Texas Instruments TMS320 2833 Series User Manual

CANBus
CANcontroller
MessageController
CANProtocolKernel(CPK)
CAN Transceiver
RX TX
CPU
ReceiveBuffer
A
TransmitBuffer
A
www.ti.com The CAN Network and Module
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SPRUI07–March 2020
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Controller Area Network (CAN)
Figure 13-3. Architecture of the eCAN Module
A The receive and transmit buffers are transparent to the user and are not accessible by user code.
One function of the CPK is to decode all messages received on the CAN bus and to transfer these
messages into a receive buffer. Another function is to transmit messages on the CAN bus according to the
CAN protocol.
The message controller of a CAN controller is responsible for determining if any message received by the
CPK must be preserved for the CPU use (that is, copied into the mailbox RAM) or be discarded. At the
initialization phase, the CPU specifies to the message controller all message identifiers used by the
application. The message controller is also responsible for sending the next message to transmit to the
CPK according to the message’s priority.

Texas Instruments TMS320 2833 Series Specifications

General

Brand	Texas Instruments
Model	TMS320 2833 Series
Category	Controller
Language	English