Kontron COMe-bCD2 - Manual (Page 34)

5 Special Features
Kontron User's Guide ETXexpress® CD 34
5 Special Features
5.1 Watchdog Timer
This feature is implemented in the Xilinx XC9536XL microcontroller. You can configure the Watchdog
Timer (WDT) in BIOS setup to start after a set amount of time after power-on boot. The WDT can also be
controlled by the JIDA32 Library API (Refer to Appendix F: JIDA Standard). The application software
should strobe the WDT to prevent its timeout. Upon timeout, the WDT resets and restarts the system. This
provides a way to recover from program crashes or lockups.
Configuration
You can program the timeout period for the watchdog timer in two ranges:
1-second increments from 1 to 255 seconds
1-minute increments from 1 to 255 minutes
Contact Kontron Embedded Modules technical support for information on programming and operating
the WDT.
5.2 General Purpose Input and Output
COMe-bCD2 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. Please refer to the JIDA32 manual in the driver
download packet on our website.