MC68HC12 MOTOROLA [Motorola, Inc], MC68HC12 Datasheet - Page 357

• Manufacturer Part Number: MC68HC12
• Description: The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC912DT128A — Rev 4.0
MOTOROLA
TWRNIF — Transmitter Warning Interrupt Flag
RERRIF — Receiver Error Passive Interrupt Flag
TERRIF — Transmitter Error Passive Interrupt Flag
BOFFIF — BUSOFF Interrupt Flag
1. TWRNIF = (96 < TEC) & RERRIF& TERRIF & BOFFIF
2. RERRIF = (128 < REC < 255) & BOFFIF
3. TERRIF = (128 < TEC < 255) & BOFFIF
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
masked, an Error interrupt is pending while this flag is set.
This bit will be 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
pending while this flag is set.
This bit will be 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
pending while this flag is set.
This bit will be set when the msCAN12 goes into BUSOFF status, due
to the Transmit Error counter exceeding 255. It cannot be cleared
before the msCAN12 has monitored 128*11 consecutive recessive
bits on the bus. 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.
0 = No receiver error passive status has been reached.
1 = msCAN12 went into receiver error passive status.
0 = No transmitter error passive status has been reached.
1 = msCAN12 went into transmitter error passive status.
0 = No BUSOFF status has been reached.
1 = msCAN12 went into BUSOFF status.
MSCAN Controller
(2)
(3)
. If not masked, an Error interrupt is
. If not masked, an Error interrupt is
Programmer’s Model of Control Registers
MSCAN Controller
Technical Data
(1)
. If not
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