Datasheet

Table Of Contents
MSCAN
MC9S12DP256 — Revision 1.1
MSCAN
Modes of Operation
Normal Modes The MSCAN module behaves as described within this specification in all
normal modes.
Special Modes The MSCAN module behaves as described within this specification in all
special modes.
Emulation Modes In all emulation modes, the MSCAN module behaves just like normal
modes as described within this specification.
Listen-Only Mode In an optional bus monitoring mode (Listen-Only), the CAN node is able
to receive valid data frames and valid remote frames, but it sends only
‘recessive’ bits on the CAN bus. In addition it cannot start a transmision.
If the MAC sublayer is required to send a ‘dominant’ bit (ACK bit,
overload flag, active error flag), the bit is rerouted internally so that the
MAC sublayer monitors this ‘dominant bit, although the CAN bus may
remain in recessive state externally.
Security Modes The MSCAN module has no security features.
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
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