HD6417750RF240DV Datasheet, PDF (352/1132 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7750 Series

Section 10 Clock Oscillation Circuits
SH7750, SH7750S, SH7750R Group
10.7 Overview of Watchdog Timer
10.7.1 Block Diagram
Figure 10.2 shows a block diagram of the WDT.
Standby
release
Standby
control
Internal reset
request
Reset
control
Interrupt
request
Interrupt
control
WDT
Frequency divider
Clock selection
Overflow
Clock selector
Clock
WTCSR
WTCNT
Standby
mode
Frequency
divider 2 ×1
clock
Bus interface
Legend:
WTCSR: Watchdog timer control/status register
WTCNT: Watchdog timer counter
Figure 10.2 Block Diagram of WDT
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R01UH0456EJ0702 Rev. 7.02
Sep 24, 2013