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H838532H bảng dữ liệu(PDF) 92 Page - Renesas Technology Corp

tên linh kiện H838532H
Giải thích chi tiết về linh kiện  16-Bit Single-Chip Microcomputer H8 Family / H8/300H Super Low Power Series
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
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H838532H bảng dữ liệu(HTML) 92 Page - Renesas Technology Corp

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Section 3 Exception Handling
Rev. 1.00 May 30, 2008 Page 72 of 484
REJ09B0436-0100
(6) Wakeup Interrupt Request Register (IWPR)
Bit
Initial value
Read/Write
7
IWPF7
0
R/W
6
IWPF6
0
R/W
5
IWPF5
0
R/W
4
IWPF4
0
R/W
3
IWPF3
0
R/W
0
IWPF0
0
R/W
2
IWPF2
0
R/W
1
IWPF1
0
R/W
**
*
*
*
*
**
Note: * Only a write of 0 for flag clearing is possible
IWPR is an 8-bit read/write register containing wakeup interrupt request flags. When one of pins
WKP
7 to WKP0 is designated for wakeup input and a rising or falling edge is input at that pin, the
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
Description
0
Clearing condition:
(initial value)
When IWPFn= 1, it is cleared by writing 0
1
Setting condition:
When pin
WKP
n is designated for wakeup input and a rising or falling edge is input
at that pin
(n = 7 to 0)
(7) Wakeup Edge Select Register (WEGR)
Bit
Initial value
Read/Write
7
WKEGS7
0
R/W
6
WKEGS6
0
R/W
5
WKEGS5
0
R/W
4
WKEGS4
0
R/W
3
WKEGS3
0
R/W
0
WKEGS0
0
R/W
2
WKEGS2
0
R/W
1
WKEGS1
0
R/W
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.



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