Table of Contents
Advertisement
Chapter 4 System Support
Configuration Byte 94h, ROM Flash/Power Button Status
Default Value = 00h
Bit
Function
7..5
Reserved
4
ROM Flash In Progress (if set)
3
Reserved
2
Power Button Inhibited (ifset)
1
User-Forced Bootblock (if set)
0
ROM Flash In Progress (if set)
Configuration Byte 97h, Asset/Test Prompt Byte
Default Value = 00h
Bit
Function
7,6
Test Prompt:
01 = Fake F1
10 = Fake F2
11 = Fake F10
5..0
Asset Value
Configuration Byte 9Bh, Ultra-33 DMA Enable Byte
Default Value = 00h
Bit
Function
7..4
Reserved
3
Secondary Slave Enabled for U-33 if Set
2
Secondary Master Enabled for U-33 if Set
1
Primary Slave Enabled for U-33 if Set
0
Primary Master Enabled for U-33 if Set
Configuration Byte 9Ch, Mode-2 Configuration Byte
Default Value = 1Ch
Bit
Function
7,6
Reserved
5
Mode 2 Support
0 = Disable
1 = Enable
4
Secondary Hard Drive Controller
0 = Disable
1 = Enable
3,2
Secondary Hard Drive Controller IRQ
00 = IRQ10
01 = IRQ11
10 = IRQ12
11 = IRQ15
1,0
Reserved
4-40
Compaq Deskpro 4000 and 6000 Personal Computers
featuring the Pentium II Processor
First Edition - October 1997
Advertisement
Table of Contents
