572
15.2.3
Reset Control/Status Register (RSTCSR)
Bit
:
7
6
5
4
3
2
1
0
WOVF
RSTE
RSTS
—
—
—
—
—
Initial value :
0
0
0
1
1
1
1
1
R/W
:
R/(W)
*
R/W
R/W
—
—
—
—
—
Note:
*
Only 0 can be written, for flag clearing.
RSTCSR is an 8-bit readable/writable* register that controls the generation of the internal reset
signal when TCNT overflows, and selects the type of internal reset signal.
RSTCSR is initialized to H'1F by a reset signal from the
RES
pin, but not by the WDT internal
reset signal caused by overflows.
Note: * RSTCSR is write-protected by a password to prevent accidental overwriting. For details
see section 15.2.5, Notes on Register Access.
Bit 7—Watchdog Overflow Flag (WOVF): Indicates that TCNT has overflowed (changed from
H'FF to H'00) during watchdog timer operation. This bit is not set in interval timer mode.
Bit 7
WOVF
Description
0
[Clearing condition]
(Initial value)
Cleared by reading TCSR when WOVF = 1, then writing 0 to WOVF
1
[Setting condition]
Set when TCNT overflows (changed from H'FF to H'00) during watchdog timer
operation
Bit 6—Reset Enable (RSTE): Specifies whether or not a reset signal is generated in the
H8S/2633 Series if TCNT overflows during watchdog timer operation.
Bit 6
RSTE
Description
0
Reset signal is not generated if TCNT overflows
*
(Initial value)
1
Reset signal is generated if TCNT overflows
Note:
*
The modules within the H8S/2633 Series are not reset, but TCNT and TCSR within the
WDT are reset.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...