User manual

Connectors, LEDs and jumpers

Issue E 85

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

These are four user configurable jumpers connected to GPIO pins of PXA270 and

MAX7313 GPIO Expander 1.

JP1 Description

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

2 Battery Backup switch input

Normally supplied with jumper removed.