Technical Reference Guide

Compaq Deskpro EXS and Workstation 300 Personal Computers

Featuring the Intel Pentium 4 Processor

First Edition - December 2000

xiii

LIST OF TABLES

TABLE 1–1. ACRONYMS AND ABBREVIATIONS.......................................................................................... 1-3

TABLE 2-1. STANDARD FEATURE DIFFERENCE MATRIX............................................................................. 2-2

TABLE 2-2. CHIPSET COMPARISON........................................................................................................... 2-11

TABLE 2-3. SUPPORT COMPONENT FUNCTIONS........................................................................................ 2-11

TABLE 2-4. STANDARD AGP GRAPHICS CARD COMPARISON................................................................... 2-13

TABLE 2-5. ENVIRONMENTAL SPECIFICATIONS........................................................................................ 2-14

TABLE 2-6. ELECTRICAL SPECIFICATIONS................................................................................................ 2-14

TABLE 2-7. PHYSICAL SPECIFICATIONS.................................................................................................... 2-15

TABLE 2-8. DISKETTE DRIVE SPECIFICATIONS......................................................................................... 2-15

TABLE 2-9. 48X CD-ROM DRIVE SPECIFICATIONS.................................................................................. 2-16

TABLE 2-10. HARD DRIVE SPECIFICATIONS............................................................................................. 2-16

TABLE 3–1. HOST/PCI BRIDGE CONFIGURATION REGISTERS (GMCH, FUNCTION 0) ............................... 3-10

TABLE 4-1. PCI DEVICE CONFIGURATION ACCESS DATA.......................................................................... 4-4

TABLE 4-2. PCI BUS MASTERING DEVICES................................................................................................ 4-6

TABLE 4-3. LPC BRIDGE CONFIGURATION REGISTERS (ICH, FUNCTION 0)................................................4-8

TABLE 4-4. PCI BUS CONNECTOR PINOUT................................................................................................. 4-9

TABLE 4-5. PCI/AGP BRIDGE CONFIGURATION REGISTERS (MCH, FUNCTION 1)....................................4-13

TABLE 4-6. AGP BUS CONNECTOR PINOUT.............................................................................................. 4-14

TABLE 4-7. MASKABLE INTERRUPT PRIORITIES AND ASSIGNMENTS ........................................................4-16

TABLE 4-8. MASKABLE INTERRUPT CONTROL REGISTERS....................................................................... 4-17

TABLE 4-9. DEFAULT DMA CHANNEL ASSIGNMENTS AND REGISTER I/O PORTS................................... 4-19

TABLE 4-10. CLOCK GENERATION AND DISTRIBUTION ............................................................................ 4-20

TABLE 4-11. CONFIGURATION MEMORY (CMOS) MAP........................................................................... 4-22

TABLE 4-12. SYSTEM BOOT/ROM FLASH STATUS LED INDICATIONS...................................................... 4-33

TABLE 4-13. SYSTEM OPERATIONAL STATUS LED INDICATIONS.............................................................. 4-33

TABLE 4-14. SYSTEM I/O MAP ................................................................................................................ 4-35

TABLE 4-15. 82801 ICH GPIO REGISTER UTILIZATION (DESKTOP AND MINITOWER ONLY) .................... 4-36

TABLE 4-16 LPC47B357 CONTROL REGISTERS........................................................................................4-37

TABLE 4-17. LPC47B357 GPIO REGISTER UTILIZATION (DESKTOP AND MINITOWER ONLY).................. 4-38

TABLE 5–1. IDE PCI CONFIGURATION REGISTERS.................................................................................... 5-2

TABLE 5–2. IDE BUS MASTER CONTROL REGISTERS................................................................................. 5-2

TABLE 5–3. 40-PIN PRIMARY IDE CONNECTOR PINOUT............................................................................ 5-3

TABLE 5–4. DISKETTE DRIVE CONTROLLER CONFIGURATION REGISTERS..................................................5-5

TABLE 5–5. DISKETTE DRIVE INTERFACE CONTROL REGISTERS................................................................ 5-5

TABLE 5–6. 34-PIN DISKETTE DRIVE CONNECTOR PINOUT ........................................................................ 5-7

TABLE 5–7. DB-9 SERIAL CONNECTOR PINOUT......................................................................................... 5-8

TABLE 5–8. SERIAL INTERFACE CONFIGURATION REGISTERS.................................................................... 5-9

TABLE 5–9. SERIAL INTERFACE CONTROL REGISTERS............................................................................. 5-10

TABLE 5–10. PARALLEL INTERFACE CONFIGURATION REGISTERS........................................................... 5-13

TABLE 5–11. PARALLEL INTERFACE CONTROL REGISTERS....................................................................... 5-14

TABLE 5–12. DB-25 PARALLEL CONNECTOR PINOUT.............................................................................. 5-15

TABLE 5–13. 8042-TO-KEYBOARD COMMANDS......................................................................................5-17

TABLE 5–14. KEYBOARD INTERFACE CONFIGURATION REGISTERS..........................................................5-18

TABLE 5–15. CPU COMMANDS TO THE 8042..........................................................................................5-20

TABLE 5–16. KEYBOARD/POINTING DEVICE CONNECTOR PINOUT ..........................................................5-21

TABLE 5–17. USB INTERFACE CONFIGURATION REGISTERS....................................................................5-24

TABLE 5–18. USB CONTROL REGISTERS................................................................................................. 5-24