EM73461B Datasheet, PDF(35/40 Page) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

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EM73461B Datasheet, PDF (35/40 Pages) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

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INSTRUCTION TABLE

EM73461B

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminary

(1) Data Transfer

Mnemonic Object code (binary) Operation description

Byte Cycle

LDA x 0110 1010 xxxx xxxx AccâRAM[x]

2

2

LDAM

0101 1010

Acc âRAM[HL]

1

1

LDAX

LDAXI

LDH #k

0110 0101

0110 0111

1001 kkkk

AccâROM[DP]L

AccâROM[DP]H,DP+1

HRâk

1

2

1

2

1

1

LDHL x 0100 1110 xxxx xx00 LRâRAM[x],HRâRAM[x+1] 2

2

LDIA #k 1101 kkkk

Accâk

1

1

LDL #k 1000 kkkk

LRâk

1

1

STA x 0110 1001 xxxx xxxx RAM[x]âAcc

2

2

STAM

0101 1001

RAM[HL]âAcc

1

1

STAMD

0111 1101

RAM[HL]âAcc, LR-1

1

1

STAMI

0111 1111

RAM[HL]âAcc, LR+1

1

1

STD #k,y 0100 1000 kkkk yyyy RAM[y]âk

2

2

STDMI #k 1010 kkkk

RAM[HL]âk, LR+1

1

1

THA

0111 0110

AccâHR

1

1

TLA

0111 0100

AccâLR

1

1

Flag

C ZS

- Z1

- Z1

- Z1

- Z1

- -1

- -1

- Z1

- -1

- -1

- -1

- ZC

- Z C'

- -1

- Z C'

- Z1

- Z1

(2) Rotate

Mnemonic Object code (binary) Operation description

RLCA

RRCA

0101 0000

0101 0001

âCFâAccâ

âCFâAccâ

Byte Cycle Flag

C ZS

1

1

C Z C'

1

1

C Z C'

(3) Arithmetic operation

Mnemonic Object code (binary) Operation description

ADCAM

ADD #k,y

ADDA #k

ADDAM

ADDH #k

ADDL #k

ADDM #k

DECA

DECL

DECM

INCA

0111 0000

0100 1001 kkkk yyyy

0110 1110 0101 kkkk

0111 0001

0110 1110 1001 kkkk

0110 1110 0001 kkkk

0110 1110 1101 kkkk

0101 1100

0111 1100

0101 1101

0101 1110

AccâAcc + RAM[HL] + CF

RAM[y]âRAM[y] +k

AccâAcc+k

AccâAcc + RAM[HL]

HRâHR+k

LRâLR+k

RAM[HL]âRAM[HL] +k

AccâAcc-1

LRâLR-1

RAM[HL]âRAM[HL] -1

AccâAcc + 1

Byte Cycle Flag

C ZS

1

1

C Z C'

2

2

- Z C'

2

2

- Z C'

1

1

- Z C'

2

2

- Z C'

2

2

- Z C'

2

2

- Z C'

1

1

- ZC

1

1

- ZC

1

1

- ZC

1

1

- Z C'

* This specification are subject to be changed without notice.

12.26.2001 35

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