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ARX3A0 − CSP35

www.onsemi.com

4

Jumper/Header Functions & Default Positions

Table 1. JUMPERS AND HEADERS

Jumper/Header No.

Jumper/Header Name

Pins

Description

P7

GPIO0/FLASH

Open (Default)

1

+5V0

2

GND

3

GPIO0/FLASH

4

+3V3

P8

SHUTTER / GPIO1

Open (Default)

Normal Operation

1−2

Pulled Up

2−3

Pulled low

P10

GPIO2/TRIGGER

3−5 (Default)

GPIO2 Pull Down

1−3

GPIO2 Pull Up

2−4

Trigger from Demo3

Pin 4

Function Generator Input

P13

GPIO3

Open (default)

Normal Operation / Multi−Camera Slave Mode

1−2

GPIO3 Pulled up

2−3

GPIO3 Pulled down / Master Mode

P15

LED

1−2 (Default)

Power LED ON

Open

Power LED OFF

P20

CLK Selection

1−3 (Default)

Select on−board oscillator clock & enable master clock
output

2−4

Select Slave clock (for slave sensor in multi−camera mode)

3−5

Select Demo3 clock

6−8

Enable Master clock (to support slave sensor in 
multi−camera mode)

P24

I

2

C

1−2 & 3−4 (Default)

Demo3 SCL & SDA connected to sensor SCL & SDA 
respectively

P25, P26

Multi Camera (Slave/

Master)

Refer schematics for the connection

P27

EEPROM Addr. Sel

1−2 Closed &

3−4 Open (Default)

EEPROM Address set to 0xA8

1−2 open & 

3−4 Open

EEPROM Address set to 0xAC

1−2 open & 

3−4 closed

EEPROM Address set to 0xA4

1−2 Closed & 

3−4 closed

EEPROM Address set to 0xA0

P40

TEST

1−2 (Default)

Normal Mode Operation

Open

Test Mode

P41

ATEST1

Open (Default)

Normal operation

Pin 1 & 2

Analog manufacturing test access

P42

VAA Sel

2−3 (Default)

VAA is at 2.7 V from the on board LDO

1−2

VAA is at 2.8 V from Demo3 Baseboard

P43

VAA−PIX Sel

2−3 (Default)

VAA−PIX is at 2.7 V from the on board LDO

1−2

VAA−PIX is at 2.8 V from Demo3 Baseboard

SW1

RESET

N/A

When pushed, 240 ms reset signal will be sent to ARX3A0

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