HP 81110A - Page 53

HP 81110/04A Quick Start Introduction 55
Introduction
Editing Pattern
In pattern mode the Strobe output has additional up to 16384 bit memory
depth with NRZ data output always. So, the Strobe output is the com-
fortable trigger output in pattern mode.
In this screen you can select:
1 Update Status -
Upd Once, Update Cont
If the changes of pattern should immediately affect the output select
Upd Cont.
If you want to set up new pattern while a data stream is currently
generated select
Upd Once. Edit your new pattern, then press the
key to make the new pattern active on the output.
2 Current memory location - Addr - shows the current position of the
bit-editing window.
Move the entry field to the bit-editing window and enter the pattern.
The bit-editing window automatically moves one location to the right.
The bit-editing window can be moved across the pattern length by
varying the
Addr. Either change the Addr with the knob or by typing
in a new address with the Data Entry keys.
The range is
1-length of pattern (max 16384).
3 Length of pattern - Last - shows the last address and is equal to the
length of the data stream.
Set the required pattern length by specifying the
Last address. The
range is
2-16384.
4 Block Editing Functions for - CH1, CH2, BOTH, STRB
It is possible to manipulate each Output channel separately
CH1, CH2
or together,
BOTH. The strobe output STRB is available and can be
programmed individually. There are block editing functions available
to fill memory with 0 or1, to invert the pattern, to set a PRBS or filling