HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1031

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

29.3.3
PCC0CSCR is an 8-bit readable/writable able register. PCC0CSCR bits are set to 1 by interrupt
sources of the PC card connected to area 6 (only bit 7 can be set to 1 as required). PCC0CSCR is
initialized by a power-on reset but retains its value in a manual reset and in software standby
mode.
Bit
7
6
5
Bit Name
P0SCDI

P0IREQ
Area 6 Card Status Change Register (PCC0CSCR)
0
Initial Value
0
0
R/W
R/W

R/W
Description
PCC0 Software Card Detect Change Interrupt
A PCC0 software card detect change interrupt can be generated
by writing 1 to this bit. When this bit is set to 1, the same interrupt
as the PCC0 card detect change interrupt (bit 3 set status) occurs
if bit 3 (PCC0 card detect change enable) in the area 6 card
status change interrupt enable register (PCC0CSCIER) is set to
1. If bit 3 is cleared to 0, no interrupt occurs.
0: No software card detect change interrupt occurs for the PC
1: Software card detect change interrupt occurs for the PC card
Reserved
This bit is always read as 0. The write value should always be 0.
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. 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 state (if the IREQ is low, 1 is read). This bit always reads 0
on the IC memory card interface.
0: No interrupt request on the IREQ of the PC card when the PC
1: An interrupt request on the IREQ of the PC card has occurred
card connected to area 6
card is on the I/O card interface
when the PC card is on the I/O card interface
connected to area 6
Rev. 3.00 Jan. 18, 2008 Page 969 of 1458
Section 29
PC Card Controller (PCC)
REJ09B0033-0300