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SH7708 Datasheet, PDF (197/633 Pages) Renesas Technology Corp – SuperH™ RISC engine | |||
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Bit 6âTimer Mode Select (WT/IT): Selects whether to use the WDT as a watchdog timer or an
interval timer.
Bit 6: WT/IT
Description
0
Use as interval timer
(Initial value)
1
Use as watchdog timer
Note: If WT/IT is modified when the WDT is running, the up-count may not be performed correctly.
Bit 5âReset Select (RSTS): Selects the type of reset when the WTCNT overflows in watchdog
timer mode. In interval timer mode, this setting is ignored.
Bit 5: RSTS
0
1
Description
Power-on reset
Manual reset
(Initial value)
Bit 4âWatchdog Timer Overflow (WOVF): Indicates that the WTCNT has overflowed in
watchdog timer mode. This bit is not set in interval timer mode.
Bit 4: WOVF
0
1
Description
No overflow
WTCNT has overflowed in watchdog timer mode
(Initial value)
Bit 3âInterval Timer Overflow (IOVF): Indicates that the WTCNT has overflowed in interval
timer mode. This bit is not set in watchdog timer mode.
Bit 3: IOVF
0
1
Description
No overflow
WTCNT has overflowed in interval timer mode
(Initial value)
Bits 2 to 0âClock Select 2â0 (CKS2âCKS0): These bits select the clock to be used for the
WTCNT count from the eight types obtainable by dividing the peripheral clock. The overflow
period in the table is the value when the peripheral clock (PÏ) is 15 MHz.
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