Kontron ETX-CD - Manual (Page 28)

ETX®-CD / Features and Interfaces
4.5 GPIO - General Purpose Input and Output
The offers 4 General Purpose Input (GPI) pins and 4 General Purpose Output (GPO) pins. On a 3.3V level digital in- and
outputs are available.
Signal Pin Description
GPI0 A54 General Purpose Input 0
GPI1 A63 General Purpose Input 1
GPI2 A67 General Purpose Input 2
GPI3 A85 General Purpose Input 3
GPO0 A93 General Purpose Output 0
GPO1 B54 General Purpose Output 1
GPO2 B57 General Purpose Output 2
GPO3 B63 General Purpose Output 3
Configuration
The GPI and GPO pins can be configured via JIDA32/K-Station. Please refer to the JIDA32/K-Station manual in the driver
download packet on our
customer section .
To enable GPIO functionality, modules with HW revision CE 1.x.x must be reworked. Contact
your local sales or support for further information. On modules with HW revision CE 4.x.x
and BIOS R115 or newer GPIO/SDIO can be switched via BIOS setup option
The General Purpose Inputs and Outputs are not applicable to drive applications faster than
2ms. It’s recommended to use data transfer rates only up to 1 kHz.
General Purpose Outputs are high impedance until first write access
There is one IO Port controlled via onboard CPLD (1 Byte, Port 0) available and the 4 Inputs and 4 Outputs are fixed in
direction. To access the GPIOs use the JIDA32 interface. You can write to a General Purpose Output with the upper half
byte. To read a General purpose Input use the lower half byte.
Bit of GPIO Port0 Function COM Express Pin
0 GPI0 A54
1 GPI1 A63
2 GPI2 A67
3 GPI3 A85
4 GPO0 A93
5 GPO1 B54
6 GPO2 B57
7 GPO3 B63
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