SN8P2602B Datasheet, PDF (69/95 Pages) SONiX Technology Company – 8-Bit Micro-Controller

7.4 I/O PORT DATA REGISTER
0D0H
P0
Read/Write
After reset
0D1H
P1
Read/Write
After reset
0D5H
P5
Read/Write
After reset
Bit 7
-
-
-
Bit 7
-
-
-
Bit 7
P57
R/W
0
Bit 6
-
-
-
Bit 6
-
-
-
Bit 6
P56
R/W
0
Bit 5
-
-
-
Bit 5
P15
R
0
Bit 5
P55
R/W
0
Bit 4
-
-
-
Bit 4
P14
R/W
0
Bit 4
P54
R/W
0
Bit 3
-
-
-
Bit 3
P13
R/W
0
Bit 3
P53
R/W
0
Bit 2
-
-
-
Bit 2
P12
R/W
0
Bit 2
P52
R/W
0
’ Note: The P15 keeps “1” when external reset enable by code option.
SN8P2602B
8-Bit Micro-Controller
Bit 1
-
-
-
Bit 1
P11
R/W
0
Bit 1
P51
R/W
0
Bit 0
P00
R/W
0
Bit 0
P10
R/W
0
Bit 0
P50
R/W
0
¾ Example: Read data from input port.
B0MOV
A, P0
B0MOV
A, P1
B0MOV
A, P5
¾ Example: Write data to output port.
MOV
A, #0FFH
B0MOV
P0, A
B0MOV
P1, A
B0MOV
P5, A
¾ Example: Write one bit data to output port.
B0BSET
P1.3
B0BSET
P5.5
B0BCLR
B0BCLR
P1.3
P5.5
; Read data from Port 0
; Read data from Port 1
; Read data from Port 5
; Write data FFH to all Port.
; Set P1.3 and P5.5 to be “1”.
; Set P1.3 and P5.5 to be “0”.
SONiX TECHNOLOGY CO., LTD
Page 69
Preliminary Version 0.4