce sso r a n d th e 810e c h ipset.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-9 .................. Fi gu re 2 – 6. Co mpaq iP AQ Ar ch it ect u r e, Bl ock d i a gr am 82801 ICH Pri. IDE I/F USB I/F Power Supply 82802 FWH Sec.
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 2-10 2.4 .1 PRO CESSORS The Co mpaq iPAQ f amily in cludes mode ls bas ed o n Celero n an d Pentium III proce sso rs.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-11 2.4.1.3 Pr ocessor Upgr ading All models of the Compaq iPAQ use th e P GA370 zero-inserti on fo r ce (ZIF ) so cke t fo r pr oce sso r mo unting as sho w n in Fig ure 2- 7.
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 2-12 2.4 .2 CHIPSET The Co mpaq iPAQ emplo y s the Intel 810e c h ipse t, w hich is des ign ed to co mpliment the pr ocessor a n d p r ovid e t h e cen t r a l p oin t for t h e sy st em ’ s data transactio n s.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-13 2.4 .3 SUPPO RT CO MPONENT S Input /output functions not pr ov i ded b y th e chipset ar e ha n dled b y oth er support co mponent s.
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 2-14 2.4 .5 MASS ST OR AGE In a stan dar d configurat ion th e Compaq iPAQ s upports two m ass sto r .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-15 2.4 .9 AUDIO SUBSYST EM Th e audio s ubsy stem f eatures an AC ’ 97 spe cif ication-based de sign a n d uses th e in tegra ted AC97 audio co ntrolle r of th e c hipse t and an AC ’ 97- comp l i a n t a u di o codec.
Chapter 2 System Ove rview Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 2-16 Table 2-7. P h ysica l Sp eci fica t i on s Tab le 2- 7. Physic al Specif icat ions Param eter Standard M etric Height 11.80 in 29.97 cm Width 5.66 in 14.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 2-17 Table 2-9. MultiB ay 24x CD-RO M Driv e S pec ificatio n s Tab le 2- 9. MultiB ay 4x DV D-RO M Driv e Specif icat ions (SP # 161685-B21) Paramet er Measurement Interfac e Ty pe / P rotoc ol IDE / ATAP I Transfer Rate: Max.
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Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 3-1 Chapter 3 PRO CESSOR / M E M O RY S UBSYS TEM 3.
Chapter 3 Processor/Memory Subsystem Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 3-2 3.2 PROCESSO R Th e Co mpaq iPAQ is co nfigur ed as e ith er a Celeron-base d or Pentium III-base d sy stem.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 3-3 3 .2 . 2 PE NT IU M III P R OC ESSO R Th e Pe nt ium III pr oce sso r ’ s architec ture ( Figu.
Chapter 3 Processor/Memory Subsystem Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 3-4 3.2 .3 PRO CESSOR UPGRADING All un its use the PGA370 Z IF mo un tin g soc ket an d shi p w ith eith er a Celeron 500E or a Pent ium III 500E in stal led.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 3-5 3.3 MEMORY SUBSYST EM Th e 810e chipset supports PC100 SDR AM fo r sy stem memo ry . T he memory in terface co nsists of a 64-bit data bus o perat in g at 100 MHz prov idin g a m axim um th r oughput r a te o f 800 M B/s.
Chapter 3 Processor/Memory Subsystem Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 3-6 The S PD addres s map is s how n b elo w . Table 3 – 3. SPD Addr ess Ma p (SDRAM DIMM) Tab le 3- 3. SPD Addre ss Map (SDR AM DIMM) Byte Descript ion Not es Byte Descri ption No tes 0 No.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 3-7 Figure 3-4 show s th e sy stem memo ry map. NOTE: All loc ations in memory are c ac heable. B ase memor y is alw ay s mapped t o DR AM. The nex t 128 K B fix ed memory area c an, thr ough the north br idge, be mapped to DR AM or to PC I s pace.
