AMD Geode™ SC2200 Processor Data Book
249
Core Logic Module - SMI Status and ACPI Registers - Function 1
32580B
Offset 04h-05h
Second Level General Traps & Timers
Reset Value: 0000h
PME/SMI Status Mirror Register (RO)
The bits in this register contain second level status reporting. Top level status is reported at I/O Offset 00h/02h[9].
Reading this register does not clear the SMI. For more information, see I/O Offset 06h.
15:6
Reserved.
5
PCI/ISA Function Trap.
Indicates whether or not an SMI was caused by a trapped PCI/ISA configuration cycle.
0: No.
1: Yes.
To enable SMI generation for:
— Trapped access to ISA Legacy I/O register space set F0 Index 41h[0] = 1.
— Trapped access to F1 register space set F0 Index 41h[1] = 1.
— Trapped access to F2 register space set F0 Index 41h[2] = 1.
— Trapped access to F3 register space set F0 Index 41h[3] = 1.
— Trapped access to F4 register space set F0 Index 41h[4] = 1.
— Trapped access to F5 register space set F0 Index 41h[5] = 1.
4
SMI Source is Trapped Access to User Defined Device 3.
Indicates whether or not an SMI was caused by a trapped I/O
or memory access to the User Defined Device 3 (F0 Index C8h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 82h[6] = 1.
3
SMI Source is Trapped Access to User Defined Device 2.
Indicates whether or not an SMI was caused by a trapped I/O
or memory access to the User Defined Device 2 (F0 Index C4h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 82h[5] = 1.
2
SMI Source is Trapped Access to User Defined Device 1.
Indicates whether or not an SMI was caused by a trapped I/O
or memory access to the User Defined Device 1 (F0 Index C0h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 82h[4] = 1.
1
SMI Source is Expired General Purpose Timer 2.
Indicates whether or not an SMI was caused by the expiration of Gen-
eral Purpose Timer 2 (F0 Index 8Ah).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 83h[1] = 1.
0
SMI Source is Expired General Purpose Timer 1.
Indicates whether or not an SMI was caused by the expiration of Gen-
eral Purpose Timer 1 (F0 Index 88h).
0: No.
1: Yes.
To enable SMI generation, set F0 Index 83h[0] = 1.
Table 6-33. I/O Offset: SMI Status Registers (Continued)
Bit
Description
Summary of Contents for Geode SC2200
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Page 350: ...366 AMD Geode SC2200 Processor Data Book Debugging and Monitoring 32580B...
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