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GPI/GPO Interface
1
Pin
GPI0
Definition
Input
I/O Attribute
GPI0
GPI1
GPI2
0
0
0
1
1
0
1
1
Note: switching can be fulfilled only when the module is in the control mode of BYPASS or MANUAL.
Chapter 3 Operation and Control
Switches and Key
Refer to Figure 3-1 or Table 3-1（Bank 0）or Table 3-2（Bank 1）to complete control
Rotate SW1 at the position of 0, and select the proper Bank by SW2.
Bank Selection
The SW1 has two Banks
Rotate the SW1 at the position of "0". The position of "0" is always used to select Bank.
Turn SW2 up or down to select Bank.
1.
SW1 Mode Selection
SAC6840N 2X1 Switcher
Tab. 2-5 the Definition of GPI/GPO pins
2
3
GPI1
GPI2
Input
Input
Tab. 2-6 GPI control prescription
GPI3
0
X
MANUAL mode
1
X
0
X
AUTO mode
1
X
0
X
BYPASS mode
1
X
0/1
X
SW1
SW2
SW3
Fig. 3-1 Switches and Key
4
5
GPI3
GND
GPO0
Input
Ground
Output
Prescription
Switch to the second source
It has no effect on the output when the
Switch to the second source
Invalid, no switch
6
7
8
GPO1
GPO2
Output
Output
Switch to the first source
status of GPI2 changes
Switch to the first source
9
GPO3
Output
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