SC1200UFH-266BF 33 AMD (ADVANCED MICRO DEVICES), SC1200UFH-266BF 33 Datasheet - Page 221
SC1200UFH-266BF 33
Manufacturer Part Number
SC1200UFH-266BF 33
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.SC1200UFH-266BF_33.pdf
(443 pages)
Specifications of SC1200UFH-266BF 33
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Core Logic Module - Bridge, GPIO, and LPC Registers - Function 0
AMD Geode™ SC1200/SC1201 Processor Data Book
Index F6h
The bits in this register contain second level status reporting. Top level status is reported in F1BAR0+I/O Offset 00h/02h[0].
Reading this register clears the status at both the second and top levels.
A read-only “Mirror” version of this register exists at F0 Index 86h. If the value of the register must be read without clearing the SMI
source (and consequently de-asserting SMI), F0 Index 86h can be read instead.
Table 6-29. F0: PCI Header/Bridge Configuration Registers for GPIO and LPC Support (Continued)
Bit
4
3
2
1
0
7
6
5
4
Description
User Defined Device Idle Timer 1 (UDEF1) SMI Status. Indicates whether or not an SMI was caused by expiration of User
Defined Device 1 (UDEF1) Idle Timer Count Register (F0 Index A0h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[4] = 1.
Keyboard/Mouse Idle Timer SMI Status. 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] = 1.
Parallel/Serial Idle Timer SMI Status. 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] = 1.
Floppy Disk Idle Timer SMI Status. 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] = 1.
Hard Disk Idle Timer SMI Status. Indicates whether or not an SMI was caused by expiration of Hard Disk Idle Timer Count
Register (F0 Index 98h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 81h[0] = 1.
Video Access Trap SMI Status. Indicates whether or not an SMI was caused by a trapped I/O access to the Video I/O Trap.
0: No.
1: Yes.
To enable SMI generation, set F0 Index 82h[7] = 1.
Reserved. Reads as 0.
Secondary Hard Disk Access Trap SMI Status. Indicates whether or not an SMI was caused by a trapped I/O access to
the secondary hard disk.
0: No.
1: Yes.
To enable SMI generation, set F0 Index 83h[6] = 1.
Secondary Hard Disk Idle Timer SMI Status. Indicates whether or not an SMI was caused by expiration of Secondary
Hard Disk Idle Timer Count register (F0 Index ACh).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 83h[7] = 1.
Second Level PME/SMI Status Register 3 (RC)
32579B
Reset Value: 00h
221
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