MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 314
MC68HC912D60
Manufacturer Part Number
MC68HC912D60
Description
Microcontrollers
Manufacturer
Motorola
Datasheet
1.MC68HC912D60.pdf
(460 pages)
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MSCAN Controller
17.6 Interrupts
Technical Data
314
The msCAN12 supports four interrupt vectors mapped onto eleven
different interrupt sources, any of which can be individually masked (for
details see
Transmitter Control Register
•
•
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
Transmit interrupt: At least one of the three transmit buffers is
empty (not scheduled) and can be loaded to schedule a message
for transmission. The TXE flags of the empty message buffers are
set.
Receive interrupt: A message has been successfully received and
loaded into the foreground receive buffer. This interrupt is
generated immediately after receiving the EOF symbol. The RXF
flag is set.
Wake-up interrupt: An activity on the CAN bus occurred during
msCAN12 internal SLEEP mode.
Error interrupt: An overrun, error or warning condition occurred.
The receiver flag register (CRFLG) indicates one of the following
conditions:
– Overrun: an overrun condition as described in
– Receiver warning: the receive error counter has reached the
– Transmitter warning: the transmit error counter has reached
– Receiver error passive: the receive error counter has
– Transmitter error passive: the transmit error counter has
– Bus off: the transmit error counter has exceeded 255 and
Structures
CPU warning limit of 96.
the CPU warning limit of 96.
exceeded the error passive limit of 127 and msCAN12 has
gone to error passive state.
exceeded the error passive limit of 127 and msCAN12 has
gone to error passive state.
msCAN12 has gone to BUSOFF state.
msCAN12 Receiver Flag Register (CRFLG)
Go to: www.freescale.com
MSCAN Controller
has occurred.
(CTCR)):
MC68HC912D60A — Rev 3.0
to
Receive
msCAN12
MOTOROLA
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