TC1796
Peripheral Units (Vol. 2 of 2)
Micro Link Interface (MLI)
User’s Manual 23-10 V2.0, 2007-07
MLI, V2.0
23.1.2 MLI Frame Structure
A frame is a message sent by an MLI transmitter to an MLI receiver. Depending on the
desired behavior, different frame types exist:
• Copy Base Address Frame to define location and size of a Remote Window (see
Page 23-12)
• Write Offset and Data Frame to transmit the write offset and the write data (see
Page 23-13)
• Optimized Write Frame to transmit write data without write offset in case of an
address prediction match (see Page 23-14)
• Discrete Read Frame to transmit read request with the read offset (see Page 23-15)
• Optimized Read Frame to transmit the read request without read offset in case of an
address prediction match (see Page 23-16)
• Command Frame to transmit a command, e.g. setup information or MLI service
request generation (see Page 23-17)
• Answer Frame to transmit the data previously requested by a Read Frame (see
Page 23-18)
The local/remote structure of an MLI connection between two microcontrollers requires
a transmitter unit and a receiver unit in both MLI modules (local and remote) for
communication.
Figure 23-7 Logic Frame Assignment to Local/Remote Controller
MCA05877
Copy Base Address Frame
Transmitter
Receiver
MLI Module
Local Controller
Write Offset and Data Frame
Discrete Read Frame
Command Frame
Optimized Write Frame
Optimized Read Frame
Answer Frame
Receiver
Transmitter
MLI Module
Remote Controller
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