xSTream Glossary

General definitions

FIFO

First In First Out

A type of stack, similar to a queue at the post office: First element in the queue will be first served.

xSTream global definitions

xDMA

DMA with streaming features

this would be a DMA with streaming features.

xSTreamC

A C based language dedicated to streaming

GPE

General-purpose Processing Element

This is the processor (or processing element) orchestrating the streaming application

streaming fabric

The ensemble of the processing array and its communication infrastructure, buses and IPs

PE

xSTreamC Processing Element

This is one of the processor of the streaming fabric.

NOC

Network On Chip

The communication infrastructure linking PEs.

xSTreamC definitions

push

sends a data element on the output FIFO

pop

receives a data element on the input FIFO

peek

reads a data element at a given index in the FIFO

drop

consumes a given number of elements of the input FIFO

try

Returns whether a given number of elements is available for a given queue