10 bidirectional i/o (gpio), 11 tv out (j1), 12 extend led module/power (j2) – Acrosser AR-B1661 User Manual
Page 16
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AR-B1661 Manual
14
2.3.10 Bidirectional I/O (GPIO)
1
9
2
10
l Users could test GPIO function under ‘Debug’ program as follow:
C:>debug
l O 221 01H
Generally, the GPIO2 Pin2 will be High Level, others
output pin are Low Level.
l I 221
FC
Generally, suppose that GPIO1’s Pin1 and Pin3 are High
Level then will show “FC”
2.3.11 TV Out (J1)
1 2 3 4 5
2.3.12 Extend LED Module/Power (J2)
1 2
Pin #
Signal Name
Pin #
Signal Name
1
GPI0
2
GPO0
3
GPI1
4
GPO1
5
GPI2
6
GPO2
7
GPI3
8
GPO3
9
VCC (5V)
10
GND
Pin #
Signal Name
Pin #
Signal Name
1
LUMA
4
GND
2
CHROMA
5
GND
3
COMP
6
GND
Pin
Signal
1
P/LED
2
+5V
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