AMD SC1200, SC1201 manual Offset 04h-05h, Yes To enable SMI generation, set F0 Index 82h6 =, 240

32579B Core Logic Module - SMI Status and ACPI Registers - Function 1

Table 6-33. F1BAR0+I/O Offset: SMI Status Registers (Continued)

Bit Description

1SMI Source is Audio Subsystem. (Read Only, Read Does Not Clear) Indicates whether or not an SMI was caused by the audio subsystem.

0:No.

1:Yes.

The second level of status is found in F3BAR0+Memory Offset 10h/12h.

0SMI Source is Power Management Event. (Read Only, Read Does Not Clear) Indicates whether or not an SMI was caused by one of the power management resources (except for GP timers, UDEFx and PCI/ISA function traps which are reported in bit 9).

0:No.

1:Yes.

The next level (second level) of SMI status is at F0 Index 84h/F4h-87h/F7h.

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 F1BAR0+I/O Offset 00h/02h[9].

Reading this register does not clear the SMI. For more information, see F1BAR0+I/O Offset 06h.

15:6 Reserved.

5PCI/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.

4SMI 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.

3SMI 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.

2SMI 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.

1SMI 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.

240 AMD Geode™ SC1200/SC1201 Processor Data Book