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13 general purpose i/o (gpio1), 1 gpio address select (jp3), 14 power connector (pwr1, pwr2) – Acrosser AR-B1640 User Manual

Page 15

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AR-B1640 User’s Guide

15

3.13 GENERAL PURPOSE I/O (GPIO1)

7 1

8 2


3.13.1 GPIO Address Select (JP3)

JP3

z Users could test GPIO function under ‘Debug’ program as follow:

C:>debug

z

O 215 01H
Generally, the GPIO2 Pin2 will be High Level, others output pin
are Low Level.

z

I 215
FC

Generally, suppose that GPIO1’s Pin1 and Pin3 are High Level

then will show “FC”


3.14 POWER CONNECTOR (PWR1, PWR2)


1 4

(PWR1)




The PWR1 is a 4-pin power connector. It’s the standard connectors on all Acrosser boards.

1 2

(PWR2)


Pin

Signal

Pin

Signal

1 GPI0

2 GPO0

3 GPI1

4 GPO1

5 GPI2

6 GPO2

7 GPI3

8 GPO3

JP3

ADDRESS

ON 215H

(Factory

Preset)

OFF 77H

PIN

Signal

1

+12V

2 GND

3 GND

4 VCC

(+5V)

PIN

Signal

1

-12V

2 -5V