MC68HC912D60A MOTOROLA [Motorola, Inc], MC68HC912D60A Datasheet - Page 292

• Manufacturer Part Number: MC68HC912D60A
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Motorola Interconnect Bus
16.5 Message validation
Technical Data
292
The communication between the MCU and the selected device is valid
when the MCU reads a pull data field having correct codes (excluding
the codes ‘111’ and ‘000’) followed by a square wave signal, having a
frequency of 20kHz, contained in the end-of-frame information.
An MI Bus error is detected when the pull field contains the code ‘111’
followed by the end-of-frame permanently tied to logical state ‘1’. This
means that the communication between the MCU and the selected
device was not accomplished.
Freescale Semiconductor, Inc.
Biphase coded signal
For More Information On This Product,
Biphase detection
Noise detection
Figure 16-2. Biphase coding and error detection
Go to: www.freescale.com
Motorola Interconnect Bus
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MC68HC912D60A — Rev 3.0
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