SH7721 datasheet(1032/1524 Pages) RENESAS

1032 / 1524 page

Section 29

PC Card Controller (PCC)

Rev. 3.00 Jan. 18, 2008 Page 970 of 1458

REJ09B0033-0300

Bit

Bit Name

Initial Value

R/W

Description

P0SC

R/W

PCC0 Status Change

Indicates a change in the value of the

STSCHG of the PC card

when the PC card connected to area 6 is the I/O card interface

type. When the

STSCHG is changed from 1 to 0, the P0SC bit

is set to 1. When

STSCHG is not changed, the P0SC bit

remains at 0. Write 0 to bit 4 when this bit is set to 1 in order to

clear this bit to 0. This bit is not changed if 1 is written. This bit

always reads 0 on the IC memory card interface.

STSCHG of the PC card is not changed when the PC card

is on the I/O card interface

STSCHG of the PC card is changed from 1 to 0 when the

PC card is on the I/O card interface

P0CDC

R/W

PCC0 Card Detect Change

Indicates a change in the value of the

CD1 and CD2 in the PC

card connected to area 6. When the

CD1 and CD2 values are

changed, the P0CDC bit is set to 1. When the values are not

changed, the P0CDC bit remains at 0. Write 0 to bit 3 in order

to clear this bit to 0. This bit is not changed if 1 is written.

CD1 and CD2 in the PC card are not changed

CD1 and CD2 in the PC card are changed

P0RC

R/W

PCC0 Ready Change

Indicates a change in the value of the RDY/

BSY of the PC

card when the PC card connected to area 6 is the IC memory

card interface type. When the RDY/

BSY is changed from 0 to

1, the P0RC bit is set to 1. When the RDY/

BSY is not

changed, the P0RC bit remains at 0. Write 0 to bit 2 in order to

clear this bit to 0. This bit is not changed if 1 is written. This bit

always reads 0 on the I/O card interface.

0: RDY/

BSY in the PC card is not changed when the PC card

is on the IC memory card interface

1: RDY/

BSY in the PC card is changed from 0 to 1 when the

PC card is on the IC memory card interface

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