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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