UPC EETAC Bachelor's Degree in Telecommunications Systems and in Network Engineering EEL

 

  

Programmable logic devices (synthesis target devices)

Lab 1.2, L4.2

sPLD, CPLD and FPGA   (Chapters I and II)

Basic introduction to PLD and FPGA target chips. The wikipedia PLD entry.

1. sPLD: Simple PLD

The Wikipedia entry sPLD. We highly recommend you this video (18 min.).

sPLD logic array
Fig. 1. Example of logic array in sPLD.

2. CPLD: Complex PLD

The Wikipedia entry CPLD. Logic functions are implemented in PoS macrocells (1).

Logice cell CPLD
Fig. 1. Example of CPLD logic cell.

3. FPGA

The Wikipedia entry FPGA. Logic functions are implemented using lookup tables (LUT), generally with a granularity of 4-input 1-bit RAM memory cells. How to implement logic functions using ROM?

We highly recommend you this video (20 min.). A kind of a perfect introduction to modern FPGA devices.

FPGA logic element
Fig. 1. FPGA logic element. Ref. Intel MAX10 10M50DAF484C7G.

Books  

It is a good time for reading a book chapter on programmable logic devices. For instance, Chapter 11 in "INTRODUCTION TO LOGIC CIRCUITS & LOGIC DESIGN WITH VHDL", Brock J. LaMeres, 2nd edition, Springer, 2019, https://doi.org/10.1007/978-3-030-12489-2, available at the UPC library. Indeed, any book on digital logic explains very well what is a programmable logic device able to implement combinational and sequential logic functions.

This is another recommended reading, specially the Chapter I on sPLD, CPLD and FPGA.