Spectrum Brands MC.31XX - Manual (Page 75)

Trigger modes and appendant registers Channel Trigger
(c) Spectrum GmbH 75
Channel window trigger for long inner signals
The analog input is continuously sampled with the selected
sample rate. The upper and the lower levels define a win-
dow. Every time the signal enters the window from the out-
side, the pulsewidth counter is startet. If the signal leaves
the window before the pulsewidth counter has stopped, no
trigger will be detected.
If the pulsewidth counter stops and the signal is still inside
the window, the triggerevent will be detected.
Channel window trigger for long outer signals
The analog input is continuously sampled with the selected
sample rate. The upper and the lower levels define a win-
dow. Every time the signal leaves the window from the in-
side, the pulsewidth counter is startet. If the signal enters the
window before the pulsewidth counter has stopped, no trig-
ger will be detected.
If the pulsewidth counter stops and the signal is still outside
the window, the triggerevent will be detected.
Register Value Direction set to Value
SPC_TRIGGERMODE 40000 r/w TM_CHANNEL 20040
SPC_TRIGGERMODE0 40200 r/w TM_CHXWINENTER_LP 10041
SPC_HIGHLEVEL0 42000 r/w Sets the window’s upper level relatively to the channel’s input range. board dependant
SPC_LOWLEVEL0 42100 r/w Sets the window’s lower level relatively to the channel’s input range. board dependant
SPC_PULSEWIDTH 44000 r/w Set to the desired pulsewidth in samples. 2 to 255
Register Value Direction set to Value
SPC_TRIGGERMODE 40000 r/w TM_CHANNEL 20040
SPC_TRIGGERMODE0 40200 r/w TM_CHXWINLEAVE_LP 10051
SPC_HIGHLEVEL0 42000 r/w Sets the window’s upper level relatively to the channel’s input range. board dependant
SPC_LOWLEVEL0 42100 r/w Sets the window’s lower level relatively to the channel’s input range. board dependant
SPC_PULSEWIDTH 44000 r/w Set to the desired pulsewidth in samples. 2 to 255