ADLINK Technology PCI-8254, User Manual

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168 Motion Control Theory
4.10.2.2.2 Table Compare Trigger
Table compare trigger differs from the linear compare trigger in
that compare points can be determined by user. That is, intervals
between compare points are variable. You may set up any four
points (P1~P4) and send triggers when motor reaches each of
them as shown in figure below.
Figure 4-68: Table compare trigger example
Parameters of table compare trigger
0x02 TGR_TCMP0_SRC
Set up compare subject of table comparator
CH0
0x03 TGR_TCMP1_SRC
Set up compare subject of table comparator
CH1
0x04 TGR_TCMP0_DIR
Set up compare direction of table
comparator CH0
0x05 TGR_TCMP1_DIR
Set up compare direction of table
comparator CH1