User guide

System Generator for DSP Getting Started Guide www.xilinx.com 63
UG639 (v 14.3) October 16, 2012
Lesson 5 - Using Memories
The FIFO Block
The FIFO block supports both Block RAM and Distributed RAM implementations. Depths up to 64K are supported.
Three output flags are supported, empty, full and %full. The %full flag is set depending on a bit width
specification. One bit will be zero until the FIFO is 50% full, then it will set to.5. Two bits will be zero until 20% full,
then .25, .5 and .75.