– Supports simultaneous master and slave operation
■ Four I
2
C modes
– Master transmit
– Master receive
– Slave transmit
– Slave receive
■ Two 8-entry FIFOs for receive and transmit data
– FIFOs can be independently assigned to master or slave
■ Four transmission speeds:
– Standard (100 Kbps)
– Fast-mode (400 Kbps)
– Fast-mode plus (1 Mbps)
– High-speed mode (3.33 Mbps)
■ Glitch suppression
■ SMBus support through software
– Clock low timeout interrupt
– Dual slave address capability
– Quick command capability
■ Master and slave interrupt generation
– Master generates interrupts when a transmit or receive operation completes (or aborts due
to an error)
– Slave generates interrupts when data has been transferred or requested by a master or when
a START or STOP condition is detected
■ Master with arbitration and clock synchronization, multimaster support, and 7-bit addressing
mode
■ Efficient transfers using Micro Direct Memory Access Controller (µDMA)
– Separate channels for transmit and receive
– Ability to execute single data transfers or burst data transfers using the RX and TX FIFOs in
the I
2
C
June 18, 201466
Texas Instruments-Production Data
Architectural Overview
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