TC1796
Peripheral Units (Vol. 2 of 2)
Controller Area Network (MultiCAN) Controller
User’s Manual 22-74 V2.0, 2007-07
MultiCAN, V2.0
Field Bits Type Description
INIT 0rwhNode Initialization
0
B
Clearing bit INIT enables the participation of the
node in the CAN traffic.
If the CAN node is in the bus-off state, the ongoing
bus-off recovery (which does not depend on the
INIT bit) is continued. With the end of the bus-off
recovery sequence, the CAN node is allowed to
take part in the CAN traffic if INIT has been cleared
by software.
If the CAN node is not in the bus-off state, a
sequence of 11 consecutive recessive bits must be
detected before the node is allowed to take part in
the CAN traffic.
1
B
Setting this bit terminates the participation of this
node in the CAN traffic. Any ongoing frame transfer
is cancelled and the transmit line goes recessive.
If the CAN node is in the bus-off state, then the
running bus-off recovery sequence is continued. If
the INIT bit is still set after the successful
completion of the bus-off recovery sequence, i.e.
after detecting 128 sequences of 11 consecutive
recessive bits (11 × 1), then the CAN node leaves
the bus-off state but remains inactive as long as
INIT remains set.
Bit INIT is automatically set when the CAN node enters
the bus-off state.
TRIE 1rwTransfer Interrupt Enable
TRIE enables the transfer interrupt of CAN node x. This
interrupt is generated after the successful reception or
transmission of a CAN frame in node x.
0
B
Transfer interrupt is disabled.
1
B
Transfer interrupt is enabled.
Bit field NIPRx.TRINP selects the interrupt output line
which becomes activated at this type of interrupt.
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