Chapter 3 Processor/Memory Subsystem Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 3-8 3.4 SUBSYST EM CONF IGURA T ION Th e 82810e -DC100 GMCH compo nen t pr ov ides the co n figur ati on function fo r th e pro ce ss o r/memo r y sub sy s tem.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-1 Chapter 4 SYST EM SUPPOR T 4. Chapter 4 SYSTE M SUPP ORT 4.1 INT RODUCT ION Th is chapt er co ve rs subj ec ts dealin g with basic sy stem arch itecture an d support functions.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-2 4.2 PCI BUS OVERVIEW NOTE: This se c tio n des crib e s the P CI b us in ge neral an d highligh ts b us imple mentatio n in th is particu lar sy ste m.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-3 4.2. 1 PCI BUS T RANSACTIONS The P CI b us c ons ists o f a 3 2-b it path (AD3 1-00 lines) that use s a multip lex ed sc heme f o r han dling b o th addres s and data transf ers.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-4 Figure 4-2 show s how th e lo adin g of 0CF8h r esults in a Ty pe 0 co n figura tion cy cle on th e PCI b us . The De vic e Numb er (b its <1 5..
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-5 Not requir ed The reg iste r in de x (CF 8h, b its <7..2 >) ide ntifie s the 32- bit lo catio n w ithin the c o nfigu ration spa ce of t h e PC I devi ce t o be accessed .
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-6 4.2 .2 PCI I NT ERRUPT MAPPING Th e PCI b us pr ov ides f or four in terr upt signa ls; INTA-, INTB-, INTC-, an d INTD-.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-7 4.2.5 PCI CONFIGURA T ION PC I b us o pe rations, e sp ec ially thos e that in vo lve ISA b us .
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-8 4.3 AGP BUS OVERVIEW NOTE: This se ctio n prov ide s a brie f o v erv ie w o f AG P b us o peratio n.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-9 4.3.1.1 Data Requ est R eq ue sting data is ac co mplished in o n e o f tw o w ay s; eithe r mu.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-10 A GP 2X Trans fers Du rin g AG P 2 X transf ers, c loc king is b asic ally the same as in 1X transf ers e xce pt that the 66 - MH z CLK s ignal is us ed to qualif y o nly th e c o ntr o l sig nals.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-11 4.3.2 AGP CONFIGURA T ION AG P b us o peratio ns require the c o nfig uration o f c ertain paramete rs invo lving s y ste m memo r y acces s by t h e AG P g r a p h i cs a d a pt er .
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-12 4.4 INT ERRUPT S The mic rop roc es so r us es tw o ty pe s o f interrupts; mas kab le and nonmask ab le. A maskab le interrupt can b e enab le d o r disab led w ithin th e mic r op roc e ss o r by the us e o f the ST I and CL I instructio n s.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-13 Table 4-5. Maskab le Inte rr upt Prio rities and Ass ignments Tab le 4- 5.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-14 4.4.2 NON-MASKA BL E INT ERRUPT S No n -mask able in terrupts c an n o t b e mas ke d (inhibite d) w ithin the mic ropro c es so r itse lf b ut may b e mas kab le b y so ftw ar e u sing lo gic e xte rn al to the mic ropro c es so r .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-15 4.4.2.2 SM I - Generation The S MI- (Sy ste m Manageme nt Interrupt) is ty pic ally us ed f o r pow er manageme n t fu nctio ns. Whe n po w er manage ment is e n able d, in activ ity time rs are mo nitore d.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-16 4 . 5 I NTE R V A L TI M E R The interval time r generates puls e s at so ftw ar e (programmab le) interv als. A 8254-c ompatib le timer is integrated in to the 82801 co mponent.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-17 4.7 REAL-T IME CLOCK A ND CONFIGURATION MEM ORY The R e al-time clo ck ( R TC) and c o nfigu ration memo r y (also r ef e rr ed to as “ CMOS ” ) f unc tio ns ar e prov ided b y t h e 82801 ICH compo nen t an d is MC146818-co mpat ible.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-18 Tab le 4 -10 lis ts the mapping o f the c o nfig uration me mo ry .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-19 RTC Control Re gi ste r A, B y te 0 Ah Bit Function 7 Update in P rogres s . R ead only. 0 = Time update will not oc c ur before 2444 us 1 = Time update will oc c ur within 2444 us 6.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-20 Co nfigu ration Byte 0Eh, Diagnostic Statu s Default V alue = 00h This b y te c o ntains diagno stic st atus d ata. Configurat ion B yte 0Fh, Syste m Rese t Code Default V alue = 00h This b y te c o ntains the sy s tem re se t c o de .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-21 Configurat ion B yte 13 h, Se c urity Fu nct ions Default V alue = 00h Bit Function 7 Res erv .
