TC1796
Peripheral Units (Vol. 2 of 2)
Controller Area Network (MultiCAN) Controller
User’s Manual 22-135 V2.0, 2007-07
MultiCAN, V2.0
Note: The message transmit settings of a valid transmit control entry overrule the
previously stored transmit settings and may also overrule the transmit acceptance
filtering of the message objects for the next time mark (depending on bit
ALTMSG). As a result, the use of more than one valid transmit control entry
between two time mark entries should be avoided.
ALTMSG [26:25] rw Alternative Message
This bit field determines which message object will
be transmitted.
00
B
If the message object number delivered by this
entry is not valid for transmission, no message
will be sent.
01
B
The message object number delivered by this
entry is not taken into account for
transmission, the message object found by the
transmit acceptance filtering will be sent if it is
valid.
10
B
If the message object delivered by this entry is
not valid for transmission, while the message
object transmit acceptance filtering delivered a
valid object, the latter one will be sent out.
11
B
Reserved
EC [31:28] rw Entry Code
The entry code EC = 0100
B
defines this scheduler
memory entry as a transmit control entry.
0 [7:6],
[15:14],
27
r Reserved; read as 0; should be written with 0. Bits
are “don’t care” for scheduler operation when
EC = 0100
B
.
Field Bits Type Description
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