mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 274

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

Inter-Integrated Circuit (IICV2)
12.1.1
The IIC includes these distinctive features:
12.1.2
A brief description of the IIC in the various MCU modes is given here.
12-2
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Compatible with IIC bus standard
Multi-master operation
Software programmable for one of 64 different serial clock frequencies
Software selectable acknowledge bit
Interrupt driven byte-by-byte data transfer
Arbitration lost interrupt with automatic mode switching from master to slave
Calling address identification interrupt
Start and stop signal generation/detection
Repeated start signal generation
Acknowledge bit generation/detection
Bus busy detection
General call recognition
10-bit address extension
Run mode — This is the basic mode of operation. To conserve power in this mode, disable the
module.
Wait mode — The module continues to operate while the MCU is in wait mode and can provide a
wake-up interrupt.
Stop mode — The IIC is inactive in stop3 mode for reduced power consumption. The stop
instruction does not affect IIC register states. Stop2 resets the register contents.
Features
Modes of Operation
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor