HD6412350 Hitachi, HD6412350 Datasheet - Page 912

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

TCNT—Timer Counter
RSTCSR—Reset Control/Status Register
892
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Note: * Can only be written with 0 for flag clearing.
The method for writing to RSTCSR is different from that for general registers to prevent
accidental overwriting. For details see section 12.2.4, Notes on Register Access.
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:
:
:
:
:
Watchdog Timer Overflow Flag
R/(W)*
WOVF
0
1
R/W
7
0
7
0
[Clearing condition]
Cleared by reading TCSR when WOVF = 1, then writing 0 to WOVF
[Setting condition]
Set when TCNT overflows (changed from H'FF to H'00) during
watchdog timer operation
Note: * The modules H8S/2350 Series are not reset, but TCNT
RSTE
Reset Enable
R/W
R/W
0
1
6
0
6
0
Reset signal is not generated if TCNT overflows*
Reset signal is generated if TCNT overflows
and TCSR in WDT are reset.
Reset Select
RSTS
R/W
0
1
R/W
5
0
5
0
Power-on reset
Manual reset
R/W
4
0
—
—
4
1
H'FFBC (W) H'FFBD (R)
H'FFBE (W) H'FFBF (R)
R/W
3
0
—
—
3
1
R/W
2
0
—
—
2
1
R/W
1
0
—
—
1
1
R/W
0
0
—
—
0
1
WDT
WDT