Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 - Page 39

4 PERIPHERAL CIRCUITS
S1C33L03 PRODUCT PART EPSON A-23
A-1
A-4
NameAddressRegister name Bit Function Setting Init. R/W Remarks
WRWD
–
D7
D6–0
EWD write protection
–
0
–
R/W
–
0 when being read.
0040170
(B)
–
1 Write enabled 0 Write-protect Watchdog
timer write-
protect register
–
–
–
EWD
–
D7–2
D1
D0
–
Watchdog timer enable
–
–
0
–
–
R/W
–
0 when being read.
0 when being read.
0040171
(B)
1 NMI enabled 0 NMI disabled
Watchdog
timer enable
register