Compaq Evo D500 User Manual

Technical Reference Guide
The register index (CF8h, bits <7..2>) identifies the 32-bit location within the configuration space
of the PCI device to be accessed. All PCI devices can contain up to 256 bytes of configuration
data (Figure 4-3), of which the first 64 bytes comprise the configuration space header.
Base Address Registers
10h
Memor
y
Limit Memor
y
Base
24h
3Ch
40h
38h
18h
20h
1Ch
FCh
2Ch
28h
30h
34h
08h
0Ch
04h
Register
Index
00h
Sub. Bus # 2
n
d
Lat.Tmr
Secondar
y
Status
Sec. Bus #
I/O Limit
Pri. Bus #
I/O Base
BIST Lat. Timer
Device-Specific Area
Prefetch. Mem. Limit Prefetch. Mem. Base
Prefetchable Base U
pp
er 32 Bits
Prefetchable Limit U
pp
er 32 Bits
I/O Limit Upper 16 Bits
I/O Base Upper 16 Bits
Ex
p
ansion ROM Base Address
Brid
g
e Control Int. Pin Int. Line
Reserved
Device ID Vendor ID
0 7 8 15 16 24 23 31
Command
Revision ID
Line Size
Class Code
Hdr. T
yp
e
Status
Not required
00h
Register
Index
Base Address Registers
BIST
Min. Lat. Int. Line
Lat. Timer
Device-Specific Area
Card Bus CIS Pointer
Reserved
Min. GNT Int. Pin
Reserved
Ex
p
ansion ROM Base Address
Subs
y
stem ID Subs
y
stem Vendor ID
Device ID
Status
Hdr. T
yp
e
Class Code
Vendor ID
0 7 8 15 16 23 24 31
Command
Revision ID
Line Size
40h
3Ch
38h
FCh
2Ch
28h
30h
34h
04h
08h
0Ch
10h
Configuration
Space
Header
PCI Configuration Space Type 1
PCI Configuration Space Type 0
Data required by PCI protocol
Figure 4-3. PCI Configuration Space Mapping
Each PCI device is identified with a vendor ID (assigned to the vendor by the PCI Special Interest
Group) and a device ID (assigned by the vendor). The device and vendor IDs for the devices on
the system board are listed in Table 4-2.
Table 4-2. System Board PCI Device Identification
Table 4-2.
System Board PCI Device Identification
PCI Device Vendor ID Device ID
82815 GMCH:
Memory Controller
AGP Bridge
Direct AGP Controller
8086h
8086h
8086h
1130h
1131h
1132h
82801 ICH2:
PCI Bridge
LPC Bridge
EIDE Controller
USB I/F #2
SMBus Controller
AC97 Audio Controller
Network Interface Controller
8086h
8086h
8086h
8086h
8086h
8086h
8086h
244Eh
2440h
244Bh
2444h
(Hidden)
2445h
2449h
Compaq Deskpro and Evo Personal Computers
Featuring Intel Celeron and Pentium III Processors
Fifth Edition - March 2002
4-5

Compaq Evo D500 Specifications

General

Brand	Compaq
Model	Evo D500
Category	Desktop
Language	English