Preliminary
Acquisition and Camera Control
Acquisition Command and Status
Version F.0
BitFlow, Inc.
KBN-2-27
Table 2-11 below describes the acquisition modes for ACQ_CON
Figure 2-6 shows a timing diagram of the SNAP command, with ACQ_CON = 0. The
command is written by the host during the active frame. The acquisition will start at
the beginning of the next frame.
Figure 2-6 Snap Command Timing
Figure 2-7 shows the timing of the GRAB operation with ACQ_CON=0. Figure 2-8
shows the timing of the ABORT operation with ACQ_CON=0. Note that the ABORT
command will cut off part of the frame. This command is useful for resetting the board
without having to wait for the end of the frame. Figure 2-9 shows a SNAP operation
with ACQ_CON=1. In this mode, after the TRIGGER has been asserted and the com-
mand executed, the host must write a new command in the AQCMD field. Figure 2-10
shows acquisition in ACQ_CON=2 mode. Here, as long as the GRAB command is on,
a frame will be acquired for every assertion of the TRIGGER. In this mode, there is no
need for the host to write a new command.
Table 2-21 ACQ_CON
ACQ_CON
Mode Description
0 (000b)
Host command performed on next frame
1 (001b)
Host command issued when TRIGGER asserted
2 (010b)
As long as GRAB command is on, a single frame will be SNAPped
at every assertion of the TRIGGER.
3 (011b)
Continuous acquisition mode. Host commands are ignored. Data
will be acquired continuously as long as the TRIGGER is asserted.
Snap c o mmand w r it t en
A Q C M D r eset and A Q STA T set
A Q STA T r eset
V A C T IV E
A Q C M D
2
A Q STA T
2
0
0
0
0
Summary of Contents for KBN-CL4-2.51-SP
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