ADLINK PXI-2208 - Manual (Page 58)

46 Operation Theory
Figure 4-7: Pre-trigger with M_enable=1
NOTE The PSC_counter is set to 0 in pre-trigger acquisition
mode.
Acquisition_in_progress
Scan_start
AD_conversion
Scan_in_progress
(SSHOUT)(pin2 on CN2)
(M_counter = M = 3, NumChan_counter=4, PSC_counter=0)
Aquired data
Acquired & stored data
(M scans)
Trigger signals which occur in the shadow
region(the first M scans) will be ignored
Operation start
Trigger
The first M scans