Intel D15343-003 - Manual (Page 47)

Register Description
D15343-003 47
4.6.2 CONFIG_DATA – Configuration Data Register
CONFIG_DATA is a 32-bit Read/Write window into Configuration Space. The portion of
Configuration Space that is referenced by CONFIG_DATA is determined by the contents of
CONFIG_ADDRESS.
I/O Address:
Default Value:
Access:
Size: 0CFCh
00000000h
Read/Write
32 bits
Figure 3. Configuration Data Register
31 0 Bit
Default
0
Configuration Data Window
Bit Descriptions
31:0 Configuration Data Window (CDW). If bit 31 of CONFIG_ADDRESS is 1, then any I/O access
to the CONFIG_DATA register will be mapped to Configuration Space using the contents of
CONFIG_ADDRESS.