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-22 Co nfigu ratio n Bytes 19 h-1 Ch , Hard Driv e Types B y te 19 h co n tains the har d driv e ty pe f or driv e 1 o f the primary co ntr o ller if by te 1 2h b its <7.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-23 Co nfigu ratio n Byt e 26h , Au xilia ry P eriph eral Co nfigu ratio n Default V alue = 00h Bi.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-24 Co nfigu ratio n Byt e 29h , Miscellan eo u s Co nfigu ratio n D ata Default V alue = 00h Bit Function 7..5 Reserv ed 4 Primar y Hard D riv e Enable ( Non-P CI I DE C ontroller s) 0 = Dis able 1 = Enable 3.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-25 Configurat ion B yte 2Dh, Addi ti onal Fla gs Default V alue = 00h Bit Function 7.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-26 Co nfigu ration Byte 35h, APM Statu s F lags Default V alue = 11h Bit Function 7.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-27 4.8 SYST EM MANA GEMENT This se ctio n des c ribe s f unctio ns hav ing to d o w ith se cu rity , pow er manageme n t, tempe r ature, and o v e ral l s tat us .
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-28 4.8.1.2 Driv eLock Passwords Th is sy stem supports th e Drive Lo ck se curity fe atur e f or a compatible har d dr ive in stal led in th e Mu ltib ay .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rc h 2000 4-29 4.9 SYST EM I/O MAP Table 4-20 lists the fixe d addr esse s o f the input /output (I/O) ports. Table 4-11. System I/ O Map Tab le 4- 20. Syste m I/O Ma p I/O Port Function 0000.
Chapter 4 System Support Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 4-30 This page is intentionally b lank..
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-1 Chapter 5 I NP U T/ O UTP UT I N TE RF A CE S 5. Chap ter 5 INP UT/OUTPUT INTERFACES 5.1 INT RODUCT ION Th is chapt er desc r ibe s th e standa rd (i .
Chapter 5 Input/Output Interfac es 5-2 Compaq iPAQ F amily of Internet Dev ice s First Editio n – Marc h 2000 H ard driv es ty pe s no t f o und in th e R OM ’ s paramete r table ar e auto matical.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-3 5.2. 2 IDE CONNECT OR Th i s system u ses a st a n da r d 4 0- p in con n ect or for t h e pr im a r y ID E d evi ce an d con n ect s ( via a cab le) to the har d driv e installe d in th e right side driv e b ay .
Chapter 5 Input/Output Interfac es 5-4 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 The s y stem b oard inc lude s a 5 0-pin c o nn ec to r fo r the se co ndary ID E drive th at is installe d in the Mu ltiB ay mounting po sition o n th e le ft s ide o f the c hassis .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-5 5 . 4 SE R IAL IN T E R F AC E The le gac y -light mod els includ e a s e rial in terf ace to transmit and r ecei ve a synch r on ous ser ia l data with extern al devic es.
Chapter 5 Input/Output Interfac es 5-6 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.4 .2 SERIA L T EST INT ERF ACE Lega cy-fr ee system s d o n ot p r ovide a n ext er n a.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-7 Table 5 – 7 . S e rial I nte rf ac e C o ntro l R e gi s te rs Tab le 5- 7.
Chapter 5 Input/Output Interfac es 5-8 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.5 P A RA LLEL IN TERFA CE The le gac y -light mod els includ e a p arallel interf ace fo r co n n ec tion to a pe riph eral de v ic e that has a co mpatib le inte rfac e , th e mo st c o mmo n be ing a prin ter.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-9 5.5. 2 ENHA NCED PA RALLEL PORT MODE In Enh anced Paralle l Po r t (EPP ) mo de, incre ase d dat.
Chapter 5 Input/Output Interfac es 5-10 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.5 .4 PA RALLEL INT ERFACE PROGRAMM ING Pro gramming th e p arallel interf ace co nsists o f co n f iguratio n, whic h ty pic ally oc curs du rin g PO ST, and c o ntrol, w h ich o c cu rs during runtime.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-11 5.5.4.2 Parallel I nter face Control The B IO S f un ctio n INT 1 7 pro v ide s s implif ied co n trol o f the p arallel interf ace .
Chapter 5 Input/Output Interfac es 5-12 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 Sta tus R egis te r, I/O Por t 379h, Read O nl y This regis te r co ntains the c urr ent printer status . R e ading this regis te r cle ars the interrupt co n ditio n of th e p arallel po r t.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-13 FIFO Re giste r, I/O P ort 7 F8h ( ECP Mode Only ) While in ECP/f orw ard mo de , this lo catio n is us ed f o r filling the 16-b y te FI FO w ith data b y tes .
