SN8P1602A datasheet(62/76 Pages) SONIX

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SN8P1602B

8-Bit Micro-Controller

SONiX TECHNOLOGY CO., LTD

Page 62

Version 1.1

I/O PULL UP REGISTER

SN8P1602B

0BEH

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

PUR

PUR2

PUR1

PUR0

Read/Write

After reset

Example: I/O Pull up Register

CLR

PUR

; Disable all ports Pull-up register.

MOV

A, #07H

; Enable Port0, 1, 2 Pull-up register,

B0MOV

PUR, A

;

I/O PORT DATA REGISTER

SN8P1602B

0D0H

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

P00

Read/Write

After reset

SN8P1602B

0D1H

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

P14

P13

P12

P11

P10

Read/Write

R/W

After reset

SN8P1602B

0D2H

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

P27

P26

P25

P24

P23

P22

P21

P20

Read/Write

R/W

After reset

Example: Read data from input port.

B0MOV

A, P0

; Read data from Port 0

B0MOV

A, P1

; Read data from Port 1

B0MOV

A, P2

; Read data from Port 2

Example: Write data to output port.

MOV

A, #55H

; Write data 55H to Port 1 and Port 2

B0MOV

P1, A

B0MOV

P2, A

Example: Write one bit data to output port.

B0BSET

P1.3

; Set P1.3 and P2.5 to be “1”.

B0BSET

P2.5

B0BCLR

P1.3

; Set P1.3 and P2.5 to be “0”.

B0BCLR

P2.5

Example: Port bit test.

B0BTS1

P0.0

; Bit test 1 for P0.0

B0BTS0

P1.2

; Bit test 0 for P1.2

SN8P1602A Datasheet(PDF) 62 Page - SONiX Technology Company

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