AMD Geode SC2200, Data Book, Page: 244 / 429

254 AMD Geode™ SC2200 Processor Data Book
Core Logic Module - SMI Status and ACPI Registers - Function 1 32580B
4 EXT_SMI4 SMI Enable. When this bit is asserted, allows EXT_SMI4 to generate an SMI on negative-edge events.
0: Disable.
1: Enable.
Top level SMI status is reported at 00h/02h[10].
Second level SMI status is reported at bits 20 (RC) and 12 (RO).
3 EXT_SMI3 SMI Enable. When this bit is asserted, allow EXT_SMI3 to generate an SMI on negative-edge events.
0: Disable.
1: Enable.
Top level SMI status is reported at 00h/02h[10].
Second level SMI status is reported at bits 19 (RC) and 11 (RO).
2 EXT_SMI2 SMI Enable. When this bit is asserted, allow EXT_SMI2 to generate an SMI on negative-edge events.
0: Disable.
1: Enable.
Top level SMI status is reported at 00h/02h[10].
Second level SMI status is reported at bits 18 (RC) and 10 (RO).
1 EXT_SMI1 SMI Enable. When this bit is asserted, allow EXT_SMI1 to generate an SMI on negative-edge events.
0: Disable.
1: Enable.
Top level SMI status is reported at 00h/02h[10].
Second level SMI status is reported at bits 17 (RC) and 9 (RO).
0 EXT_SMI0 SMI Enable. When this bit is asserted, allow EXT_SMI0 to generate an SMI on negative-edge events.
0: Disable.
1: Enable.
Top level SMI status is reported at 00h/02h[10].
Second level SMI status is reported at bits 16 (RC) and 8 (RO).
Offset 28h-4Fh Not Used Reset Value: 00h
Offset
50h-FFh
The I/O mapped registers located here (I/O Offset 50h-FFh) can also be accessed at F0 Index 50h-FFh. The pre-
ferred method is to program these registers through the F0 register space. Refer to Table 6-29 "F0: PCI Header/Bridge Con-
figuration Registers for GPIO and LPC Support" on page 198 for more information about these registers.
Table 6-33. I/O Offset: SMI Status Registers (Continued)
Bit Description