Chapter 5 Input/Output Interfac es 5-14 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.5. 5 PA RA LL EL INT ERFACE CONNECT OR Figure 5-5 an d Ta ble 5-10 show th e c onn ec tor an d pi n out o f th e par allel in t erface co nn ecto r .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-15 5.6 KEYBOARD/POI NT ING DEVI CE INTERF ACE The le gac y -light mod els includ e P S/2 -ty pe ke y bo ar d/po inting dev ice interfac es f or the c o nn ec tion of a stan dar d enh a n ce d key bo a r d an d a m ous e.
Chapter 5 Input/Output Interfac es 5-16 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 Contr ol o f the data an d clock s ign als is sh ar ed b y t h e 8042and t he key bo ar d depe n din g on th e o riginator o f the tran sf erred data.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-17 5.6 .2 POINT ING DEVICE I NT ERF ACE OPERATION The po in ting dev ice (ty pic ally a mo use ) co nnec ts to a 6-pin DIN -ty pe co n nec to r th at is ide ntical to t h e keyb oar d con n ect or both ph y si ca ll y an d el ect r i ca l l y.
Chapter 5 Input/Output Interfac es 5-18 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.6.3.2 8042 Contr ol The B IOS f unctio n INT 16 is ty pic ally use d f or co n trolling interac tio n with the ke y b o ard. Sub - f unctio n s o f IN T 16 c onduc t th e b asic ro utine s o f handlin g ke y b o ard data (i.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-19 Table 5-13 lists the co mma nds th a t can be se n t to th e 8042 b y th e CPU . Th e 8042 use s IRQ 1 fo r gaining th e atte ntion o f the CP U .
Chapter 5 Input/Output Interfac es 5-20 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 Tab le 5- 13. CP U Commands To T he 8042 (Cont inued) Value C ommand D escrip tion C0h Read input port of the 8042.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-21 5.6. 4 KEYBOARD/POINTING DEVICE I NT ERFACE CONNECT OR Th e legacy -l igh t m ode l pr ov i des s epara te PS/2 c onn ec tors fo r t he key bo ar d an d point in g dev ice.
Chapter 5 Input/Output Interfac es 5-22 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.7 UNIVERSAL SERIA L BUS INT ERFACE The U n iv ersal S erial B us (U SB ) interf ace pr.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-23 Th e U SB tra n smissions co n sist of packets us in g one o f f our t y pes o f f o r mats (Figur e 5-9) th at i n cl u d e t wo or m or e of s even fi el d t y p es .
Chapter 5 Input/Output Interfac es 5-24 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.7.2 USB PROGRAMM ING Pro gramming th e U SB in terf ace co nsists o f co n f iguratio n, whic h ty pic ally o cc ur s du rin g PO ST, and co n trol, w hich oc curs at runtime.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-25 5.7.3 USB CONNECT OR Th e USB in ter face p r ovi des t wo ser i es- A con n ect or s on t h e fr on t p a n el a n d , on l eg a cy -fr ee mod el s, t h r ee ser ies -A USB con n ect or s on t h e r ea r p a n el .
Chapter 5 Input/Output Interfac es 5-26 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.8 AUDI O SUBSYST EM A P CI au dio su b sy ste m is integrated o nto the s y ste m b o ard o f the Co mpaq iPA Q. Imp le menting AC ’ 97 de sign guide lin es , the audio sub sy ste m is d es igned to prov ide o ptimum s o und.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-27 Figu re 5-11. Audio Sub sy stem F un ctio n al B lo ck Diagram Le gacy be ep audio o rigi n ate.
Chapter 5 Input/Output Interfac es 5-28 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.8.2 A C97 AUDI O CONT ROLL ER The AC 97 A udio Co ntr olle r is a PC I de v ic e ( de .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-29 5.8.4 AUDI O CODEC Th e audio c ode c prov i des pulse co de modulation (PCM) co din g an d deco di n g of a udio info r matio n as w e ll as the s e lec tion and/or mixing o f analo g c han n els .
