MEC1404 Datasheet, PDF (417/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
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.
FIGURE 31-1:
I/O DIAGRAM OF BLOCK
Interface
BC-Link Master
Signal Description
Power, Clocks and Reset
Interrupts
31.5 Signal Description
Note: ‘x’ in the Pin Name represents the peripheral instance number.
TABLE 31-1: SIGNAL DESCRIPTION TABLE
Name
BCM_CLKx
BCM_DATx
BCM_INTx#
Direction
Output
Input/Output
Input
Description
BC-Link output clock
Bidirectional data line
Input from the companion device
 2015 - 2016 Microchip Technology Inc.
DS00001956D-page 417