Functional Description

The core supports master and slave modes.

The I²C core consists of:

I²C master—Top module wrapper that predefines the I²C core to master mode.
I²C slave—Top module wrapper that predefines the I²C core to slave mode.
I²C master/slave controller—I²C core logic.
Microcontroller inbound data register (MIDR)—TX data register.
Microcontroller outbound data register (MODR)—RX data register.
Microcontroller address data register (MADR)—I²C slave address register.

Figure 1. I²C Master System Block Diagram

Figure 2. I²C Slave System Block Diagram