SH7763 Datasheet, PDF (1439/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 32 PC Card Controller (PCC)
Bit
Bit Name Initial Value R/W Description
5
P0IREQ 0
R/W PCC0IREQ Request
Indicates the interrupt request for the IREQ pin of the
PC card when the PC card connected to area 6 is the
I/O card interface type. The P0IREQ bit is set to 1
when an interrupt request signal in pulse mode or level
mode is input to the IREQ pin. The mode is selected
by bits 5 and 6 (PCC0IREQ interrupt enable bits) in the
area 6 card status change interrupt enable register
(PCC0CSCIER). This bit can be cleared to 0 only in
pulse mode. Write 0 to bit 5 to clear the bit to 0. This
bit is not changed if 1 is written. In level mode, bit 5 is
a read-only bit which reflects the IREQ pin state (if the
IREQ pin is low, 1 is read). This bit always reads 0 on
the IC memory card interface.
0: No interrupt request on the IREQ pin of the PC card
when the PC card is on the I/O card interface
1: An interrupt request on the IREQ pin of the PC card
has occurred when the PC card is on the I/O card
interface
4
P0SC
0
R/W PCC0 Status Change
Indicates a change in the value of the STSCHG pin of
the PC card when the PC card connected to area 6 is
the I/O card interface type. When the STSCHG pin is
changed from 1 to 0, the SC bit is set to 1. When
STSCHG pin 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.
0: STSCHG pin of the PC card is not changed when the
PC card is on the I/O card interface
1: STSCHG pin of the PC card is changed from 1 to 0
when the PC card is on the I/O card interface
Rev. 1.00 Oct. 01, 2007 Page 1373 of 1956
REJ09B0256-0100