M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 87

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

Watchdog Timer
72
Figure 1.15.2. Watchdog timer control and start registers
b7
Watchdog timer control register
Watchdog timer start register
b7
b6
0
b5
0
b4
b3
b2
b1
b0
b0
The watchdog timer is initialized and starts counting after a write instruction to
this register. The watchdog timer value is always initialized to “7FFF
regardless of whatever value is written.
Bit symbol
High-order bit of watchdog timer
Reserved bit
Reserved bit
WDC7
Symbol
Symbol
WDTS
WDC
Prescaler select bit
Bit name
Address
Address
000E
000F
16
16
Function
Indeterminate
When reset
000XXXXX
When reset
Must always be set to “0”
Must always be set to “0”
0 : Divided by 16
1 : Divided by 128
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
2
Function
16
”
Mitsubishi microcomputers
M16C / 62 Group
R
R
W
W