r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 852

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 14 Watchdog Timer (WDT)
14.2
Table 14.1 shows the WDT pin configuration.
Table 14.1 Pin Configuration
Rev. 1.00 Sep. 19, 2008 Page 824 of 1270
REJ09B0466-0100
Name
Watchdog timer overflow
Input/Output Pin
Internal reset signal*
(interrupt request
Legend:
TCSR
TCNT
RSTCSR
Note: * An internal reset signal can be generated by the register setting.
WDTOVF
signal)
WOVI
: Timer control/status register
: Timer counter
: Reset control/status register
Figure 14.1 Block Diagram of WDT
Symbol
WDTOVF
RSTCSR
Interrupt
control
control
Reset
I/O
Output
Overflow
Module bus
TCNT
Clock
Function
Outputs counter overflow signal in watchdog
timer mode
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