Datasheet

Inter IC Bus
Technical Data MC68HC912DT128A — Rev 4.0
302 Inter IC Bus MOTOROLA
17.3 IIC Features
The IIC module has the following key features:
• Compatible with I
2
C 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
• Eight-bit general purpose I/O port
A block diagram of the IIC module is shown in Figure 17-1.
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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