TMPR4937 datasheet(304/552 Pages) TOSHIBA

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Chapter 10 PCI Controller

10-46

10.4.20 P2G Status Register (P2GSTATUS)

0xD094

Reserved

PMSC PMEES PMECLR M66EN IOBFE IIBFE TOBFE TIBFE Reserved

R/W1C R/W1C R/W1C

: Type

0x0

0x1

: Initial value

Reserved

: Type

: Initial value

Bit

Mnemonic

Field Name

Description

Read/Write

31:25

Reserved

⎯

PMSC

PM State Change

Detected

Power Management State Change (Default: 0x0)

“1” is set to this bit when the PowerState field of the Power Management

This bit is cleared to “0” when a “1” is written to it. This bit is only valid when

the PCI Controller is in the Satellite mode.

R/W1C

PMEES

PME_En Set

Detected

PME_En Set (Default: 0x0)

This bit is set to “1” when the PME_En bit of the PMCSR Register is set to

“1”. When this bit is set, it indicates that the PCI Master (Host) device

enabled PME* signal output.

1: Indicates that the PME_En bit is set.

0: Indicates that the PME_En bit is not set.

This bit is cleared to “0” when a “1” is written to it. This bit is only valid when

the PCI Controller is in the Satellite mode.

R/W1C

PMECLR

PME Status Clear

Detected

PME_Status Clear (Default: 0x0)

This bit indicates that the PME_Status bit of the PMCSR Register was

cleared.

1: Indicates that the PME_Status bit was cleared.

0: Indicates that the PME_Status bit was not cleared.

This bit is cleared to “0” when a “1” is written to it. This bit is only valid when

the PCI Controller is in the Satellite mode.

R/W1C

M66EN

66 MHz Drive

Status

M66EN Status (Default: 0x0)

This bit indicates the current status of the M66EN signal. This bit can only

be read. Writes to this bit are invalid.

1: The M66EN signal is asserted.

0: The M66EN signal is deasserted.

IOBFE

Initiator Out-

Bound FIFO

Empty

Initiator Out-Bound FIFO Empty (Default: 0x1)

1: Indicates that the Initiator Out-Bound FIFO is empty.

0: Indicates that the Initiator Out-Bound FIFO is not empty.

This is a diagnostic function.

IIBFE

Initiator In-Bound

FIFO Empty

Initiator In-Bound FIFO Empty (Default: 0x1)

1: Indicates that the Initiator In-Bound FIFO is empty.

0: Indicates that the Initiator In-Bound FIFO is not empty.

This is a diagnostic function.

TOBFE

Target Out-Bound

FIFO Empty

Target Out-Bound FIFO Empty (Default: 0x1)

1: Indicates that the Target Out-Bound FIFO is empty.

0: Indicates that the Target Out-Bound FIFO is not empty.

This is a diagnostic function.

TIBFE

Target In-Bound

FIFO Empty

Target In-Bound FIFO Empty (Default: 0x1)

1: Indicates that the Target In-Bound FIFO is empty.

0: Indicates that the Target In-Bound FIFO is not empty.

This is a diagnostic function.

16:0

Reserved

⎯

Figure 10.4.18 P2G Status Reigster

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