21 gpio, Cn38: carrier gpio, S1: carrier gpio address sd card enable switch – ADLINK nanoX-BASE User Manual

Page 30: Cn39: module gpio, Jp19: onboard gpio

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nanoX-BASE User’s Manual

Page 30

CN38:

Carrier GPIO

GPIOs of CN38 come from
the NXP PCA9535 I/O Port
onboard the nanoX-BASE
(enabled/disabled by JP19).

Pin

Signal

Pin

Signal

1

GPI0

2

GPO0

3

GPI1

4

GPO1

5

GPI2

6

GPO2

7

GPI3

8

GPO3

1

2

7

8


S1: Carrier GPIO Address

SD Card Enable Switch

Default: all "On".

Pin On

Off

Description

1

Low

High

GPIO address A0

2

Low

High

GPIO address A1

3

Low

High

GPIO address A2

4

Enabled

Disabled

SD card enable

6.21 GPIO

1 2 3 4

ON DIP

CN39:

Module GPIO

GPIOs of CN39 come from
the COM Express module.

Pin

Signal

Pin

Signal

1

GPI0

2

GPO0

3

GPI1

4

GPO1

5

GPI2

6

GPO2

7

GPI3

8

GPO3

1

2

7

8


Pins 1-3 of the S1 switch set the device address of the NXP PCA9535 I/O Port.

R/W

0

1

0

0

A2

A1

A0

programmable

slave address

fixed

JP19:

Onboard GPIO

Enables/disables the GPIO onboard
the nanoX-BASE carrier.

Jumper

Status

1-2

Enable

<<<<

2-3

Disable

1
2
3

Note:

<<<< indicates default setting

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