HP 81200, User Manual, Page: 89 / 240

How to Set the Clock Characteristics Setting Global System Parameters
HP 81200 Data Generator/Analyzer Platform User Guide, Revision 2.1
89
3
If desired, set a global Delay Offset .
A global delay offset enables you to specify negative time offsets for
individual signals. Such signals appear in advance of the regular clock
pulse.
4 Check the
Blocklength Granularity
and
Frequency Multiplier Range.
The blocklength granularity has an impact on the available memory
resources for generating or capturing data. The default setting of the
blocklength granularity is 4.
The Frequency Multiplier Range (FMR) determines the available
multiplication factors that can be used for multiplying the entered
system clock frequency. The blocklength granularity has an impact on
the available memory resources for generating or capturing data.
Depending on the desired clock rate you can choose a lower or higher
blocklength granularity.
For details refer to “FMR and Blocklength Granularity” on page 31
Table 2 Clock Rates, FMR, and Blocklength Granularity
Block Length
Granularity
Frequency Multiplier
Range Memory Depth System Clock Rates
1 bit (=1) 1, 2, 4, 8, 16 64 kbit

41.67 MHz
2 bits (=2) 1/2, 1, 2, 4, 8 128 kbit

83.83 MHz
4 bits (=4) 1/4, 1/2, 1, 2, 4 256 kbit

166.67 MHz
8 bits (=8) 1/8, 1/4, 1/2, 1, 2 512 kbit

333.33 MHz
16 bits (=16) 1/16, 1/8, 1/4, 1/2, 1 1 Mbit

660 MHz