SyncMOS Technologies International, Inc.

SM894051

8-Bits Micro-controller

With 4KB Flash ROM embedded

Specifications subject to change without notice contact your sales representatives for the most recent information.

SM894051

V1.4

09 /2006

9

DEC

direct

direct = direct － 1

2

1

DEC

@Ri

<@Ri> = <@Ri> － 1

1

1

INC

DPTR

DPTR = DPTR － 1

1

2

MUL

AB

B:A = A × B

1

4

DIV

AB

A = INT (A/B)

B = MOD (A/B)

1

4

DA

A

Decimal adjust ACC

1

1

Logical Instructions

ANL

A,Rn

A .AND. Rn

1

1

ANL

A,direct

A .AND. direct

2

1

ANL

A,@Ri

A .AND. <@Ri>

1

1

ANL

A,#data

A .AND. #data

2

1

ANL

direct,A

direct .AND. A

2

1

ANL

direct,#data

direct .AND. #data

3

2

ORL

A,Rn

A .OR. Rn

1

1

ORL

A,direct

A .OR. direct

2

1

ORL

A,@Ri

A .OR. <@Ri>

1

1

ORL

A,#data

A .OR. #data

2

1

ORL

direct,A

direct .OR. A

2

1

ORL

direct,#data

direct .OR. #data

3

2

XRL

A,Rn

A .XOR. Rn

1

1

XRL

A,direct

A .XOR. direct

2

1

XRL

A,@Ri

A .XOR. <@Ri>

1

1

XRL

A,#data

A .XOR. #data

2

1

XRL

direct,A

direct .XOR. A

2

1

XRL

direct,#data

direct .XOR. #data

3

2

CLR

A

A = 0

1

1

CPL

A

A = /A

1

1

RL

A

Rotate ACC Left 1 bit

1

1

RLC

A

Rotate Left through Carry

1

1

RR

A

Rotate ACC Right 1 bit

1

1

RRC

A

Rotate Right through Carry

1

1

SWAP

A

Swap Nibbles in A

1

1

Data Transfers Instructions

MOV

A,Rn

A = Rn

1

1

MOV

A,direct

A = direct

2

1

MOV

A,@Ri

A = <@Ri>

1

1

MOV

A,#data

A = #data

2

1

MOV

Rn,A

Rn = A

1

1

MOV

Rn,direct

Rn = direct

2

2

MOV

Rn,#data

Rn = #data

2

1

MOV

direct,A

direct = A

2

1

MOV

direct,Rn

direct = Rn

2

2

MOV

direct,direct

direct = direct

3

2

MOV

direct,@Ri

direct = <@Ri>

2

2

MOV

direct,#data

direct = #data

2

1

MOV

@Ri,A

<@Ri> = A

1

1

MOV

@Ri,direct

<@Ri> = direct

2

2

MOV

@Ri,#data

<@Ri> = #data

2

1

MOV

DPTR,#data16

DPTR = #data16

3

2

MOVC

A,@A+DPTR

A = code memory[A+DPTR]

1

2

MOVC

A,@A+PC

A = code memory[A+PC]

1

2

PUSH

direct

INC SP: MOV “@’SP’, < direct >

2

2

POP

direct

MOV < direct >, “@SP”: DEC SP

2

2

XCH

A,Rn

ACC and < Rn > exchange data

1

1

XCH

A,direct

ACC and < direct > exchange data

2

1

XCH

A,@Ri

ACC and < Ri > exchange data

1

1

XCHD

A,@Ri

ACC and @Ri exchange low nibbles

1

1

Boolean Instructions

CLR

C

C = 0

1

1

CLR

bit

bit = 0

2

1

SETB

C

C = 1

1

1

SETB

bit

bit = 1

2

1

CPL

C

C = /C

1

1

CPL

bit

bit = /bit

2

1

ANL

C,bit

C = C .AND. bit

2

2

ANL

C,/bit

C = C .AND. /bit

2

2