General Description

The IT8712F is a Low Pin Count Interface-based highly integrated Super I/O. The IT8712F provides the most commonly used legacy Super I/O functionality plus the latest Environment Control initiatives, such as H/W Monitor, Fan Speed Controller, ITE’s “SmartGuardian” function and Smart Card Reader Interface. The device’s LPC interface complies with Intel “LPC Interface Specification Rev. 1.0”. The IT8712F is ACPI & LANDesk compliant.

Features

„ Low Pin Count Interface

  − Comply with Intel Low Pin Count InterfaceSpecification Rev. 1.0

  − Supports LDRQ#, SERIRQ protocols

  − Supports PCI PME# Interfaces

„ ACPI & LANDesk Compliant

  − ACPI V. 1.0 compliant

  − Register sets compatible with “Plug and Play ISA Specification V. 1.0a”

  − LANDesk 3.X compliant

  − Supports 12 logical devices „ Enhanced Hardware Monitor

  − Built-in 8-bit Analog to Digital Converter

  − 3 thermal inputs from remote thermal resistor or thermal diode or diode-connected transistor

  − 8 voltage monitor inputs (VBAT is measured internally.)

  − 1 chassis open detection input with low power Flip-Flop backed by the battery

  − Watch Dog comparison of all monitored values

  − Provides VID0 – VID5 support for the CPU „ Fan Speed Controller

  − Provides fan on-off and PWM control

  − Supports 5 programmable Pulse Width

Modulation (PWM) outputs

  − 128 steps of PWM modes

  − Monitors 5 fan tachometer inputs „ SmartGuardian Controller

  − Provides programmable fan speed automatic control

  − Supports mix-and-match for temperature inputs and fan speed control outputs

  − Overrides fan speed controller during catastrophic situations

  − Provides over temperature beep tone warning

„ Two 16C550 UARTs

  − Supports two standard Serial Ports

  − Supports IrDA 1.0/ASKIR protocols

  − Supports Smart Card Reader protocols
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