IT8502E中文資料聯(lián)陽數(shù)據(jù)手冊(cè)PDF規(guī)格書

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

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

PWM

? 8 PWM channels

? Base clock frequency is 32.768 kHz

? 8 duty cycle resolution

? 8/16-bit common input clock prescaler

? 4 prescalers for 8 PWM output used for devices

with different frequencies

? 2 Tachometers for measuring fan speed

TMR

? Supports four channels

? Supports 8-bit/16-bit pulse mode, and toggle

mode

PS/2 Interface

? 3 PS/2 interface

? Hardware/Software mode selection

KB Matrix Scan

? Hardware keyboard scan

? 18x8 keyboard matrix scan

SPI Slave Interface (SSPI)

? 1-channel SPI Master, Freq between 575 kHz

and 4.6MHz

? 4-wire or 3-wire (bi-directional data) I/F

? 8-bit or 1-bit transaction

? SPI Mode 0, 1, 2, 3

In-System Programming

? ISP via parallel port interface on existing KBS

connector

? Fast flash programming with software provided

by ITE

Power Consumption

? Standby with Sleep mode current: 250 μA

Package

? LQFP 128L / QFP 128L / TFBGA 128