Bosch PPP6 B8 Series Manual de Serviço descarregar pdf (Página 336)

MSCAN Controller

Technical Data MC68HC912D60A — Rev. 3.1

336 MSCAN Controller Freescale Semiconductor

RWRNIF — Receiver Warning Interrupt Flag

This flag is set when the msCAN12 goes into warning status due to

the Receive Error counter (REC) 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.

0 = No receiver warning status has been reached.

1 = msCAN12 went into receiver warning status.

TWRNIF — Transmitter Warning Interrupt Flag

This bit will be set when the msCAN12 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

(2)

. If not

masked, an Error interrupt is pending while this flag is set.

0 = No transmitter warning status has been reached.

1 = msCAN12 went into transmitter warning status.

RERRIF — Receiver Error Passive Interrupt Flag

This flag is set when the msCAN12 goes into error passive status due

to the Receive Error counter (REC) 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.

0 = No receiver error passive status has been reached.

1 = msCAN12 went into receiver error passive status.

TERRIF — Transmitter Error Passive Interrupt Flag

This flag is set when the msCAN12 goes into error passive status due

to the Transmit Error counter (TEC) exceeding 127 and the Bus-Off

interrupt flag is not set

(4)

. If not masked, an Error interrupt is pending

while this flag is set.

0 = No transmitter error passive status has been reached.

1 = msCAN12 went into transmitter error passive status.

1. Condition to set the flag: RWRNIF = (96 ≤ REC ≤ 127) & RERRIF & TERRIF & BOFFIF

2. Condition to set the flag: TWRNIF = (96 ≤ TEC ≤ 127) & RERRIF & TERRIF & BOFFIF

3. Condition to set the flag: RERRIF = (128 ≤ REC ≤ 255) & BOFFIF

4. Condition to set the flag: TERRIF = (128 ≤ TEC ≤ 255) & BOFFIF

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