SAC6840N 2X1 Switcher - 7 -
GPI/GPO Interface
Tab. 2-5
the Definition of GPI/GPO pins
Pin
1 2 3 4 5 6 7 8 9
Definition
GPI0 GPI1 GPI2 GPI3 GND GPO0
GPO1 GPO2 GPO3
I/O Attribute
Input
Input Input Input Ground
Output
Output
Output
Output
Tab. 2-6
GPI control prescription
GPI0 GPI1 GPI2 GPI3
Prescription
0 0
0 X
MANUAL mode
Switch to the first source
1
X
Switch to the second source
0 1
0 X
AUTO mode
It has no effect on the output when the
status of GPI2 changes
1 X
1 0
0 X
BYPASS mode
Switch to the first source
1
X
Switch to the second source
1
1
0/1
X
Invalid, no switch
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
Fig. 3-1
Switches and Key
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
SW1
SW2
SW3
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