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What is CPLD

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Therefore, to compose a circuit, it is necessary to do each wiring among the ... PLD compose of logic functions, contains Boolean expression , registered ... – PowerPoint PPT presentation

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Title: What is CPLD


1
What is CPLD ?
  • A lot of logic devices are housed in CPLD and
    those connections can be specified by the
    program.
  • For example, in case of the 7400 IC, 4 circuits
    of 2 input NAND gate are housed. In case of 7404,
    6 circuits of inverter are housed.
  • These are separate IC. Therefore, to compose a
    circuit, it is necessary to do each wiring among
    the pins using the printed board.

2
  • In case of the 7400 IC, 4 circuits of 2 input
    NAND gate are housed. In case of 7404, 6 circuits
    of inverter are housed.
  • In case of CPLD, it has wiring among the logic in
    the IC. So, the wiring on the printed board can
    be made little.

3
Separate IC PLD
  • Separate IC
  • ExTTL/CMOS (74XX/54XX)
  • PLD(Programmable Logic Device)
  • PLD is a digital integral circuit . PLD
    compose of logic functions,
  • contains Boolean expression , registered
    function etc.
  • Both of the two circuit function are identical.
  • The made processes are different.

4
Tradition Digital Logic Circuit Design
  • Use separate IC to design.
  • Design circuit on the paper.
  • Welding all of the circuit devices on the board.
  • Detecting the circuit.
  • Produce specimen circuit board and manufacture
    product.

5
EDA Digital Logic Circuit Design
  • Computer auxiliary design system of Altera -
    MAXPLUS II
  • LP 2900 CPLD logic design experiment platform
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