MEC1404 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MEC1404

Keyboard and Embedded Controller Products for Notebook PC

Microchip Technology 

MEC140X/1X

1.4 System Block Diagrams

Note:

1.4.1

Not all features shown are available on all devices. Refer to Products on page 3 for a list of the features by

device.

LPC HOST SYSTEM BLOCK DIAGRAM

CPU

S0 (Main)

Power

Supply

PECI 3.0

Interface

VCC_PWRGD

Fans or

General

Use

TACHs (2)

PWMs (8)

PCH

A20M, KBRST,

nRESET_OUT,

nRESET_IN, SMI,

SMBus

SCI, SIRQ,

RSMRST# (GPIO)

2‐pin Debug

32Khz

UART

2‐pin Debug ICSP or JTAG

Trace FIFO

Debug Port

TFDP

Breathing PWM

MEC14xx

32‐Bit PC Embedded

Controller

LEDs

PS/2

(3x)

KeyScan

SMBus

SMBus/I2C

PS/2

SPI I/F

PS/2

Mouse

PS/2

Keyboard

Keyboard

Battery

Pack

SMBus/I2C

Device(s)

SPI Interface

(3.3V Only)

Shared

Flash

Voltage Monitoring

ADCs (8) (e.g., Thermistors,

Power Supplies)

Voltage Generator

DACs (2) (e.g., DC Controlled

Fans)

VCI_OUT

SYSPWR_PRES

S5 (Suspend)

Power Supply

VCI_OVRD_IN ACAVCHARGER

VCI_IN[1:0]# Power Button(s)

BGPO

Battery Powered

GPIO

BC‐Link (2x)

GPIOs

BC‐Link

Companion

Chip(s)

Private SPI Flash

(accessible on

KeyScan pins)

DS00001956D-page 8

 2015 - 2016 Microchip Technology Inc.

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