7

* This specification are subject to be changed without notice.

10.8.2001

EM73361A

EM73361A

EM73361A

EM73361A

EM73361A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

SF=0 ; PC

← PC + 2 ( branch condition not satisified )

PC

Original PC value + 2

(2) Subroutine instruction:

(2) Subroutine instruction:

(2) Subroutine instruction:

(2) Subroutine instruction:

(2) Subroutine instruction:

SCALL a

SCALL a

SCALL a

SCALL a

SCALL a

Object code: 1110 nnnn

Condition : PC

← a ; a=8n+6 ; n=1..15 ; a=86h, n=0

LCALL a

LCALL a

LCALL a

LCALL a

LCALL a

Object code: 0100 0aaa aaaa aaaa

Condition: PC

← a

PC 0

aaaaaaaaaaa

RET

RET

RET

RET

RET

Object code: 0100 1111

Condition: PC

← STACK[SP]; SP + 1

PC

The return address stored in stack

RT I

RT I

RT I

RT I

RT I

Object code: 0100 1101

Condition : FLAG. PC

← STACK[SP]; EI ← 1; SP + 1

PC

The return address stored in stack

(3) Interrupt acceptance operation:

(3) Interrupt acceptance operation:

(3) Interrupt acceptance operation:

(3) Interrupt acceptance operation:

(3) Interrupt acceptance operation:

When an interrupt is accepted, the original PC is pushed into stack and interrupt vector will be loaded into

PC,The interrupt vectors are as following:

INT0

INT0

INT0

INT0

INT0 (External interrupt from P0.2)

PC 000000000010

TRGA

TRGA

TRGA

TRGA

TRGA (Timer A overflow interrupt)

PC 000000000110

TRGB

TRGB

TRGB

TRGB

TRGB (Time B overflow interrupt)

PC 000000001000

TBI

TBI

TBI

TBI

TBI (Time base interrupt)

PC 000000001010

PC

0

0

0

0

a

a

a

a

a

a

a

a