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MEC1322 Datasheet(PDF) 358 Page - Microchip Technology

Part # MEC1322
Description  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 Datasheet(HTML) 358 Page - Microchip Technology

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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-Linkprotocol 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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