MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 358

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MSCAN08 Controller (MSCAN08)
21.7.1 Interrupt Acknowledge
Advance Information
358
NOTE:
Interrupts are directly associated with one or more status flags in either
the MSCAN08 receiver flag register (CRFLG) or the MSCAN08
transmitter flag register (CTFLG). Interrupts are pending as long as one
of the corresponding flags is set. The flags in the above registers must
be reset within the interrupt handler in order to handshake the interrupt.
The flags are reset through writing a ‘1’ to the corresponding bit position.
A flag cannot be cleared if the respective condition still prevails.
Bit manipulation instructions (BSET) shall not be used to clear interrupt
flags.
– 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
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.
MSCAN08 Controller (MSCAN08)
MC68HC08AZ60A — Rev 0.0
MOTOROLA