HD6433935 Hitachi, HD6433935 Datasheet - Page 83
HD6433935
Manufacturer Part Number
HD6433935
Description
8-Bit MICROCONTROLLER
Manufacturer
Hitachi
Datasheet
1.HD6433935.pdf
(521 pages)
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Bit 1: Timer C interrupt request flag (IRRTC)
Bit 1
IRRTC
0
1
Bit 0: Reserved bit
Bit 0 is reserved: it is always read as 0 and cannot be modified.
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
Bit
Initial value
Read/Write
7
to WKP
*
All bits can only be written with 0, for flag clearing.
Description
Clearing conditions:
When IRRTC= 1, it is cleared by writing 0
Setting conditions:
When the timer C counter value overflows (from H'FF to H'00) or underflows
(from H'00 to H'FF)
Description
Clearing conditions:
When IWPFn= 1, it is cleared by writing 0
Setting conditions:
When pin WKP
that pin
0
is designated for wakeup input and a rising or falling edge is input at that pin, the
R/(W) *
IWPF7
7
0
IWPF6
R/(W) *
n
6
0
is designated for wakeup input and a rising or falling edge is input at
R/(W) *
IWPF5
5
0
IWPF4
R/(W) *
4
0
R/(W) *
IWPF3
3
0
R/(W) *
IWPF2
2
0
R/(W) *
IWPF1
1
0
(initial value)
(initial value)
(n = 7 to 0)
IWPF0
R/(W) *
0
0
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