SONIX SN8P2201, Руководство пользователя

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SN8P2200 Series
USB 1.1 Low-Speed 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 73
Version 1.7
7.4
I/O PORT DATA REGISTER
0D0H Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
P0 - P06 P05 P04 P03 P02 P01 P00
Read/Write - R/W R/W R/W R/W R/W R/W R/W
After reset - 0 0 0 0 0 0 0
0D1H Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
P1 P17 P16 P15 P14 P13 P12 P11 P10
Read/Write R R/W R/W R R/W R/W R/W R/W
After reset 0 0 0 0 0 0 0 0
0D5H Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
P5 P57 P56 P55 P54 P53 P52 P51 P50
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
After reset 0 0 0 0 0 0 0 0
’ Note: The P14 keeps “1” when external reset enable by code option.
¾
Example: Read data from input port.
B0MOV A, P0 ; Read data from Port 0
B0MOV A, P1 ; Read data from Port 1
B0MOV A, P5 ; Read data from Port 5
¾ Example: Write data to output port.
MOV A, #0FFH ; Write data FFH to all Port.
B0MOV P0, A
B0MOV P1, A
B0MOV P5, A
¾ Example: Write one bit data to output port.
B0BSET P1.3 ; Set P1.3 and P5.5 to be “1”.
B0BSET P5.5
B0BCLR P1.3 ; Set P1.3 and P5.5 to be “0”.
B0BCLR P5.5