r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1443

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Bit
6, 5
Bit Name
IREQE[1:0] 00
Initial Value R/W
R/W
Description
PCC0IREQ Request Enable
These bits enable or disable IREQ pin interrupt
requests and select the interrupt mode when the PC
card connected to area 6 is the I/O card interface type.
Note that bit 5 (P0IREQ) in the area 6 card status
change register (PCC0CSCR) is cleared if the values in
bits 6 and 5 in this register are changed. These bits
have no meaning on the IC memory card interface.
00: IREQ requests are not accepted for the PC card
01: The level-mode IREQ interrupt request signal is
10: The pulse-mode IREQ interrupt request signal is
11: The pulse-mode IREQ interrupt request signal is
connected to area 6. Bit 5 in the status change
register (PCC0CSCR) functions as a read-only bit
that indicates the inverse of the IREQ pin signal.
accepted for the PC card connected to area 6. In
level mode, an interrupt occurs when level 0 of the
signal input from the IREQ pin is detected.
accepted for the PC card connected to area 6. In
pulse mode, an interrupt occurs when a falling edge
from 1 to 0 of the signal input from the IREQ pin is
detected.
accepted for the PC card connected to area 6. In
pulse mode, an interrupt occurs when a rising edge
from 0 to 1 of the signal input from the IREQ pin is
detected.
Rev. 1.00 Oct. 01, 2007 Page 1377 of 1956
Section 32 PC Card Controller (PCC)
REJ09B0256-0100