Keysight 34959A, Руководство пользователя

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Keysight 34959A User’s Guide 31
If the write target is byte 1 , control line 1 is set strobe low, the byte 1 data is
written to the 8 output bits, and then control line 1 is set strobe high. Valid data is
present 1.25 μ s before the control line strobe is set high. Control line 3 is then set
high.
Similarly,
if the write target is byte 2 , control line 2 is set strobe low, the byte 2
data is written to the 8 output bits, and then control line 2 is set strobe high. Valid
data is present 1.25
μ
s before the control line strobe is set high. Control line 3 is
then set high.
If both bytes are targeted in the write (
SOURce
) command , both control lines 1 and
2 are set strobe low, both bytes’ data are written to the 16 output bits, and then
both control lines are set strobe high. Valid data is present 1.25 μ s before the
control line strobe is set high. Control line 3 is then set high.
In all three cases , once the data has been written by the mainframe, the data is
kept on the data lines until another (read or write) command changes them.
The write timing diagram is shown below.
Timing Diagrams for the Digital Read and Write Commands
The strobe timing, control line status and data timing for the read and write
commands as explained above are illustrated in the diagrams that follow: