MDT1051

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P.4

2005/6

Ver. 1.9

(4) STATUS (Status register) : R03

Bit

Symbol

Function

0

1

2

3

4

5

7~6

C

HC

Z

PF

TF

RBS0

——

Carry bit

Half Carry bit

Zero bit

Power down Flag bit

WDT Timer overflow Flag bit

Register Bank Select bit :

0 : 00H --- 7FH

1 : 80H --- FFH

General purpose bit

(5) MSR (Memory Bank Select Register) : R4

Memory Bank Select Register :

0 : 00~7F

1 : 80~FF

b7

b6

b5

b4

b3

b2

b1

b0

Indirect Addressing Mode

(6) PORT A : R05

PA4~PA0, I/O Register

(7) PORT B : R06

PB7~PB0, I/O Register

(8) ADS0 ( A/D Status Register ) : R08

Bit

Symbol

Function

0

ADRUN

0 : A/D converter module is shut off and consumes no operating current

1 : A/D converter module is operating

1

ADIF

A/D conversion complete interrupt flag bit

Set when conversion is completed. Reset in software.

2

GO/DONEB

GO/DONEB must be set to begin a conversion . It is automatically reset

in hardware when the conversion is complete

4,3

CHS1-0

00 : AIC0 01 : AIC1 10 : AIC2

11 : AIC3

5

Reserved

Can be used as a general purpose r/w bit

7,6

ASCS1-0

00 : fosc/2 01: fosc/8 10 : fosc/32 11 : f RC (*Note)