mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 316

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

MSCAN Controller
Technical Data
316
When the msCAN12 module is transmitting, the msCAN12 receives its
own messages into the background receive buffer, RxBG, but does NOT
overwrite RxFG, generate a receive interrupt or acknowledge its own
messages on the CAN bus. The exception to this rule is in loop-back
mode (see
msCAN12 treats its own messages exactly like all other incoming
messages. The msCAN12 receives its own transmitted messages in the
event that it loses arbitration. If arbitration is lost, the msCAN12 must be
prepared to become receiver.
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 17-2. User Model for Message Buffer Organization
msCAN12
msCAN12 Module Control Register 0
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MSCAN Controller
RxBG
RxFG
Tx0
Tx1
Tx2
PRIO
PRIO
PRIO
RXF
TXE
TXE
TXE
MC68HC912DG128 — Rev 3.0
CPU bus
(CMCR0)) where the
MOTOROLA