User`s manual

80 Agilent E1330B Digital I/O Module Command Reference
Chapter 5
DIGital:DATAn[:type]:HANDshake[:MODE]
[SOURce:]DIGital:DATAn[:BYTE]:HANDshake[:MODE] <mode> selects the
type of handshake and defines the timing relationship between the control (CTL)
line, the flag (FLG) line, and when data is transferred in either direction between the
Digital I/O Module and a peripheral on the 8-bit port n.
[SOURce:]DIGital:DATAn:WORD:HANDshake[:MODE] <mode> selects the
handshake mode used on the 16-bit port n.
[SOURce:]DIGital:DATAn:LWORd:HANDshake[:MODE] <mode> selects the
handshake mode used on the 32-bit port n.
Parameters
• Handshake modes are described in Chapter 3.
• The handshake mode must be the same on all ports used in a multiple port
operation.
• The keyword :LW32 may be used instead of :LWORd when using the
downloaded version of the SCPI driver.
• DIGital:DATAn[:type]HANDshake is the sequence used for commands
relating to data handshaking at port n. The port number n must be the last
character of the keyword without spaces.
• NONE deletes all automatic data handshaking between the Digital I/O module
and the peripheral. For custom handshaking, the control and the flag lines are
controlled by the [SOURce:]DIGital:CONTroln and MEASure:DIGital:FLAGn
commands.
• Related Commands: [SOURce:]DIGital:CONTroln:POLarity,
[SOURce:]DIGital:CONTroln[:VALue], [SOURce:]DIGital:FLAGn:POLarity,
[SOURce:]DIGital:HANDshaken:DELay
• *RST Condition: Mode is NONE on all ports.
Example DIG:DATA3:HAND LEAD sets the handshake mode to LEADing on 8-bit port 3.
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
<
mode>
Discrete NONE, LEADing, TRAiling,
PULse, PARTial, or STRobe
NONE