HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 440
HD6433045
Manufacturer Part Number
HD6433045
Description
Hitachi Single-Chip Microcomputer
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet
1.HD6433045.pdf
(867 pages)
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Bit 7—Watchdog Timer Reset (WRST): During watchdog timer operation, this bit indicates that
TCNT has overflowed and generated a reset signal. This reset signal resets the entire chip
internally. If bit RSTOE is set to 1, this reset signal is also output (low) at the RESO pin to
initialize external system devices.
Bit 7
WRST
0
1
Bit 6—Reset Output Enable (RSTOE): Enables or disables external output at the RESO pin of
the reset signal generated if TCNT overflows during watchdog timer operation.
Bit 6
RSTOE Description
0
1
Bits 5 to 0—Reserved: Read-only bits, always read as 1.
Description
[Clearing conditions]
Cleared to 0 by reset signal input at RES pin
Cleared by reading WRST when WRST = 1, then writing 0 in WRST
[Setting condition]
Set when TCNT overflow generates a reset signal during watchdog timer operation
Reset signal is not output externally
Reset signal is output externally
428
(Initial value)
(Initial value)
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