TC1796
Peripheral Units (Vol. 2 of 2)
Controller Area Network (MultiCAN) Controller
User’s Manual 22-163 V2.0, 2007-07
MultiCAN, V2.0
Note: With a reference message, the counting of the columns restarts at 0.
CYCTMR
Cycle Time Register (294
H
) Reset Value: 0000 0000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0CSM0BCC
rrhrrh
1514131211109876543210
CYCTM
rh
Field Bits Type Description
CYCTM [15:0] rh Cycle Time
The cycle time indicates the time already elapsed in
the current basic cycle.
It is calculated by LTR.LT - REFMR.REFM.
In the case of a negative result (overflow of LTR.LT),
the result is corrected.
BCC [21:16] rh Basic Cycle Count
This bit field indicates the number of the current
basic cycle. It is incremented after each correctly
transferred reference message.
CSM [29:24] rh Column of System Matrix
This bit field indicates the number of the current
column of the system matrix. It is incremented when
the current cycle time becomes equal to the stored
time mark (indicating the start of the next column).
0 [23:22],
[31:30]
r Reserved
Read as 0; should be written with 0.
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