W77E468 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W77E468

8 BIT MICROCONTROLLER

Winbond 

Preliminary W77E468

Table 2. Instructions that affect Flag settings

Instruction

ADD

ADDC

SUBB

MUL

DIV

DA A

RRC A

RLC A

SETB C

Carry

X

X

X

0

0

X

X

X

1

Overflow

X

X

X

X

X

Auxiliary

Carry

X

X

X

Instruction

CLR C

CPL C

ANL C, bit

ANL C, bit

ORL C, bit

ORL C, bit

MOV C, bit

CJNE

Carry

0

X

X

X

X

X

X

X

A "X" indicates that the modification is as per the result of instruction.

Table 3. Instruction Timing for W77E468

Instruction

HEX

Op-Code

Bytes

NOP

00

1

ADD A, R0

28

1

ADD A, R1

29

1

ADD A, R2

2A

1

ADD A, R3

2B

1

ADD A, R4

2C

1

ADD A, R5

2D

1

ADD A, R6

2E

1

ADD A, R7

2F

1

ADD A, @R0

26

1

ADD A, @R1

27

1

ADD A, direct

25

2

ADD A, #data

24

2

ADDC A, R0

38

1

ADDC A, R1

39

1

ADDC A, R2

3A

1

ADDC A, R3

3B

1

ADDC A, R4

3C

1

ADDC A, R5

3D

1

ADDC A, R6

3E

1

ADDC A, R7

3F

1

ADDC A, @R0

36

1

ADDC A, @R1

37

1

ADDC A, direct

35

2

ADDC A, #data

34

2

ACALL addr11

71,91,B1,

2

11,31,51,

D1,F1

AJMP ADDR11

01,21,41,

2

61,81,A1,

C1,E1

W77E468

Machine

Cycles

1

1

1

1

1

1

1

1

1

1

1

2

2

1

1

1

1

1

1

1

1

1

1

2

2

3

W77E468

Clock

cycles

4

4

4

4

4

4

4

4

4

4

4

8

8

4

4

4

4

4

4

4

4

4

4

8

8

12

3

12

Overflow

Auxiliary

Carry

8032

Clock

cycles

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

24

W77E468 vs.

8032 Speed

Ratio

3

3

3

3

3

3

3

3

3

3

3

1.5

1.5

3

3

3

3

3

3

3

3

3

3

1.5

1.5

2

24

2

- 31 -

Publication Release Date: January 1999

Revision A1

Share Link: