M0518 Datasheet, PDF (50/72 Pages) List of Unclassifed Manufacturers – 36/68 Kbytes flash, 8K bytes SRAM

NuMicro M0518 Series Datasheet
6.12 I²C Serial Interface Controller (I²C)
6.12.1 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.
6.12.2 Features
The I²C bus uses two wires (I2Cn_SDA and I2Cn_SCL) to transfer information between devices
connected to the bus. The main features of the I²C bus include:
 Supports up to two I²C serial interface controller
 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
 Built-in a 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
Feb 08, 2017
Page 50 of 72
Revision 1.01