ZEUS Technical Manual

Connectors, LEDs and jumpers

 

 

Jumpers

There are six user selectable jumpers on the ZEUS. Their use is explained below.

JP1 – User jumpers

Connector: 8-way, 2.54mm (0.1") dual row through-hole header

Pin

Signal name

Pin

Signal name

GPIO

1

GND

2

USER_LINK1

CPU_GPIO 13

3

GND

4

USER_LINK2

CPU_GPIO 102

5

GND

6

USER_LINK3

EXP1_GPIO 6

7

GND

8

USER_LINK4

EXP1_GPIO 14

 

 

 

 

 

87

21

These are four user configurable jumpers connected to GPIO pins of PXA270 and MAX7313 GPIO Expander 1.

JP1Description

GPIO read as ‘0’

GPIO read as ‘1’ (Default)

User jumpers 1 and 2 (GPIO 13 and 91) may be connected to an external momentary push switch and used to wake the ZEUS from sleep.

JP2 – Battery disconnect

Connector: 2-way, 2.54mm (0.1") through-hole header

Pin Signal name

1 Battery Plus Terminal

1 2

2 Battery Backup switch input

Normally supplied with jumper removed.

This jumper is used to disconnect the backup battery to prevent it from draining.

JP2Description

Battery connected

Battery disconnected (default)

© 2007 Eurotech Ltd Issue D

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