EM73461B 데이터 시트보기 (PDF) - ELAN Microelectronics

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EM73461B

B 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

ELAN Microelectronics 

EM73461B

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminary

TRGB (Time B overflow interrupt)

PC 0 0 0 0 0 0 0 0 1 0 0 0

PC 0 0 0 0 0 0 0 0 0 1 0 0 0

TBI (Time base interrupt)

PC 0 0 0 0 0 0 0 0 1 0 1 0

PC 0 0 0 0 0 0 0 0 0 1 0 1 0

INT1 (External interrupt from P8.0)

PC 0 0 0 0 0 0 0 0 1 1 0 0

PC 0 0 0 0 0 0 0 0 0 1 1 0 0

(4) Reset operation:

PC 0 0 0 0 0 0 0 0 0 0 0 0

PC 0 0 0 0 0 0 0 0 0 0 0 0 0

(5) Other operations:

For 1-byte instruction execution: PC + 1

For 2-byte instruction execution: PC + 2

(for 4K ROM)

(for 8K ROM)

(for 4K ROM)

(for 8K ROM)

(for 4K ROM)

(for 8K ROM)

(for 4K ROM)

(for 8K ROM)

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.

FLAGS

There are four kinds of flag, CF ( Carry flag ), ZF ( Zero flag ), SF ( Status flag ) and GF ( General flag ),

these 4 1-bit flags are affected by the arithematic, logic and comparative .... operation.

All flags will be put into stack when an interrupt subroutine is served, and the flags will be restored after

RTI instruction executed.

* This specification are subject to be changed without notice.

12.26.2001 10

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