HIGH SPEED DATA TRAIN GENERATING SYSTEM WITH NO RESTRICTION ON LENGTH OF GENERATED DATA TRAIN

The present invention provides a data train generating system with no restriction on the number of data which can be generated at a high data rate by use of low-speed memory. A conditional mode may be used to change the data output sequence at an arbitrary time whereby the output is substantially uneffected by the operational speed of the memory used and the waiting time for the change to occur is reduced.