8

* This specification are subject to be changed without notice.

EM73880

EM73880

EM73880

EM73880

EM73880

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

11.30.2001

Preliminary

Preliminary

Preliminary

Preliminary

Preliminary

(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 P8.2)

PC 000000000010

HTC

HTC

HTC

HTC

HTC (High speed counter)

PC 000000000100

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

SPI

SPI

SPI

SPI

SPI (Speech Interrupt)

PC 000000001100

(4) Reset operation:

(4) Reset operation:

(4) Reset operation:

(4) Reset operation:

(4) Reset operation:

PC 000000000000

(5) Other operations:

(5) Other operations:

(5) Other operations:

(5) Other operations:

(5) Other operations:

For 1-byte instruction execution: PC + 1

For 2-byte instruction execution: PC + 2

For 3-byte instruction execution: PC + 3

ACCUMULATOR

ACCUMULATOR

ACCUMULATOR

ACCUMULATOR

ACCUMULATOR

Accumulator is a 4-bit data register for temporary data . For the arithematic, logic and comparative opertion

.., ACC plays a role which holds the source data and result .