Chapter 5 Input/Output Interfac es 5-30 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.8.5 A UDIO PROGRA MMI NG Aud io sub sy ste m pro grammin g c o nsists co n f iguratio n, ty pic ally acc o mplis hed du rin g PO ST, and co ntr ol, w hich oc curs du rin g runtime.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-31 5.8 .6 AUDIO SPECIFI CAT IONS The sp ec ific atio ns o f the aud io sub sy ste m are liste d in Tab le 5 -21. Tab le 5 – 21. A udio Sub sy ste m Spe cif ic atio ns Tab le 5- 21.
Chapter 5 Input/Output Interfac es 5-32 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.9 NET WORK INT ERFACE CONTROL L ER The Co mpaq iPA Q incl ude s a ne tw o rk interfac e co n trolle r (NIC ) res ide nt on the s y stem bo ard.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-33 NOTE: Fo r the W OL and AO L f eature s to func tio n as de sc r ibe d in the f ollo wing paragr aph s, the sy stem unit must b e plugged into a liv e AC o utlet.
Chapter 5 Input/Output Interfac es 5-34 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.9. 3 POWER M ANA GEMENT SUPPORT Th e 82559 c ontr oller fe atur es Wired-f or-Man agem.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 5-35 5.9.4 NIC PROGRA MMI NG Prog r ammin g the 82559 NIC c o nt rolle r consis ts o f co n figuration, w hich occ ur s durin g POST, and co n trol, w hich oc curs at runtime.
Chapter 5 Input/Output Interfac es 5-36 Compaq iPAQ F amily of Internet Dev ice s First Editio n – March 2000 5.9.4.3 RJ-45 Con nector Fi gu r e 5 - 15 sh ow s t h e RJ- 4 5 con n ect or us ed for t h e NIC i n t er face. T h is con n ect or in cl ud es t h e tw o s tatus L EDs as part o f the c o nn ec tor ass emb ly .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 6-1 Chapter 6 GRA P HI CS SUBS YS TEM 6. Chapter 6 Gr aphics S ubsy stem 6.1 INT RODUCT ION This c hapter de sc ribe s the graphics sub sy ste m o f the Co mpaq iPA Q I nternet De v ic e.
Chapter 6 Graphics Subsystem Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 6-2 6.2 F UNCT IONA L DESCRIPT ION Th e Intel 810e chipset in tegra tes the equiv alen t of an Int el i740 gr aph ics co n t roller i n to the GMCH compo nen t (Figur e 6-1).
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 6-3 Monitor Connec tor Figu re 6-2. 82810e/DC-100 In tegra ted Graph i cs Co n tr oller Th e In t el gr ap h ics con t r ol l er i n clu d es sp eci al en h a n cemen t s for 2D oper at i on s .
Chapter 6 Graphics Subsystem Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 6-4 6.3 DISPLAY MODES Th e Intel gr aph i cs c o n tr oller supports th e f ollo w in g 2D display mode s: Table 6-1. Int el Graph ics Display Mo des Tab le 6- 1.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 6-5 6.5 PROGRA MMI NG 6.5.1 CONF IGURA T ION The graphics su b sy ste m wo r ks o ff th e A GP b us and is c o nfigu red throug h PCI c onf iguratio n space r egisters using PCI pr oto co l .
Chapter 6 Graphics Subsystem Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 6-6 6.6 MONI T OR POWER MANA GEME NT CONT ROL This co ntr olle r prov ides monito r po w er c o ntr o l fo r mo nitors that c onf o rm to the VES A dis play pow er m an agement sign a lin g (DPMS) proto co l.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 7-1 Drives 110/220 VAC 110/220 VAC Select SW Chapter 7 POW ER and SIG NA L DIS TRIBUTION 7.
Chapter 7 Pow er and Signal Distribution Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 7-2 7.2 .1 PO WER SUPPLY ASSEMBLY Th e po w er supply asse mbly is co n tai n ed in a singl e unit th at fe atur es a se lectab le in put vo ltage: 90-132 VAC and 180-264 VAC.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 7-3 7.2.2 POWER CONT ROL Th e po w er supply asse mbly is co n tr olled digitall y by t he PS On sign al (Figur e 7-1). When PS On is asserted, th e Po w er Supply Assemb ly is activated and al l vo ltage outputs are pr oduc ed.
Chapter 7 Pow er and Signal Distribution Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 7-4 7.3 POWER DISTRIBUT ION 7.3.1 3.3/5/12 VDC DI STRIB UT ION The po w er supply asse mbly in clude s a multi-c o nn ec tor cab le ass emb ly that r oute s +3.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 7-5 7.4 SIGNAL DISTRIBUT ION Fig ures 7-4 s how s ge n eral signal dis tribu tio n be tw ee n th e main sub asse mblie s o f the sy ste m un it. NOTE: [1] On legac y -light models, PS/2- ty pe connec tor .
