Special features, Watchdog timer (wdt), General purpose input and output (gpio) – Kontron COMe-cTH6 User Manual

Page 39: 6special features, 1 watchdog timer (wdt), 2 general purpose input and output (gpio)

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33

COMe-cTH6 User’s Guide

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6

Special Features

6.1 Watchdog Timer (WDT)

The watchdog timer is managed via the CPLD component, the Altera EPM1270 CPLD. The implementation complies
with the COM Express® specification. Timer modes 1, 2, and 3 are supported. For additional implementation
information, refer to the

PICMG COM Express® Module Base Specification.

6.2 General Purpose Input and Output (GPIO)

The COMe-cTH6 COM provides four interrupt-capable general purpose inputs and four general purpose outputs that
can be accessed through the COM Express connector as defined in the pin-out lists, in Section 4.1. The GPIO
controller is in the CPLD and the interface can be enabled in the BIOS setup.

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

Table 11: COM Express GPIO Pin-Outs

DRAFT COPY FOR REVIEW ONLY


DRAFT COPY FOR REVIEW ONLY













































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