HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 612

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 13 Watchdog Timer
13.1.2
Figure 13.1 shows a block diagram of the WDT.
Rev.6.00 Sep. 27, 2007 Page 582 of 1268
REJ09B0220-0600
Internal reset signal
Legend:
TCSR:
TCNT:
RSTCSR:
Notes:
(interrupt request
1. The WDTOVF pin function cannot be used in the F-ZTAT versions.
2. Internal reset signal generation is specified by means of a register setting.
Block Diagram
WDTOVF
Timer control/status register
Timer counter
Reset control/status register
signal)
WOVI
*1
*2
RSTCSR
Interrupt
control
Figure 13.1 Block Diagram of WDT
control
Reset
Overflow
Module bus
TCNT
Clock
WDT
select
Clock
TSCR
Internal clock
sources
interface
Bus
φ/2
φ/64
φ/128
φ/512
φ/2048
φ/8192
φ/32768
φ/131072