Related Registers - Renesas M16C Series User Manual

M30240 Group

2.9.1.6 Related Registers

Figure 2.110 shows the memory map of Watchdog timer-related registers, and Figure 2.111 shows the
Watchdog timer-related registers.
Figure 2.110: Memory map of Watchdog timer related registers
Watchdog timer control register
b7 b6 b5 b4
0 0
Watchdog timer start register
b7
Figure 2.111: Watchdog timer-related registers
Rev.1.00 Sep 24, 2003 Page 266 of 360
000E
16 Watchdog timer start register (WDTS)
000F Watchdog timer control register (WDC)
16
b3 b2 b1 b0
Symbol
WDC
Bit symbol
High-order bit of watchdog timer
Reserved bit
WDC7 Prescaler select bit
b0
Symbol
WDTS
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.
Address
000F
16
Bit name Function
Must always be set to "0"
0 : Divided by 16
1 : Divided by 128
Address
000E
16
Function
Watchdog Timer
When reset
000XXXXX
2
R W
When reset
Indeterminate
R W
"
16