SH7280 Datasheet, PDF (766/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 15 Watchdog Timer (WDT)
Figure 15.1 shows a block diagram of the WDT.
Interrupt
request
WDTOVF
Internal reset
request*
Interrupt
control
Reset
control
WRCSR
WDT
Clock selection
Divider
Clock selector
Overflow
Clock
WTCSR
WTCNT
Peripheral
clock
Bus interface
[Legend]
WTCSR:
WTCNT:
WRCSR:
Watchdog timer control/status register
Watchdog timer counter
Watchdog reset control/status register
Note: * The internal reset signal can be generated by making a register setting.
Figure 15.1 Block Diagram of WDT
Rev. 1.00 Jun. 26, 2008 Page 736 of 1692
REJ09B0393-0100