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32581C
Table 6-29. F0: PCI Header/Bridge Configuration Registers for GPIO and LPC Support (Continued)
Bit
Description
Index 85h
The bits in this register contain second level status reporting. Top level status is reported in F1BAR0+I/O Offset 00h/02h[0].
This register is called a "Mirror" register since an identical register exists at F0 Index F5h. Reading this register does not clear the status,
while reading its counterpart at F0 Index F5h clears the status at both the second and top levels.
7
Video Idle Timer Timeout. Indicates whether or not an SMI was caused by expiration of Video Idle Timer Count Register
(F0 Index A6h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[7] to 1.
6
User Defined Device Idle Timer 3 Timeout. Indicates whether or not an SMI was caused by expiration of User Defined
Device 3 Idle Timer Count Register (F0 Index A4h).
0: No
1: Yes
To enable SMI generation, set F0 Index 81h[6] to 1.
5
User Defined Device Idle Timer 2 Timeout. Indicates whether or not an SMI was caused by expiration of User Defined
Device 2 Idle Timer Count Register (F0 Index A2h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[5] to 1.
4
User Defined Device Idle Timer 1 Timeout. Indicates whether or not an SMI was caused by expiration of User Defined
Device 1 Idle Timer Count Register (F0 Index A0h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[4] to 1.
3
Keyboard/Mouse Idle Timer Timeout. Indicates whether or not an SMI was caused by expiration of Keyboard/Mouse Idle
Timer Count Register (F0 Index 9Eh).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[3] to 1.
2
Parallel/Serial Idle Timer Timeout. Indicates whether or not an SMI was caused by expiration of Parallel/Serial Port Idle
Timer Count Register (F0 Index 9Ch).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[2] to 1.
1
Floppy Disk Idle Timer Timeout. Indicates whether or not an SMI was caused by expiration of Floppy Disk Idle Timer
Count Register (F0 Index 9Ah).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[1] to 1.
0
Primary Hard Disk Idle Timer Timeout. Indicates whether or not an SMI was caused by expiration of Primary Hard Disk
Idle Timer Count Register (F0 Index 98h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[0] to 1.
206
Core Logic Module - Bridge, GPIO, and LPC Registers - Function 0
Second Level PME/SMI Status Mirror Register 2 (RO)
Reset Value: 00h
AMD Geode™ SC3200 Processor Data Book
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