M32C8A Datasheet, PDF (134/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
12. Watchdog Timer
CPU clock
Wait mode signal
HOLD
Prescaler
1/16
1/128
1/2
CM07=0
WDC7=0
CM07=0
WDC7=1
CM07=1
On-chip oscillator clock
Write signal to the WDTS register
Internal reset signal
CM06, CM07: bits in the CM0 register
WDC7: bit in the WDC register
PM22: bit in the PM2 register
D43: bit in the D4INT register
PM22
0
1
CM06 _{0 Watchdog timer interrupt signal}
Watchdog timer
Set to
7FFFh
1 ^Reset
Vdet4
detection
interrupt signal
Oscillation stop
detection
interrupt signal
Watchdog timer
interrupt request
(non-maskable)
D43
Figure 12.1 Watchdog Timer Block Diagram
Rev.1.00 Jul 15, 2007 Page 117 of 352
REJ09B0385-0100