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LCD 64x32 Logic Boards Users Manual
7850 East Gelding Drive • Scottsdale, AZ 85260-3420
LCD 64x32 Logic Boards Users Manual B.doc
Page 6 of 13
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0410
The logic boards have two connectors:
J1
Input port:
7x2 male header .1”x.1” spacing.
This connector connects to the controller port or J2 of the previous logic board in the daisy chain.
Pin
Function
1
Din
Connected to Din of all SmartSwitches
2
GND
Ground
3
CLK
Clock for all shift registers
4
GND
Ground
5
NC
6
+9V
9V Supply
7
LP
Latch all shift register outputs to the all drivers
8
oe
Driver Output Enable. Can be connected to gnd.
9
SCK
SCK of all SmartSwitches
10
VLC
VLC of all SmartSwitches
11
SDI
SDI of the all SmartSwitch
12
+9V
9V Supply
13
NC
14
SWRD
Switch Read bus for all SmartSwitches
J2
Output port:
7x2 male header .1”x.1” spacing.
This connector connects to J1 of the next logic board in the daisy chain.
Pin
Function
1
Dout
Connected to Dout of the last shift register
2
GND
Connected to J1
3
CLK
Connected to J1
4
GND
Connected to J1
5
GND
Connected to J1
6
+9V
Connected to J1
7
LP
Connected to J1
8
oe
Connected to J1
9
SCK
Connected to J1
10
VLC
Connected to J1
11
SDI
Connected to J1
12
+9V
Connected to J1
13
GND
Connected to J1
14
SWRD
Connected to J1