hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 142

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 3 Exception Handling
6. Wakeup Interrupt Request Register (IWPR)
Note:
IWPR is an 8-bit read/write register containing wakeup interrupt request flags. When one of pins
WKP
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
7. Wakeup Edge Select Register (WEGR)
WEGR is an 8-bit read/write register that specifies rising or falling edge sensing for pins WKPn.
WEGR is initialized to H'00 by a reset.
Rev. 6.00 Aug 04, 2006 page 106 of 680
REJ09B0145-0600
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
7
to WKP
* All bits can only be written with 0, for flag clearing.
Clearing condition:
When IWPFn= 1, it is cleared by writing 0
Setting condition:
When pin WKPn is designated for wakeup input and a rising or falling edge is input
at that pin
Description
0
is designated for wakeup input and a rising or falling edge is input at that pin, the
WKEGS7
R/(W) *
IWPF7
R/W
7
0
7
0
WKEGS6
IWPF6
R/(W) *
R/W
6
0
6
0
WKEGS5
R/(W) *
IWPF5
R/W
5
0
5
0
WKEGS4
IWPF4
R/(W) *
R/W
4
0
4
0
WKEGS3
R/(W) *
IWPF3
R/W
3
0
3
0
WKEGS2
R/(W) *
IWPF2
R/W
2
0
2
0
WKEGS1
IWPF1
R/(W) *
R/W
1
0
1
0
(initial value)
WKEGS0
(n = 7 to 0)
IWPF0
R/(W) *
R/W
0
0
0
0