Chapter 7 Pow er and Signal Distribution Compaq iPAQ F amily of Internet Dev ice s F ir st E dit ion - Mar ch 2000 7-6 Fi gu re 7 – 4 . H ead er P inou ts CD Audio Header P7 1 Ground 3 Ground 4 Audi.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-1 Chapter 8 BIOS ROM 8. Chapter 8 BIOS ROM 8.1 INT RODUCT ION Th e Co mpaq iPAQ Int ern et Dev i ce uses Co m paq BIOS firmware loaded into th e 82802 FW H comp on en t .
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-2 8.2 DESKT OP MANA G EMENT SUPPORT De sk to p M anageme nt deals w ith issu es o f se curity , identif ic atio n, an d sy stem manage me nt functions. Des ktop Management is pr ov i ded b y BIOS INT 15 functions listed Table 8-1.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-3 To suppo rt Window s NT an additional table to the B IOS 32 table has b ee n def in ed to co ntain 32- b it po inters f or the D DC and S IT lo c atio ns.
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-4 8.2 .1 SYST EM ID Th e INT 15, AX=E800h BIO S f un ction can be us ed to ident ify th e ty pe of sy stem. Th is function w ill retu rn th e s y ste m ID in th e B X regi ste r.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-5 8.2 .3 EDID RET RIEVE Th e B IOS f unction INT 15, AX=E813h i s a tr i-m odal call th at r etr ieve s the VESA e xtended display ident ification data (E DID).
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-6 8.2 .5 SYST EM MAP RETRIEVAL The B IOS fu n ctio n INT 15, AX=E820h w ill return bas e me mo ry and ISA/PCI me mo ry co ntiguo us w ith bas e me mory as normal me mo ry ranges .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-7 8.2.6 F LASH ROM FUNCT IONS Th e sy stem B IOS may be upgraded b y f lash in g th e RO M using t h e INT 15, AX=E822h BIOS in t er fa ce, wh i ch i n clu d es t h e n ecessa r y subfun ct ion s.
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-8 8.2 .8 ACCESSING CMOS Configurati on memory data can be r etrieve d w ith th e BIO S call INT 15, AX=E823h . Th is tr i- mo dal f unctio n r etriev es a spe c if ic b y te f rom the CMO S map de sc ribe d in Chapte r 4.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-9 Table 8-2. CMOS Feature Bits Tab le 8- 2. CMOS Fea ture Bi ts CX Function Defau lt Value Defau lt Setting CX Function Defau lt Value Defau lt Setting 0000h PCI 2.
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-10 8.2. 10 SECURIT Y FUNCT IONS Th e INT 15 AX=E846h BIOS function is used to co nt rol various se curit y features o f the sy stem. This f unctio n may be issue d by a r emo te s y ste m (o v e r a n etw ork).
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-11 8.3 MEM ORY DET ECT ION AND CONFI GURATION This sy stem u se s the Se rial Pres enc e D e tec t (SPD ) me thod o f de termining th e installe d DIM M co nfigu ration.
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-12 8.4 PNP SUPPORT Th e B IOS includes Plug ’ n Play (PnP) suppo r t fo r Pn P ve rsion 1. 0A. NOTE : Fo r fu ll PnP f unctio nality to b e realize d, all pe ripherals us e d in the sy stem mu st be des ign ed as “ PnP r ea dy .
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-13 8.4.1 SM BI OS Th is sy stem suppo r ts Sy stem Man agement BIOS (S MB IOS) v ersion 2.3. 1, which i s co m plia n t w ith the De skto p M anageme nt Interfac e (D MI) spe cif ic atio n.
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-14 8.5 POWER MA NA GEMENT FUNCT IONS Th e B IOS prov ides thr ee ty pes o f po w er ma n agement support: in dependent PM suppo r t; ACPI suppo r t, a n d APM s upport.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-15 8.5 .2 ACPI SUPPORT Thi s s y s te m m e e ts the hardw are and f irmw are re qu ire me nts f o r b e ing AC P I c o mpl ia nt.
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-16 Th r ee pow er states are def in ed under pow er m an agement: On - The c o mpute r is runn ing, all sub sy ste ms are o n and draw ing fu ll po w er.
