TC1796
Peripheral Units (Vol. 2 of 2)
Controller Area Network (MultiCAN) Controller
User’s Manual 22-164 V2.0, 2007-07
MultiCAN, V2.0
LOR
Local Offset Register (298
H
) Reset Value: 0000 0000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
LOF
rwh
1514131211109876543210
LOFFR 0 DISC
NEW
DISC
rwh r rh rh
Field Bits Type Description
NEWDISC 0rhNew Discontinuity Bit
This bit indicates that the register LOR has been the
target of a write access for a time master (and that
the contents of LOF or LOFFR could have been
changed). This bit indicates that the next reference
message will be sent with a discontinuity in the
reference mark. It is set automatically when a write
action to LOR is detected. It is cleared when the local
time is captured (at SOF) for the transmission of the
reference message.
0
B
A write access to LOR has not occurred.
1
B
A write access to LOR has occurred.
DISC 1rhDiscontinuity Bit
This bit contains the DISC bit of the reference
message that is sent out (taken into account for a
time master). This bit is set if the NEWDISC bit is 1
when the global time is captured (at SOF) for the
transmission of the reference message. It is cleared
when the reference message has been transferred
correctly.
0
B
The DISC bit in the reference message of the
current time master is 0.
1
B
The DISC bit in the reference message of the
current time master is 1.
LOFFR [15:9] rwh Local Offset Fraction
This bit field contains the fractional part of the local
offset.
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