Signal Descriptions

A.9 GPIO interface

Four eight-bit General Purpose Input/Output (GPIO) controllers are incorporated into the ARM926EJ-S PXP Development Chip. The signals on the GPIO connector are shown in Figure A-11.

3V3

GP0_0

GP0_1

GP0_2

GP0_3

GP0_4

GP0_5

GP0_6

GP0_7

GP1_0

GP1_1

GP1_2

GP1_3

GP1_4

GP1_5

GP1_6

GP1_7

1 2

33 34

3V3

 

3V3

GND

 

GP2_0

GND

 

GP2_1

GND

 

GP2_2

GND

 

GP2_3

GND

 

GP2_4

GND

 

GP2_5

GND

 

GP2_6

GND

 

GP2_7

GND

 

GP3_0

GND

 

GP3_1

GND

 

GP3_2

GND

 

GP3_3

GND

 

GP3_4

GND

 

GP3_5

GND

 

GP3_6

GND

 

GP3_7

1 2

33 34

3V3 GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND

J15

J16

GPIO0 and GPIO1

GPIO2 and GPIO3

 

Figure A-11 GPIO connector

Note

Each data pin has an on-board 10KΩ pullup resistor to 3.3V.

A-14

Copyright © 2003-2010 ARM Limited. All rights reserved.

ARM DUI 0224I

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Image 282
ARM ARM DUI 0224I manual Each data pin has an on-board 10KΩ pullup resistor to, Figure A-11 Gpio connector