HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 1222

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Appendix B Internal I/O Registers
TCNT—Timer Counter
RSTCSR—Reset Control/Status Register
Rev.6.00 Sep. 27, 2007 Page 1192 of 1268
REJ09B0220-0600
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 13.2.4, Notes on Register Access.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
:
:
:
:
:
:
Watchdog Timer Overflow Flag
R/(W)*
WOVF
0
1
R/W
7
0
7
0
[Clearing condition]
When 0 is written to WOVF after reading RSTCSR when WOVF = 1
[Setting condition]
When TCNT overflows (changes from H'FF to H'00) during watchdog
timer operation
Note: * The modules in the H8S/2329 and H8S/2328 Groups are
RSTE
Reset Enable
R/W
0
1
R/W
6
0
6
0
Reset signal is not generated if TCNT overflows*
Reset signal is generated if TCNT overflows
not reset, but TCNT and TCSR in WDT are reset.
Reserved
This bit should be written with 0
R/W
R/W
—
5
0
5
0
R/W
—
—
4
1
4
0
H'FFBC (W), H'FFBD (R)
H'FFBE (W), H'FFBF (R)
R/W
—
—
3
1
3
0
R/W
—
—
2
1
2
0
R/W
—
—
1
1
1
0
R/W
—
—
0
1
0
0
WDT
WDT