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Title: FPGA Prototyping by VHDL Examples: Xilinx Spartan-3 Version / Edition 1, Author: Pong P. Chu
Title: Introduction to Digital Systems: Modeling, Synthesis, and Simulation Using VHDL / Edition 1, Author: Mohammed Ferdjallah
Title: Embedded SoPC Design with Nios II Processor and VHDL Examples / Edition 1, Author: Pong P. Chu