User manual

Series 3700 System Switch/Multimeter Reference Manual Section 8: Scanning
3700S-901-01 Rev. C / July 2008 8-27
Synchronous acceptor trigger mode
Use the synchronous acceptor trigger mode (SynchronousA) in conjunction with
the SynchronousM trigger mode. The role of the internal and external drives are
reversed in the SynchronousA trigger mode.
Figure 8-12: SynchronousA input trigger
Input characteristics:
The falling edge is detected as the external drive pulses the line low, and the
internal drive latches the line low
Figure 8-13: SynchronousA output trigger
Output characteristics:
The trigger.assert command releases the line if the line is latched low.
The physical line state does not change until all drives (internal and
external) release the line.