Techn ical Referen ce Guid e Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-17 Th e AP M B IOS f or th is sy stem supports APM 1.2 as w ell a s previo us v ersions 1.1 an d 1. 0. T he AP M B IOS f unctio n s are lis ted in Table 8-3 .
Chapter 8 BIOS ROM Compaq iPAQ F amily of Internet Dev ice s First Editio n - Ma rch 2000 8-18 8.7 BIOS UPGRA DI NG The f lash RO M de vic e can be r e-w ritten with updated B IOS c o de if n ecessa r y . T h e fl a sh in g proce dur e is as f o llow s: 1.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – January 2000 A-1 A ppendix A ERR OR M ESSA GES A ND COD ES A. App endix A ERROR MESS AGES AND CODES A.1 I NT RODUCT ION This appe n dix lists the e rr o r co de s and a b r ief des criptio n of the prob able caus e o f the error .
Appendix A Error Messages and Codes Compaq Pers onal Computers Changed - Januar y 2000 A-2 A.4 POWER- ON SEL F T EST (PO ST ) MESSAGES Table A – 3. Pow er -On Sel f Test (POST ) Messa ges Table A-3 .
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – January 2000 A-3 A.5 PROCESSO R ERROR MESSAGES ( 1xx-xx) Table A – 4. Sy stem Er r or Messa ges Table A-4 .
Appendix A Error Messages and Codes Compaq Pers onal Computers Changed - Januar y 2000 A-4 A.6 MEMORY ERROR MESSA GES ( 2xx-xx) Table A – 5. Me mo ry Erro r M e s s ag e s Table A-5 .
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – January 2000 A-5 A.8 PRINT ER ERROR MESSAGES ( 4xx-xx) Table A – 7. Pri nte r Erro r Me s s ag e s Table A-7 . Print er Er ror M essages Message Probab le Cause Message Pr obabl e Cause 401-01 Printer failed or not c onnec ted 402- 11 Interr upt tes t, data/c ntr l.
Appendix A Error Messages and Codes Compaq Pers onal Computers Changed - Januar y 2000 A-6 A.10 DISKET T E DRIVE ERROR MESSA GES ( 6xx-xx) Table A – 9.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – January 2000 A-7 A.12 MODEM COMM UNICA T IONS ERROR MESSAGES ( 12xx-xx) Table A – 11.
Appendix A Error Messages and Codes Compaq Pers onal Computers Changed - Januar y 2000 A-8 A.13 SYST EM ST ATUS ERRO R MESSAGES ( 16xx-xx) Table A – 12.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – January 2000 A-9 A.15 HARD DRI VE ERROR MESSA GES ( 19xx-xx) Table A – 14. H ard D riv e E rro r Me ss ag e s Tab le A- 14.
Appendix A Error Messages and Codes Compaq Pers onal Computers Changed - Januar y 2000 A-10 A.17 AUDI O ERROR MESSAGES ( 3206-xx) Table A – 16. Au dio Erro r M e s s ag es Table A-1 6. Aud io Err or M ess ag e Message Probabl e Cause 3206-x x A udio s ub syste m in te rn al erro r A.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – January 2000 A-11 A.20 SCSI I NT ERF ACE ERROR MESSAGES ( 65xx-xx, 66xx-xx, 67xx-xx) Table A – 19.
Appendix A Error Messages and Codes Compaq Pers onal Computers Changed - Januar y 2000 A-12 A.22 CEMM PRI VILEDGED OPS ERROR MESSAGES Table A – 21. CEMM Priv ilege d Ops Err or Me ssage s Tab le A- 21.
Techn ical Referen ce Guid e Compaq Pers onal Computers Ori ginal - July 1996 B-1 A ppendix B A S CI I CHA RA CTER S ET B. Appendix B ASCII CHARACTE R SET B.1 INTRODUCT ION Th is appendi x lists, i n Table B -1, th e 256-char acter ASCII co de se t in cludin g th e dec imal an d hexad ec imal value s.
Appendix B ASCII Charact er Set Compaq Pers onal Computers Ori ginal - July 1996 B-2 Table B-1 . ASCI I Code Set (Cont inued) Dec Hex Symbol Dec Hex Symbol Dec Hex Symbol Dec H ex Symbol 128 80 Ç 160.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed –- M arch 2000 C-1 A ppendix C KEYBOA RD C. A ppendix C K E YBOARD C.1 INTRODUCT ION This appe n dix de sc r ib es the Co mpaq ke y b o ard th at is incl ude d as standard w ith the sy stem u nit.
