SH7721 datasheet(1028/1524 Pages) RENESAS

1028 / 1524 page

Section 29

PC Card Controller (PCC)

Rev. 3.00 Jan. 18, 2008 Page 966 of 1458

REJ09B0033-0300

29.3.2

Area 6 General Control Register (PCC0GCR)

PCC0GCR is an 8-bit readable/writable register, which controls the external buffer, resets, address

A25 and A24 pins, and

REG pin, and sets the PC card type for the PC card connected to area 6.

PCC0GCR is initialized by a power-on reset but retains its value in a manual reset and in software

standby mode.

Bit

Bit Name

Initial Value R/W

Description

P0DRVE

R/W

PCC0 Buffer Control

Controls the external buffer for the PC card connected

to area 6.

0: High-level setting for control

PCC_DRV pin of the

external buffer for the PC card connected to area 6

1: Low-level setting for control

PCC_DRV pin of the

external buffer for the PC card connected to area 6

P0PCCR

R/W

PCC0 Card Reset

Controls resets for the PC card connected to area 6.

0: Low-level setting for reset PCC_RESET pin for the

PC card connected to area 6

1: High-level setting for reset PCC_RESET pin for the

PC card connected to area 6

P0PCCT

R/W

PCC0 Card Type

Specifies the type of the PC card connected to area 6.

Cleared to 0 when the PC card is the IC memory card

interface type; set to 1 when the PC card is the I/O card

interface type.

0: The PC card connected to area 6 is handled as the

IC memory card interface type

1: The PC card connected to area 6 is handled as the

I/O card interface type

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