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6 general purpose input and output (gpio), 8 acpi suspend modes and resume events – Kontron COMe-cPV2(v1.4) User Manual

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Kontron microETXexpress-PV User’s Guide



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date are set accordingly. Pressing F2 sets the date to the BIOS build date
and the hour is set to 00:00:00. The default values are reloaded and the
system will boot on the default bootable device.

5.6

General Purpose Input and Output (GPIO)

The microETXexpress®-PV COM provides eight GPIOs (always enabled)that can be
accessed through the module connector described in the pin-out lists, in
Section 4.1. The GPIO viewer can be enabled in the BIOS setup.

NOTE:

GPIO cannot drive applications faster than 2 msec. Data transfer

rates up to 1 kHz maximum are recommended.

Table 19: GPIO COM Express Pin-Outs

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

5.7

I

2

C

The microETXexpress®-PV COM integrates uses an I

2

C bus provided via the

Intel® ICH8M chipset. For the External I²C Speed it will always be 100kHz.
No multi-master support is available.

5.8

ACPI Suspend Modes and Resume Events

The microETXexpress®-PV COM supports the following suspend modes:

»

S0 (Full on)

»

S3 (Suspend to RAM)

»

S4 (Suspend to Disk)

»

S5 /WOL(power off, WOL enabled)

»

S5 (power off, WOL disabled)

Events that Resume the System from S3