MC68HC05L28B MOTOROLA [Motorola, Inc], MC68HC05L28B Datasheet - Page 81

• Manufacturer Part Number: MC68HC05L28B
• Description: Flexible general-purpose microcomputer
• Manufacturer: MOTOROLA [Motorola, Inc]

I
between devices. Being a two-wire device, the I
connections between devices, and eliminates the need for an address decoder.
The bus is suitable for applications involving frequent communications between a number of
devices over short distances. The number of devices connected to the I
maximum bus capacitance of 400pF; it has a maximum data rate of 100 kbits per second.
The I
prevent data corruption if two or more masters attempt to control the bus simultaneously. This
feature provides the capability for complex applications with multiprocessor control. It may also be
used for rapid testing and alignment of end products via external connections to an assembly line
computer.
The I
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MC68HC05L28
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C-bus is a two-wire, bidirectional serial bus that provides a simple, efficient way to exchange data
Multi-master operation
Software-programmable for one of 32 different serial clock frequencies
Software-selectable acknowledge bit
Interrupt-driven, byte-by-byte data transfer
Arbitration-lost-driven interrupt with automatic switching from master to slave mode
Calling address identification interrupt
Generates/detects the START or STOP signal
Repeated START signal generation
Generates/recognizes the acknowledge bit
Bus busy detection
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C-bus function is enabled by the MEN bit in the I
C-bus system is a true multi-master bus including collision detection and arbitration to
I
2
C-bus features
I
2
C-BUS
I
2
C-BUS
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2
C-bus minimizes the need for large numbers of
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C-bus control register (MCR).
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C-bus is limited only by a
MOTOROLA
TPG
8-1
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