APPENDIX: I/O MAP

A-1

Register name

Address

Bit

Name

Function

 

Setting

 

Init.

R/W

Remarks

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Watchdog

0040170

D7

WRWD

EWD write protection

1

Write enabled

 

0

 

Write-protect

0

R/W

 

timer write-

(B)

D6–0

–

–

 

–

 

 

 

–

–

0 when being read.

protect register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Watchdog

0040171

D7–2

–

–

 

–

 

 

 

–

–

0 when being read.

timer enable

(B)

D1

EWD

Watchdog timer enable

1

NMI enabled

 

0

 

NMI disabled

0

R/W

 

register

 

D0

–

–

 

–

 

 

 

–

–

0 when being read.

B-ap

S1C33L03 FUNCTION PART

EPSON

B-APPENDIX-7