TC1796
Peripheral Units (Vol. 2 of 2)
Controller Area Network (MultiCAN) Controller
User’s Manual 22-78 V2.0, 2007-07
MultiCAN, V2.0
ALERT 5rwhAlert Warning
The ALERT bit is set upon the occurrence of one of
the following events (the same events which also
trigger an alert interrupt if ALIE is set):
• A change of bit NSRx.BOFF
• A change of bit NSRx.EWRN
• A List Length Error, which also sets bit NSRx.LLE
• A List Object Error, which also sets bit NSRx.LOE
• Bit INIT has been set by hardware
ALERT must be cleared by software (write 0). Writing
1 has no effect.
EWRN 6rhError Warning Status
0
B
No warning limit exceeded.
1
B
One of the error counters REC or TEC reached
the warning limit EWRNLVL.
BOFF 7rhBus-off Status
0
B
CAN controller is not in the bus-off state.
1
B
CAN controller is in the bus-off state.
LLE 8rwhList Length Error
0
B
No List Length Error since the last (most recent)
clearance of the flag.
1
B
A List Length Error has been detected during
message acceptance filtering. The number of
elements in the list that belongs to this CAN
node differs from the list SIZE given in the list
termination pointer.
LLE must be cleared by software (write 0). Writing 1
has no effect.
LOE 9rwhList Object Error
0
B
No List Object Error since the last (most recent)
clearance of the flag.
1
B
A List Object Error has been detected during
message acceptance filtering. A message
object with wrong LIST index entry in the
Message Object Control Register has been
detected.
LOE must be cleared by software (write 0). Writing 1
has no effect.
Field Bits Type Description
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