MEC1322 datasheet(358/456 Pages) MICROCHIP

Il numero della parte	MEC1322

Spiegazioni elettronici	Keyboard and Embedded Controller for Notebook PC

PDF	456 Pages

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Produttore elettronici	MICROCHIP [Microchip Technology]

Homepage	http://www.microchip.com

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MEC1322

DS00001719D-page 358

 2014 - 2015 Microchip Technology Inc.

31.0 BC-LINK MASTER

31.1

Overview

This block provides BC-Link

 connectivity to a slave device. The BC-Link protocol includes a start bit to signal the

beginning of a message and a turnaround (TAR) period for bus transfer between the Master and Companion devices.

31.2

References

No references have been cited for this feature.

31.3

Terminology

There is no terminology defined for this section.

31.4

Interface

This block is designed to be accessed externally via the pin interface and internally via a registered host interface.

31.5

Signal Description

FIGURE 31-1:

I/O DIAGRAM OF BLOCK

TABLE 31-1:

SIGNAL DESCRIPTION TABLE

Name

Direction

Description

BCM_CLK

Output

BC-Link output clock

BCM_DAT

Input/Output

Bidirectional data line

BCM_INT#

Input

Input from the companion device

Note:

A weak pull-up resistor is recommended on the data line (100K

Ω).

BC-Link Master

Interrupts

Power, Clocks and Reset

Interface

Signal Description

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