4.32 General-Purpose Event Status Register

The general-purpose event status register contains status bits that are set when general events occur, and can be programmed to generate general-purpose event signaling through GPE. See Table 4−10 for a complete description of the register contents.

Bit

7

 

6

 

5

4

3

 

2

 

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

 

 

 

 

 

General-purpose event status

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

RCU

RCU

R

RCU

RCU

 

RCU

 

RCU

RCU

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

 

0

 

0

0

0

 

0

 

0

0

 

Register:

General-purpose event status

 

 

 

 

 

 

 

Offset:

88h

 

 

 

 

 

 

 

 

 

 

Type:

Read/Clear/Update, Read-only

 

 

 

 

 

 

 

Default:

00h

 

 

 

 

 

 

 

 

 

 

 

 

Table 4−10. General-Purpose Event Status Register Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIT

SIGNAL

 

TYPE

 

 

 

FUNCTION

 

 

 

 

 

 

 

 

 

7 ‡

PWR_STS

 

RCU

Power change status. This bit is set when software changes the VCC or VPP power state of either socket.

6 ‡

VPP12_STS

 

RCU

12-V VPP request status. This bit is set when software has changed the requested VPP level to or from 12 V

 

for either socket.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

RSVD

 

R

Reserved. This bit returns 0 when read. A write has no effect.

 

 

 

 

 

 

 

 

 

4 ‡

GP4_STS

 

RCU

GPI4 status. This bit is set on a change in status of the MFUNC5 terminal input level if configured as a

 

general-purpose input, GPI4.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 ‡

GP3_STS

 

RCU

GPI3 status. This bit is set on a change in status of the MFUNC4 terminal input level if configured as a

 

general-purpose input, GPI3.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 ‡

GP2_STS

 

RCU

GPI2 status. This bit is set on a change in status of the MFUNC2 terminal input level if configured as a

 

general-purpose input, GPI2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 ‡

GP1_STS

 

RCU

GPI1 status. This bit is set on a change in status of the MFUNC1 terminal input level if configured as a

 

general-purpose input, GPI1.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 ‡

GP0_STS

 

RCU

GPI0 status. This bit is set on a change in status of the MFUNC0 terminal input level if configured as a

 

general-purpose input, GPI0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This bit is cleared only by the assertion of GRST.

4−23

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Texas Instruments PCI7611, PCI7411, PCI7621, PCI7421 General-Purpose Event Status Register, General-purpose event status