Technical data

DIGital Commands SCPI Commands Reference
Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 29
:DIGital[1|2][:STIMulus]:PATTern:LDATa
Syntax :DIG[1|2][:STIM]:PATT:LDAT
Form Set
Description This command is used to program long data patterns in
hexadecimal format. The minimum length of these patterns is 128
bits, the maximum length is 12 Mbits, the granularity is 128 bits.
Patterns generated with this command are subject to various
restrictions (see below). See also
“:DIGital[1|2][:STIMulus]:PATTern[:DATa]” on page 27.
Parameter <data>
The <data> is an arbitrary block of hex program data as defined in
IEEE 488.2 7.7.6.2, for example:
Restrictions This command is subject to the following restrictions:
• Only pattern up to 12 Mbits and a granularity of 128 bits are
allowed.
• Because of hardware restrictions, a complete 12 Mbit pattern
can only be sent at higher frequency ranges:
• The frequency divider of a two- channel instrument also restricts
the maximum pattern. The following equation is valid:
#532768AB03CDAD......
# Start of block
5 Length of the length of the data
32768 Length of the data
AB03CD... 32768 bytes of data for pattern
length of 131072 bits
Range Maximum Pattern Length
60 – 3360 Mhz 12 Mbit
30 – 60 Mhz 6 Mbit
15 – 30 Mhz 3 Mbit
Max. pattern size =
Max. pattern size (@ freq)
Frequency divider