307013-003 Datasheet, PDF (330/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

LAN Controller Registers (B1:D8:F0) (Desktop and Mobile Only)
8.3.1
8.3.2
ASF_RID—ASF Revision Identification Register
(LAN Controller—B1:D8:F0)
Offset Address: E0h
Default Value: ECh
Attribute:
Size:
RO
8 bits
Bit
Description
7:3 ASF ID — RO. Hardwired to 11101 to identify the ASF controller.
2:0 ASF Silicon Revision — RO. This field provides the silicon revision.
SMB_CNTL—SMBus Control Register
(LAN Controller—B1:D8:F0)
Offset Address: E1h
Default Value: 40h
Attribute:
Size:
R/W
8 bits
This register is used to control configurations of the SMBus ports.
Bit
Description
SMBus Remote Control ASF Enable (SMB_RCASF) — R/W.
7 _{0 = Legacy descriptors and operations are used.}
1 = ASF descriptors and operations are used.
SMBus ARP Enable (SMB_ARPEN) — R/W.
6 _{0 = Disable.}
1 = ASF enables the SMBus ARP protocol.
5:4 Reserved
SMBus Drive Low (SMB_DRVLO) — R/W.
3 0 = ASF will not drive the main SMBus signals low while PWR_GOOD = 0.
1 = ASF will drive the main SMBus signals low while PWR_GOOD = 0.
2:0 Reserved
330
Intel ^® ICH7 Family Datasheet