HD6432345 Datasheet, PDF (411/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

11.1.2 Block Diagram
Figure 11.1 shows a block diagram of the WDT.
WOVI
(interrupt request
signal)
WDTOVF ^*2
Internal reset signal^*1
Interrupt
control
Reset
control
Overflow
Clock
Clock
select
ø/2
ø/64
ø/128
ø/512
ø/2048
ø/8192
ø/32768
ø/131072
Internal clock
sources
RSTCSR
TCNT
TSCR
Module bus
Bus
interface
WDT
Legend
TCSR : Timer control/status register
TCNT : Timer counter
RSTCSR : Reset control/status register
Notes: 1. The type of internal reset signal depends on a register setting. Either power-on reset or manual
reset can be selected.
2. The WDTOVF pin function is not supported by the F-ZTAT version.
Figure 11.1 Block Diagram of WDT
396