MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 404

• Manufacturer Part Number: MC68HC908AZ32ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MSCAN Controller (MSCAN08)
24.7 Interrupts
Advance Information
404
The MSCAN08 supports four interrupt vectors mapped onto eleven
different interrupt sources, any of which can be individually masked (for
details see
to
MSCAN08 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 received successfully and
loaded into the foreground receive buffer. This interrupt will be
emitted immediately after receiving the EOF symbol. The RXF flag
is set.
Wakeup Interrupt: An activity on the CAN bus occurred during
MSCAN08 internal sleep mode or power-down mode (provided
SLPAK = WUPIE = 1).
Error Interrupt: An overrun, error, or warning condition occurred.
The receiver flag register (CRFLG) will indicate 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 MSCAN08 has
gone to error passive state.
exceeded the error passive limit of 127 and MSCAN08 has
gone to error passive state.
MSCAN08 has gone to bus off state.
MSCAN Controller (MSCAN08)
MSCAN08 Receiver Flag Register (CRFLG)
Go to: www.freescale.com
on page 396, has occurred.
on page 436).
68HC908AZ32A — Rev 0.0
Receive
on page 430,
MOTOROLA