32580B

SuperI/O Module

 

 

 

 

 

 

Table 5-29. Banks 0 and 1 - Common Control and Status Registers

 

 

 

 

Bit

Description

 

 

 

 

 

Offset 00h

 

Wakeup Events Status Register - WKSR (R/W1C)

Reset Value: 00h

This register is set to 00h on power-up of VPP or software reset. It indicates which wakeup event and/or PME occurred. (See Section

6.2.9.4 "Power Management Events" on page 168.)

 

 

 

 

7

Reserved.

 

 

 

 

6

Reserved. Must be set to 0.

 

 

 

 

5

IRRX1 (CEIR) Event Status. This sticky bit shows the status of the CEIR event detection.

 

 

0: Event not detected. (Default)

 

 

1:

Event detected.

 

 

 

 

4:2

Reserved.

 

 

 

 

1

RI2# Event Status. This sticky bit shows the status of RI2# event detection.

 

 

0: Event not detected. (Default)

 

 

1:

Event detected.

 

 

 

 

0

SDATA_IN2 Event Status. This sticky bit shows the status of Audio Codec event detection.

 

 

0: Event not detected. (Default)

 

 

1:

Event detected.

 

 

 

 

 

Offset 01h

 

Wakeup Events Control Register - WKCR (R/W)

Reset Value: 03h

This register is set to 03h on power-up of VPP or software reset. Detected wakeup events that are enabled issue a power-up request the

ACPI controller and/or a PME to the Core Logic module. (See Section 6.2.9.4 "Power Management Events" on page 168.)

 

 

 

7

Reserved.

 

 

 

 

6

Reserved. Must be set to 0.

 

 

 

 

5

IRRX1 (CEIR) Event Enable.

 

 

0:

Disable. (Default)

 

 

1:

Enable.

 

 

 

 

4:2

Reserved.

 

 

 

 

1

RI2# Event Enable.

 

 

0:

Disable.

 

 

1:

Enable. (Default)

 

 

 

 

0

SDATA_IN2 Event Enable.

 

 

0:

Disable.

 

 

1:

Enable. (Default)

 

 

 

 

 

Offset 02h

 

Wakeup Configuration Register - WKCFG (R/W)

Reset Value: 00h

This register is set to 00h on power-up of VPP or software reset. It enables access to CEIR registers.

 

 

 

 

7:5

Reserved.

 

 

 

 

4

Reserved. Must be set to 0.

 

 

 

 

3

Reserved. Must be set to 0.

 

 

 

 

2

Reserved.

 

 

 

 

1:0

Configuration Bank Select Bits.

 

 

00: Only shared registers are accessible.

 

 

01: Shared registers and Bank 1 (CEIR) registers are accessible.

 

 

10: Bank selected.

 

 

11: Reserved.

 

 

 

 

 

124

AMD Geode™ SC2200 Processor Data Book

Page 118
Image 118
AMD SC2200 manual Banks 0 and 1 Common Control and Status Registers