M0564LE4AE Datasheet, PDF (95/161 Pages) List of Unclassifed Manufacturers – 32-BIT MICROCONTROLLER

M0564
6.11 I²C Serial Interface Controller (I²C)
6.11.1 Overview
I²C is a two-wire, bi-directional serial bus that provides a simple and efficient method of data
exchange between devices. The I²C standard is a true multi-master bus including collision
detection and arbitration that prevents data corruption if two or more masters attempt to control
the bus simultaneously.
There are two sets of I²C controllers which support Power-down wake-up function.
6.11.2 Features
The I²C bus uses two wires (SDA and SCL) to transfer information between devices connected to
the bus. The main features of the I²C bus include:
 Supports up to two I²C ports
 Master/Slave mode
 Bidirectional data transfer between masters and slaves
 Multi-master bus (no central master)
 Arbitration between simultaneously transmitting masters without corruption of serial data
on the bus
 Serial clock synchronization allow devices with different bit rates to communicate via one
serial bus
 Serial clock synchronization used as a handshake mechanism to suspend and resume
serial transfer
 Built-in 14-bit time-out counter requesting the I²C interrupt if the I²C bus hangs up and
timer-out counter overflows
 Programmable clocks allow for versatile rate control
 Supports 7-bit addressing mode
 Supports multiple address recognition ( four slave address with mask option)
 Supports Power-down wake-up function
 Supports PDMA with one buffer capability
 Supports two-level buffer function
 Supports setup/hold time programmable
May 05, 2017
Page 95 of 161
Rev 1.00