The BK-3220 Serial I²C master is designed to support serial interfaces with various I²C-compliant devices. It allows firmware to configure the serial I²C interface to different modes to support a number of external serial peripheral devices. The I²C master is designed to support 8-bit devices. Address and device address width are programmable. Transfers can also be single-byte and burst transfers.

• Programmable general-purpose serial controller
• Supports the synchronous inter-integrated circuits (I²C) serial protocol version 1.0
• Bi-directional data transfer
• Device address optionally transmitted with data address
• Programmable device address width up to 8-bit
• Programmable address width up to 8-bit
• Fixed data width of 8 bits
• Sequential (burst) byte-read and byte-write capability
• CoreFrame® SOC integration architecture