EM73C63 datasheet(9/40 Pages) EMC

9 / 40 page

* This specification are subject to be changed without notice.

EM73C63

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminary

8.11.2000

PC 0

aaaaaaaaaa

RET

Objectcode:01001111

Condition: PC

←STACK[SP];SP+1

The return address stored in stack

RTI

Objectcode:01001101

Condition:FLAG.PC

←STACK[SP];EI←1;SP+1

The return address stored in stack

(3)Interruptacceptanceoperation:

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 follows:

INT0(ExternalinterruptfromP8.2)

00000000000

TRGA(TimerAoverflowinterrupt)

0000000000

TRGB(TimeBoverflowinterrupt)

00000000

0 1

0 0

TBI (Timebaseinterrupt)

00000000

0 1

1 0

INT1(ExternalinterruptfromP8.0)

00000000

0 1

0 0

(4)Resetoperation:

00000000000

0 0

(5)Otheroperations:

For 1-byte instruction execution: PC + 1

For 2-byte instruction execution: PC + 2

For 3-byte instruction execution: PC + 3

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