GU-3900B series “General Function” Software Specification
4.7.4.57
US ( p 01h n a
(I/O Port Input / Output setting)
Code:
1Fh 28h 70h 01h n a
n:
I/O port number
a:
Set Input / Output (bit-wise)
Definable area:
00h ≤ n ≤ 01h
 
n = 00h: Port 0
 
n = 01h: Port 1
00h ≤ a ≤ FFh
Bit value = 0: Input
Bit value = 1: Output
Function: Set input or output for general-purpose I/O ports.
Port input / output is set by value of 'a'. Bit assignment is as follows:
Caution: I/O port is intended for simple peripheral switches and for controlling lights, etc,
and should not be used for applications where high reliability is required.
4.7.4.58
US ( p 10h n a
(I/O Port Output)
Code:
1Fh 28h 70h 10h n a
n:
I/O port number
a:
Output data value
Definable area:
00h ≤ n ≤ 01h
n = 00h: Port 0
 
n = 01h: Port 1
00h ≤ a ≤ FFh
Function: Output data to general-purpose I/O port.
Output data is set by value of 'a'. Bit assignment is as follows:
4.7.4.59
US ( p 20h n
(I/O Port Input)
Code:
1Fh 28h 70h 20h n
n:
I/O port number
Definable area:
00h ≤ n ≤ 01h
n = 00h: Port 0
n = 01h: Port 1
Function:
The state of a general-purpose I/O port at the time this command is processed is
transmitted.
The following data is transmitted from the RS-232 interface:
Transmitted data
Hex
Data length
(1) Header
28h
1 byte
(2) Identifier (1)
70h
1 byte
(3) Identifier (2)
20h
1 byte
(4) Data
00h–FFh
1 byte
Response time varies depending on the state of the receive buffer.
- 56
-
Port bit No.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Data bit
D7
D6
D5
D4
D3
D2
D1
D0
Port bit No.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Data bit
D7
D6
D5
D4
D3
D2
D1
D0
相关PDF资料
GU256X128E-3900 MODULE VF GRAPHIC DISPLY 256X128
GU256X32-800A MODULE VF GRAPHIC DISPLAY 256X32
HFA60MB60C DIODE HEXFRED 600V 50A D-60
HFA70NC60CSL DIODE HEXFRED 600V 56A D61-8-SL
HFA70NC60C DIODE HEXFRED 600V 56A D61-8
HFA75MB40C DIODE HEXFRED 400V 75A D-60
HFA80NC40CSL DIODE HEXFRED 400V 85A D61-8-SL
HFA80NC40CSM DIODE HEXFRED 400V 85A D61-8-SM
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