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SM320F2808-EP Datasheet, PDF (57/118 Pages) Texas Instruments – Digital Signal Processors | |||
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SM320F2808-EP, SM320F2806-EP
SM320F2801-EP
Digital Signal Processors
SGLS316A â MARCH 2006 â REVISED FEBRUARY 2007
4.7 Enhanced Controller Area Network (eCAN) Modules (eCAN-A and eCAN-B)
The CAN module has the following features:
⢠Fully compliant with CAN protocol, version 2.0B
⢠Supports data rates up to 1 Mbps
⢠Thirty-two mailboxes, each with the following properties:
â Configurable as receive or transmit
â Configurable with standard or extended identifier
â Has a programmable receive mask
â Supports data and remote frame
â Composed of 0 to 8 bytes of data
â Uses a 32-bit time stamp on receive and transmit message
â Protects against reception of new message
â Holds the dynamically programmable priority of transmit message
â Employs a programmable interrupt scheme with two interrupt levels
â Employs a programmable alarm on transmission or reception time-out
⢠Low-power mode
⢠Programmable wake-up on bus activity
⢠Automatic reply to a remote request message
⢠Automatic retransmission of a frame in case of loss of arbitration or error
⢠32-bit local network time counter synchronized by a specific message (communication in conjunction
with mailbox 16)
⢠Self-test mode
â Operates in a loopback mode receiving its own message. A "dummy" acknowledge is provided,
thereby eliminating the need for another node to provide the acknowledge bit.
NOTE
For a SYSCLKOUT of 100 MHz, the smallest bit rate possible is 15.6 kbps.
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Peripherals
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