M32C80 Datasheet, PDF (125/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

M32C/80 Group
11. Watchdog Timer
Watchdog Timer Control Register
b7 b6 b5 b4 b3 b2 b1 b0
0
Symbol
WDC
Address
000F16
After Reset
000X XXXX2
Bit
Symbol
Bit Name
Function
RW
(b4 - b0) ^{High-Order Bit of the Watchdog Timer}
RO
Reserved Bit
(b5)
When read,
its content is inderterminate
RW
Reserved Bit
Set to "0"
RW
(b6)
WDC7 Prescaler Select Bit
0: Divide-by-16
1: Divide-by-128
RW
Watchdog Timer Start Register⁽¹⁾
b7
b0
Symbol
Address
WDTS
000E16
After Reset
Indeterminate
Function
RW
The watchdog timer is reset to start counting by a write instruction to the
WDTS register. Default value of the watchdog timer is always set to
WO
"7FFF16" regardless of the value written.
NOTE:
1. Write the WDTS register after the watchdog timer interrupt is generated.
Figure 11.2 WDC Register and WDTS Register
Rev. 1.00 Nov. 01, 2005 Page 106 of 330
REJ09B0271-0100