SH7721 datasheet(1025/1524 Pages) RENESAS

1025 / 1524 page

Section 29

PC Card Controller (PCC)

Rev. 3.00 Jan. 18, 2008 Page 963 of 1458

REJ09B0033-0300

29.3

PCC has the following registers.

• Area 6 interface status register (PCC0ISR)

• Area 6 general control register (PCC0GCR)

• Area 6 card status change register (PCC0CSCR)

• Area 6 card status change interrupt enable register (PCC0CSCIER)

29.3.1

Area 6 Interface Status Register (PCC0ISR)

PCC0ISR is an 8-bit read-only register, which is used to read the status of the PC card connected

to area 6. The initial value of PCC0ISR depends on the PC card status.

Bit

Bit Name

Initial Value R/W

Description

P0RDY/

IREQ

Undefined*

PCC0 Ready

The value on the RDY/

BSY pin of the PC card

connected to area 6 is read when the IC memory card

interface is connected. The value of

IREQ pin of the PC

card connected to area 6 is read when the I/O card

interface is connected. This bit cannot be written to.

0: Indicates that the value of RDY/

BSY pin is 0 when

the PC card connected to area 6 is an IC memory

card interface type. The value of

IREQ pin is 0 when

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

interface type.

1: Indicates that the value of RDY/

BSY pin is 1 when

the PC card connected to area 6 is the IC memory

card interface type. The value of

IREQ pin is 1 when

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

interface type.

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