hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 131

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Wakeup Interrupt Request Register (IWPR)
IWPR is an 8-bit read/write register containing wakeup interrupt request flags. When one of pins
W K P
corresponding flag in IWPR is set to 1. A flag is not cleared automatically when the
corresponding interrupt is accepted. Flags must be cleared by writing 0.
Bits 7 to 0—Wakeup Interrupt Request Flags (IWPF7 to IWPF0)
Bit n
IWPFn
0
1
Bit
Initial value
Read/Write
Note: * Only a write of 0 for flag clearing is possible
7
to
W K P
Description
Clearing conditions:
When IWPFn= 1, it is cleared by writing 0
Setting conditions:
When pin
that pin
0
is designated for wakeup input and a rising or falling edge is input at that pin, the
IWPF7
R/(W) *
7
0
W K P
IWPF6
R/(W) *
n
is designated for wakeup input and a rising or falling edge is input at
6
0
R/(W) *
IWPF5
5
0
R/(W) *
IWPF4
4
0
IWPF3
R/(W) *
Rev. 7.00 Mar 10, 2005 page 89 of 652
3
0
R/(W) *
IWPF2
Section 3 Exception Handling
2
0
R/(W) *
IWPF1
REJ09B0042-0700
1
0
(initial value)
(n = 7 to 0)
IWPF0
R/(W) *
0
0