ANALOG MODULATION MODE
3-73
In Decimal Mode:-
[Latch Data]
is a function key that allows decimal data to be written to the selected latch or
latches. When this key is highlighted the user may enter a number in the ranges 0 to 255, 0 to
65535, 0 to 16777215 or 0 to 1099511627775 (for 1, 2, 3 or 5 latches) terminated with
[enter], at which time the data is written to the latch.
In Binary Mode:-
[Cursor Left], [Cursor Right]
moves the cursor (underscore) left or right along the 8 or 16
displayed bits.
[Toggle Bit]
changes the state of the bit at the cursor from 1 to 0, or 0 to 1, the new 8- or
16-bit value is written to the latch/latches immediately.
[Next Latch], [Previous Latch]
increments/decrements the Latch Number by 1, 2, 3 or 5 (as
selected by
[1,2,3,5 Latches]
).
A list of hardware latches is given in the Maintenance Manual.
Certain latches are read-only, this is usually obvious from the latch description. If this is
the case entered data has no effect and the old value is redisplayed.
Changes to the GPIB write latches (112 to 119) can only be restored by switching the
instrument off and on again, so should be used with caution.
The Nibble Bus Protocol Latch (111) is always restored.
Menu exit
Press [SIG GEN] to return to the
Sig Gen
menu where further selections may be made.