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ICH8/ICH9—NVM Information Guide
1.5
ICH9 Extended Configuration
Table 21
area is contained in the Extended Configuration Pointer. Each entry is defined as a
Dword, where the LSBs [15:0] occupy the lower-address word.
Table 21.
NVM Map - Extended Configuration
(relative to base address)
1. N = number of PCIe* Dwords as determined in the Extended PCIe* Length field.
2. M = number of PHY Dwords as determined in the Extended PHY Length field.
3.
L = number of Dock/Undock Dwords as determined in the Extended Dock Length field.
Note:
The extended configuration space in the NVM must not set the PHY reset bit in PHY
Control register (bit 15). If set, the PHY enters an internal initialization loop.
lists the contents of the extended configuration area. The base address for this
Word Address
Used
By
00h
HW
01h
...
HW
(2(N-1))h
HW
(2N-1)h
(2N)h
HW
(2N+1)h
...
HW
(2N+2L-2)h
HW
(2N+2L-1)h
(2N+2L)h
HW
(2N+2L+1)h
...
HW
(2N+4L-2)h
HW
(2N+4L-1)h
15:8
PHY Extended Configuration Dword 0
...
PHY Extended Configuration Dword (N-1)
Dock Extended Configuration Dword 0
...
Dock Extended Configuration Dword (L-1)
Undock Extended Configuration Dword 0
...
Undock Extended Configuration Dword (L-1)
7:0
1
2
3
25
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