User guide

System Generator for DSP Getting Started Guide www.xilinx.com 39
UG639 (v 14.3) October 16, 2012
Lesson 2 - Fixed Point and Bit Operations
The Concat Block
The Concat block concatenates two inputs into a single output at the bit level. This block has two input ports that
are labeled hi and lo. The hi port occupies the MSB’s and the lo input occupies the LSB’s of the output signal.
This block is useful for zero padding the MSBs or LSBs of a signal.