Appendix E: Functional Operation Summary

Sequence Memory

AAA WFM

AddressAddress

Counter

AAA WFM Data

 

Waveform

Length

Length

Memory

 

Counter

 

Looping Control

ValueLooping

Counter

Sequence Memory

 

 

Clock ￿1/8￿

Address Counter

 

 

 

 

 

 

 

 

 

 

 

Figure E"9: Relationship Between Sequence Memory and Waveform Memory

Waveform Memory

The waveform memory comprises sixteen 32K 8 SRAM chips for 256K words

 

of 16-bit word memory. Of these 16 bits, 12 bits are waveform data, 1 bit is

 

Marker 1, and 1 bit is Marker 2

 

The waveform and marker data is loaded into waveform memory when a file is

 

selected with the SETUP menu Waveform Sequence item.

 

Since the waveform memory must be read out at high speed (250 MS/s), it is

 

partitioned into 8 banks and read out with 8:1 multiplexing (parallel-serial

 

conversion). Therefore, the memory itself operates with a 1/8 clock.

 

Figure E-10 shows the waveform memory configuration.

E"10

AWG2021 User Manual