Introduction to Programmable Logic Devices. Aleksandra Kovacevic firstname.lastname@example.org Veljko Milutinovic email@example.com. 0/13. Introduction Comparison of Standard Logic Circuits and Programmable Logic Circuits Evolution and Overview of PLC: PROM, PLA, PAL CPLD FPGA. 1/13.
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Programmable logic device
Logic functions rarely require more than few product terms
PROM contains a full decoder for its address inputs.
PALis a trademark of Advanced Micro Devices
Evolution of PLD: RegisterPLA
Programmable Interconnect Array
- Capable of connecting any LAB input or output to any other LAB
possibility to produce devices with higher capacity than SPLDs.
Logic Array Blocks
- Complex SPLD-like structure
contains a set of basic functions (gates, FFs, memory cells)
Xilinx FPGA Configuration