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