Epson S1C33210 Personal Computer User Manual


  Open as PDF
of 559
 
4 PERIPHERAL CIRCUITS
S1C33210 PRODUCT PART EPSON A-21
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
 previous next