cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 301

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
DIVIL Register Descriptions
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
63:48
Bit
47
46
45
44
43
42
41
40
39
Name
RSVD
PM1_CNT_SSMI_
FLAG
PM2_CNT_SSMI_
FLAG
KEL_A20_ASMI_
FLAG
DMA_SSMI_
FLAG
LPC_SSMI_FLAG
RSVD
UART2_SSMI_
FLAG
UART1_SSMI_
FLAG
PORTA_INIT_
ASMI_FLAG
RSVD
RSVD
Description
Reserved. Reads return 0. Writes have no effect.
Power Management 1 Control Register SSMI Flag. If high, records that an SSMI was
generated on a write to PM1_CNT (ACPI I/O Offset 08h). Write 1 to clear; writing 0 has
no effect. PM1_CNT_SSMI_EN (bit 15) must be high to generate SSMI and set flag.
Power Management 2 Control Register SSMI Flag. If high, records that an SSMI was
generated on a write to PM2_CNT (ACPI I/O Offset 0Ch). Write 1 to clear; writing 0 has
no effect. PM2_CNT_SSMI_EN (bit 14) must be high to generate SSMI and set flag.
KEL Gate A20 ASMI Flag. If high, records that an ASMI was generated in the KEL due
to keyboard gate A20 signal change. Write 1 to clear; writing 0 has no effect.
KELA20_ASMI_EN (bit 13) must be high to generate ASMI and set flag.
DMA SSMI Flag. If high, records that an SSMI was generated on the 8237s during
DMA. Write 1 to clear; writing 0 has no effect. DMA_SSMI_EN (bit 12) must be high to
generate SSMI and set flag. (Also see Section 5.6.2.14 "Access Control DMA Request
(DIVIL_AC_DMA)" on page 318.)
LPC SSMI Flag. If high, records that an SSMI was generated on the LPC during DMA.
Write 1 to clear; writing 0 has no effect. LPC_SSMI_EN (bit 11) must be high to gener-
ate SSMI and set flag. (Also see Section 5.6.2.14 "Access Control DMA Request
(DIVIL_AC_DMA)" on page 318.)
Reserved. Reads return 0. Writes have no effect.
UART2 SSMI Flag. If high, records that an SSMI was generated on UART2 during
DMA. Write 1 to clear; writing 0 has no effect. UART2_SSMI_EN (bit 9) must be high to
generate SSMI and set flag. (Also see Section 5.6.2.14 "Access Control DMA Request
(DIVIL_AC_DMA)" on page 318.)
UART1 SSMI Flag. If high, records that an SSMI was generated on UART1 during
DMA. Write 1 to clear; writing 0 has no effect. UART1_SSMI_EN (bit 8) must be high to
generate SSMI and set flag. (Also see Section 5.6.2.14 "Access Control DMA Request
(DIVIL_AC_DMA)" on page 318.)
Port A INIT ASMI Flag. If high, records that an ASMI was generated in the KEL due to
an INIT on Port A (092h). Write 1 to clear; writing 0 has no effect.
PORTA_INIT_ASMI_EN (bit 7) must be high to generate ASMI and set flag.
DIVIL_GLD_MSR_SMI Bit Descriptions
DIVIL_GLD_MSR_SMI Register Map
(Continued)
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