M32C8A Datasheet, PDF (57/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
6. Power Supply Voltage Detection Function
Watchdog Timer Control Register
b7 b6 b5 b4 b3 b2 b1 b0
0
Symbol
WDC
Address
000Fh
After Reset
00XX XXXXb
Bit Symbol
Bit Name
Function
RW
−
(b4-b0)
High-order bits of watchdog timer
RO
WDC5
Cold start/warm start determine 0: Cold start
flag⁽¹⁾
1: Warm start
RW
−
(b6)
Reserved bit
Set to 0
RW
WDC7 Prescaler select bit
0: Divide-by-16
1: Divide-by-128
RW
NOTE:
1. The WDC5 bit is 0 after power-on. It can be set to 1 only by program. The bit becomes 1 by writing either a 0 or 1.
The bit remains a value set before reset, even after reset has been performed.
Figure 6.4 WDC Register
Rev.1.00 Jul 15, 2007 Page 40 of 352
REJ09B0385-0100