Compaq EN Series Technical Reference Manual page 172

Peripheral and Input Device Record, SIT Record 07h
Byte Function
00h Record ID
01h No. of Data Bytes in Record
02h DMA Functions, SCSI Support, Flashable ROM, Setup
Partition, 101 Keyboard
03h Erase-Eaze Kybd. Support in ROM, El Torito CD Boot
Support, QuickBoot, ROM Functions
04h Formfactor
05h Softdrive 1 & 2 Data
06h Softdrive 3 & 4 Data
07h-0Ah Softdrive 1-4 Starting Address
0Bh Panel ID
0Ch Integrated Monitor, ROM Socket, No. of Prog. Serial Ports
0Dh Parallel Port Mode, Modem Type
0Eh Drive Fault Prediction Support for Drives 0-3
0Fh, 10h PCI Bus Master CMOS Data
11h, 12h VGA Palette Snoop Function
13h Misc. PCI Information
14h, 15h I/O Address for I
2
16h I C Information Byte
17h ATAPI Device Information (Logical Devices 1 & 2)
18h ATAPI Device Information (Logical Devices 3 & 4)
19h 3-D Audio Support
1Ah BIOS Supported Features
1Bh Misc. Features (Power Inhibit Support)
1Ch, 1Dh Back-to-Back I/O Delay Index 0
1Eh, 1Fh Back-to-Back I/O Delay Index 1
20h, 21h Back-to-Back I/O Delay Index 2
22h, 23h Back-to-Back I/O Delay Index 3
24h Back-to-Back I/O Delay NVRAM Location
25h Bit Mask for Byte 24h
26h O/S Boot NVRAM Location
27h Bit Mask for Byte 26h
28h-2Bh IDE Drive 0-3 Max DMA/PIO Mode
2Ch-2Dh Offset Address in EBDA for Bezel Button
2Eh Processor Upgrade Mounting
2Fh Parallel Port Connector Type/Pinout
30h Serial Port Connector Type
31h Serial Port Maximum Speed
32h Serial Port Maximum Speed
33h Serial Port Maximum Speed
34h DMA Burst Mode Support
35h Keyboard Connector Type
36h System UDMA Capabilities
37h Diskette Type Installed
38h On-Board NIC Speed
39h On-Board NIC Attributes
3Ah General Purpose Software Support
3Bh System EDMA Support
NOTE:
[1] Determined at run time.
2
C Device
Compaq Deskpro EN Series of Personal Computers
Desktop and Minitower Form Factors
Third Edition - September 1998
Technical Reference Guide
Default
Value
07h
3Ah
27h
53h
[1]
FFh
FFh
B0 B5 BA BFh
00h
12h
00h
[1]
0000h
0000h
01h
0000h
00h
[1]
[1]
00h
01h
01h
[1]
[1]
[1]
[1]
n/a
n/a
00h
00h
[1]
n/a
06h
41h
01h
01h
C2h
00h
[1]
03h
0Fh
01h
00h
00h
[1]
0Fh
8-9