SH7720 Datasheet, PDF (532/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 12 Watchdog Timer (WDT)
Figures 12.1 shows a block diagram of the WDT.
Standby
cancellation
Internal
reset
request
Interrupt
request
Standby
control
WDT
Reset
control
Interrupt
control
Clock selection
Overflow
Divider
Clock selector
Clock
WTCSR
WTCNT
Bus interface
Standby
mode
Peripheral
clock
[Legend]
WTCSR: Watchdog timer control/status register
WTCNT: Watchdog timer counter
Figure 12.1 Block Diagram of WDT
Rev. 3.00 Jan. 18, 2008 Page 470 of 1458
REJ09B0033-0300