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-2 Key board Interface (Syst e m U ni t) Data / CLK C.2 KEYST ROKE PRO CESSING A f unctio nal blo ck d iagram of th e k ey strok e p roc e ss ing ele ments is s how n in Figu re C-1 .
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – - M arch 2000 C-3 C.2. 1 PS/ 2- T YPE KEYBOARD T RANSMISSI ONS The P S/2- ty pe k ey bo ar d se nds tw o main ty pe s o f data to th e s y ste m; c o mmands (o r r es ponse s to sy stem comm an d s) a n d k ey st r oke scan codes.
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-4 C.2. 2 USB- T YPE KEYBO ARD TRANSMISSI ONS The U SB -ty pe ke y bo ar d se n ds e s se ntially the s ame info r mation to the s.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – - M arch 2000 C-5 C.2.3 KEYBOARD LAYOUT S Figures C-3 th r ough C-8 show th e ke y l ay o uts fo r key bo ar ds shi pped w i th Compaq sy stems.
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-6 C.2.3.2 Win dows En han ced Key boards Fi gu re C – 5. U.S. English Window s (101W-Ke y ) Key bo ard Key Po sitio n s Fi gu re C – 6.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – - M arch 2000 C-7 C.2.3.3 Easy A ccess Key boards The Eas y Ac ce ss ke y b o ard, su ch as that shipp ed w ith th e C o mpaq iP aq .
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-8 C.2.4 KEYS All key s genera te a make co de (w h en pr esse d) an d a break co de (w h en r elease d) w ith th e excep t i on of th e Pause key (pos. 16), w h ich pr oduce s a make co de only .
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – - M arch 2000 C-9 C.2.4.2 Mu lti-Key stroke Fun ctions Shift - T he Shift key (pos . 75/86), when h eld do wn, pr oduc es a shift state (upper case ) fo r key s in po sitio n s 17 -29, 3 0, 39- 51, 60 -70 , and 76-8 5 as lo n g as the C aps Lock key (pos .
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-10 C.2.4.4 Easy A ccess Key strokes The Eas y Acc ess ke y b o ard (Figu re C- 7) inclu de s add itio nal key s (also r ef erred to as b utto ns) us e d to streamline internet navig atio n.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – - M arch 2000 C-11 C.2.5 KEYBOARD COMM ANDS Table C-1 lists the co mma nds th a t th e key bo a r d can send t o the sy stem (spe cific ally, to th e 8042- ty pe lo gic). Table C – 1.
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-12 Table C – 2. K eyboar d S ca n C od es Table C-2 . Keyboar d Scan Codes Key Pos.
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – - M arch 2000 C-13 Table C-2 . Key board Sc an Codes (Cont inued) Key Pos Lege nd Mode 1 Mode 2 Mode 3 41 W 11/91 1D /F0 1D 1D/F0 1D.
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-14 Table C-2 . Key board Sc an Codes (Cont inued) Key Pos. Legend Mode 1 Mode 2 Mode 3 81 N 31/B1 31/ F0 31 31/F0 31 82 M 32/B2 3A /F0 3A 3A/F 0 3A 83 , 33/B3 41/F0 41 41/F0 41 84 .
Techn ical Referen ce Guid e Compaq Pers onal Computers Changed – - M arch 2000 C-15 C.3 CONNECT ORS Two t y pes o f ke y bo ar d in ter fac es are used in Compaq sy stems: PS/2-ty pe an d US B-ty pe.
Appendix C Keyboard Compaq Pers onal Computers Changed - M arch 2000 C-16 This page is intentionally b lank..
INDEX I. ab b rev iations, 1- 3 AC97 lin k bus , 5-28 Accel er a t ed Gr ap h i cs Por t ( AGP) , 4 -8 ACPI, 5-34 acrony ms, 1-3 AGP, 4-8, 6-2 AOL r equirements, 5-33 APM, 5-34 APM BIOS funct ion s, 8.
key (key bo a r d) functions, C-8 ke yboar d , C - 1 ke y b o ard ( mi c ro )p ro ce s s o r, C- 2 key bo a r d lay outs, C-5 ke yboar d , USB, C - 4 key bo a r d/point in g dev ice interface, 5-15 ke.
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