MC68HC08AZ60A Datasheet, PDF (384/480 Pages) Motorola, Inc – Microcontrollers

MSCAN08 Controller (MSCAN08)
TWRNIF — Transmitter Warning Interrupt Flag
This flag is set when the MSCAN08 goes into warning status due to
the transmit error counter (TEC) exceeding 96 and neither one of the
error interrupt flags or the bus-off interrupt flag is set⁽¹⁾. If not masked,
an error interrupt is pending while this flag is set.
1 = MSCAN08 has gone into transmitter warning status.
0 = No transmitter warning status has been reached.
RERRIF — Receiver Error Passive Interrupt Flag
This flag is set when the MSCAN08 goes into error passive status due
to the receive error counter exceeding 127 and the bus-off interrupt
flag is not set⁽²⁾. If not masked, an Error interrupt is pending while this
flag is set.
1 = MSCAN08 has gone into receiver error passive status.
0 = No receiver error passive status has been reached.
TERRIF — Transmitter Error Passive Interrupt Flag
This flag is set when the MSCAN08 goes into error passive status due
to the Transmit Error counter exceeding 127 and the Bus-off interrupt
flag is not set⁽³⁾. If not masked, an Error interrupt is pending while this
flag is set.
1 = MSCAN08 went into transmit error passive status.
0 = No transmit error passive status has been reached.
BOFFIF — Bus-Off Interrupt Flag
This flag is set when the MSCAN08 goes into bus-off status, due to
the transmit error counter exceeding 255. It cannot be cleared before
the MSCAN08 has monitored 128 times 11 consecutive ‘recessive’
bits on the bus. If not masked, an Error interrupt is pending while this
flag is set.
1 = MSCAN08has gone into bus-off status.
0 = No bus-off status has bee reached.
Advance Information
384
1. Condition to set the flag: TWRNIF = (96 ð TEC) & RERRIF & TERRIF & BOFFIF
2. Condition to set the flag: RERRIF = (127 ð REC ð 255) & BOFFIF
3. Condition to set the flag: TERRIF = (128 ð TEC ð 255) & BOFFIF
MSCAN08 Controller (MSCAN08)
MC68HC08AZ60A — Rev 0.0
MOTOROLA