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78 Agilent E1330B Digital I/O Module Command Reference
Chapter 5
DIGital:DATA
n
[:type]:HANDshake:DELay
[SOURce:]DIGital:DATA
n
[:BYTE]:HANDshake:DELay <
time
>
sets the delay
between data output and control line for data output at 8-bit port n.
[SOURce:]DIGital:DATA
n
:WORD:HANDshake:DELay <
time
>
sets the delay
between data output and control line for data output at 16-bit port n.
[SOURce:]DIGital:DATA
n
:LWORd:HANDshake:DELay <
time
>
sets the delay
between data output and the control line for data output at 32-bit port n.
Parameters
Comments
•
This command is related to the handshake mode in use. Chapter 3 describes the
handshake modes and timing.
•
This command sets strobe pulse width for input and output STRobe
handshakes.
•
The delay time must be set to the same value on all ports used in a multiple
port operation.
•
MAX
sets a 15ms delay.
DEF
sets 2
µ
s delay.
MIN
sets 0.0 delay and is illegal
for PULse or STRobe handshake modes.
•
DIGital:DATA
n
:HANDshake[:MODE] NONE
command ignores any
programmed delay time. For all other modes of handshaking, 2
µ
s is the
minimum recommended.
•
Specific bands of delay settings are NOT allowed. These are:
0
µ
s
> <
time
> <
2
µ
s
150
µ
s
> <
time
> <
200
µ
s
15
µ
s
> <
time
> <
20
µ
s
1.5ms
> <
time
> <
2.0 ms
The controller uses a rounded-up value for
<
time
>
if these values are specified.
•
The keyword
:LW32
may be used instead of
:LWORd
when using the
download version of the SCPI driver.
•
DIGital:DATA
n
[:type]:HANDshake
is the sequence used for commands
relating to data handshaking at ports defined by n. The port number n must be
the last character of the keyword without spaces.
•
Related Commands:
[SOURce:]DIGital:CONTrol
n
:POLarity
,
[SOURce:]DIGital:CONTrol
n
[:VALue]
,
[SOURce:]DIGital:FLAG
n
:POLarity
,
[SOURce:]DIGital:HANDshake
n
[:MODE]
•
*RST Condition:
Delay is set to 2
µ
s.
Example
DIG:HAND3:DEL .005
sets the delay between the data output and the assertion of
the control line to true on 8-bit port 3 to 5 ms.
Parameter Name
Parameter Type
Range of Values
Default
DATA
n
Numeric
BYTE
WORD
LWORd
none, 0, 1, 2, or 3
none, 0 or 2
none or 0
0
<
time
>
Numeric
2
µ
s to 15
µ
s
20
µ
s to 150
µ
s
200
µ
s to 1.5 ms
2ms to 15ms
None
Discrete
MIN|MAX|DEF
Summary of Contents for E1330B
Page 2: ......
Page 10: ...8 Notes ...
Page 11: ...9 Notes ...
Page 12: ...10 Notes ...
Page 32: ...30 Configuring the Agilent E1330B Digital I O Chapter 2 Notes ...
Page 42: ...40 Using the Agilent E1330B Digital I O Module Chapter 3 Notes ...
Page 58: ...56 Understanding the Agilent E1330B Digital I O Module Chapter 4 Notes ...
Page 104: ...102 Agilent E1330B Digital I O Module Command Reference Chapter 5 Notes ...