IT8502F View Datasheet(PDF) - ITE Tech. INC.

Part Name

Description

Manufacturer

IT8502F

Embedded Controller

ITE Tech. INC. 

1. Features

8032 Embedded Controller

− Twin Turbo version/3-stage pipeline

− 9.2 MHz for EC domain and 8032 internal timer

− Variable frequency range to gain the maximum

8032 code-fetch performance

− Instruction set compatible with standard 8051/2

LPC Bus Interface

− Compatible with the LPC specification v1.1

− Supports I/O read/write

− Supports Memory read/write

− Supports FWH read/write

− Serial IRQ

Flash Interface

− Behaves as a LPC/FWH memory device

(HLPC)

− Supports external serial flash with 32.3~64.5

MHz

− Up to 16M bytes Flash space shared by the host

and EC side (serial flash)

− HLPC: Hardware read protection plus hardware

/ software write protection

SMBus Controller

− SMBus spec. 2.0

− 4 SMBus masters + 1 slave

− 4 SMBus channels

− Compatible with I2C cycles

System Wake Up Control

− Modem RI# wake up

− Telephone RING# wake up

− IRQ/SMI routing

EC Wake Up Control

− 48 external/internal wake up events

Interrupt Controller

− 72 interrupt events to EC

− Fixed priority

Features

Timer / Watch Dog Timer

− 3 internal 16-bit multi-function timers inside

8032, which is based on EC clock

− 1 internal WDT inside 8032, which is based on

EC clock

− 1 external 16-bit timer and 1 external 24-bit

timer in ETWD module, which are based on

32.768 k clock source

− 1 external 16-bit WDT in ETWD module, which

is based on 32.768 k clock source

UART

− 1 full duplex UART inside 8032

− 1 standard serial ports (legacy 16C550 COM1)

− Baud rate up to 460800

ACPI Power Management Channel

− 2 Power management channels

− Compatible and enhanced mode

Battery-backed SRAM

− 192-byte battery-backed memory space

− Supports power-switch circuit

GPIO

− Supports 73-port GPIO

− Programmable pull up/pull down

− Schmitt trigger for input

External GPIO Controller (EGPC)

− Communicate with 4 IT8301 chips

− Each IT8301 supports 38 GPIO ports

KBC Interface

− 8042 style KBC interface

− Legacy IRQ1 and IRQ12

− Fast A20G and KB reset

ADC

− 12 ADC channels (8 external)

− 10-bit resolution (+/- 4LSB)

− Digital filter for noise reduction

DAC

− 6 DAC channels

− 8-bit DAC

www.ite.com.tw

1

Specifications subject to Change without Notice

IT8502E/F/G V0.7.7

ITPM-PN-200855

By Jimmy Hou, 9/1/2008

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