Intel 6 SERIES CHIPSET - DATASHEET 01-2011 - Page 656

EHCI Controller Registers (D29:F0, D26:F0)
656 Datasheet
15
SMI on BAR Enable — R/W.
0 = Disable.
1 = Enable. When this bit is 1 and SMI on BAR (D29:F0, D26:F0:6Ch, bit 31) is 1, then
the host controller will issue an SMI.
14
SMI on PCI Command Enable — R/W.
0 = Disable.
1 = Enable. When this bit is 1 and SMI on PCI Command (D29:F0, D26:F0:6Ch, bit 30)
is 1, then the host controller will issue an SMI.
13
SMI on OS Ownership Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1 AND the OS Ownership Change bit (D29:F0,
D26:F0:6Ch, bit 29) is 1, the host controller will issue an SMI.
12:6 Reserved
5
SMI on Async Advance Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the SMI on Async Advance bit (D29:F0,
D26:F0:6Ch, bit 21) is a 1, the host controller will issue an SMI immediately.
4
SMI on Host System Error Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the SMI on Host System Error (D29:F0,
D26:F0:6Ch, bit 20) is a 1, the host controller will issue an SMI.
3
SMI on Frame List Rollover Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the SMI on Frame List Rollover bit (D29:F0,
D26:F0:6Ch, bit 19) is a 1, the host controller will issue an SMI.
2
SMI on Port Change Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the SMI on Port Change Detect bit (D29:F0,
D26:F0:6Ch, bit 18) is a 1, the host controller will issue an SMI.
1
SMI on USB Error Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the SMI on USB Error bit (D29:F0, D26:F0:6Ch,
bit 17) is a 1, the host controller will issue an SMI immediately.
0
SMI on USB Complete Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the SMI on USB Complete bit (D29:F0,
D26:F0:6Ch, bit 16) is a 1, the host controller will issue an SMI immediately.
Bit Description