mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 313

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

17.4 Message Storage
17.4.1 Background
MC68HC912DG128 — Rev 3.0
MOTOROLA
msCAN12 facilitates a sophisticated message storage system which
addresses the requirements of a broad range of network applications.
Modern application layer software is built upon two fundamental
assumptions:
1. Any CAN node is able to send out a stream of scheduled
2. The internal message queue within any CAN node is organized
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messages without releasing the bus between two messages.
Such nodes will arbitrate for the bus right after sending the
previous message and will only release the bus arbitration is lost.
such that if more than one message is ready to be sent, the
highest priority message will be sent out first.
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CAN station 1
CAN system
MSCAN Controller
TxCAN
Transceiver
msCAN12
Controller
Figure 17-1. The CAN System
RxCAN
CAN station 2
CAN
.....
CAN station n
MSCAN Controller
Message Storage
Technical Data
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