SM-Applications Modules & Motion Processors User Guide 45
Issue Number: 4
Safety
Information
Introduction Installation
Getting
Started
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Marker
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Reference
Index
b4 CS
Clock source:
0=internal clock
1=external clock provided on DIGIN1.
b5-b6 C
Internal clock pre-scale select (ignored if external clock selected):
0=rate /1 (28.7MHz)
1=rate /4
2=rate /16
3=rate /64
b7-b8 M
Timer mode:
0=Free Running mode
The selected clock drives the counter. The TI flag is set on wrap-
around.
1=Capture mode 1
The selected clock drives the counter. A rising edge transition on
DIGIN0 causes the current counter value to be latched into the TIMER
CAPTURE CACHE parameter and the TI flag is set. The counter then
continues incrementing (TI is not set on wrap-around).
2=Capture mode 2
The selected clock drives the counter. A falling edge transition on
DIGIN0 causes the current counter value to be latched into the TIMER
CAPTURE CACHE parameter and the TI flag is set. The counter then
continues incrementing (TI is not set on wrap-around).
Apps Apps Lite Apps Plus Lite V2 ST Plus ST Indexer
Pr 85.02 Timer Unit Status Word
Access RO Range 0 to 3
Default N/A Update Rate Immediate
Table 5-4 Status Word - Pr 85.02
Bit Symbol Function
b0 TI
Timer event flag:
0=No event has occurred
1=An event has occurred (see description for Pr 85.01)
Note: The TI bit is automatically cleared by the operating system if TE flag
in Pr 85.01 has a non-zero value. Otherwise it is cleared when the status
word is read.
b1 OV
Wrap-around flag
0=Wrap-around has not occurred
1=Counter wrap-around has occurred
Note: This flag is valid for ALL timer modes and is automatically cleared
when the status register is read.
Apps Apps Lite Apps Plus Lite V2 ST Plus ST Indexer
Table 5-3 Control Word - Pr 85.01
Bit Symbol Function
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