Lanner Digital Input/Output - Manual (Page 5)

Software User Manual Version 1.0
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Chapter 1. Introduction
1.1 Features of Lanner DIO and other management utilities
provided by GPIO
Lanner 's DIO (Digital Input/Output) is a general purpose input/output (GPIO). They are
dedicated general-purpose pins that can be configured as either inputs or outputs.
When configured as an output, you can write to an internal register to control the state
driven on the output pin. When configured as an input, you can detect the state of the
input by reading the state of an internal register. These pins are provided by Intel PCH
chipset (like ICH7) or other Super I/O chips such as Fintek F81865 or Winbond
83627UHG. Depending on the chipsets used, commands and available functions vary.
Here we list some common features:
z DIO (Digital Input/output): Lanner DIO utility (via both command line and GUI) is
a simple program which is designed to test or alter the state of the input/output
pins, i.e., switching between high and low.
z PIO: Programmable Input/Output pins. It can be utilized as a LED indicator for
showing the operating state of the designated software or a specific function (such
as the wireless LAN or GPS) of the device.
z Status LED/RunLED (for system operating status)
/AlarmLED/GPS_LED/WirelessLED: Those LED’s behavior can be controlled by
programming the GPIO pins. The availability of specific LED functions varies
depending on the products.
z Hardware Monitor: The hardware monitor is a system health supervision tool. It
monitors several critical parameters in PC hardware, including power supply
voltages, fan speeds, temperatures, and CPU voltage, etc.
z CaseOpen: Caseopen detection detect whether the computer case has been
opened and possibly tampered with. The sample code provided can be used to
enable/disable/reset this function.