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Purpose of IEEE library in VHDL

Purpose of IEEE library in VHDL. By Srujana Aramalla Instructor: Dr.Albert B. Grubbs. Design File. It is an ASCII file containing VHDL source. A compiled design unit is stored in a design library. Each design library has a logical name with which it is referenced inside a VHDL description.

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Purpose of IEEE library in VHDL

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  1. Purpose of IEEE library in VHDL By Srujana Aramalla Instructor: Dr.Albert B. Grubbs

  2. Design File • It is an ASCII file containing VHDL source. • A compiled design unit is stored in a design library. • Each design library has a logical name with which it is referenced inside a VHDL description.

  3. IEEE standards (Brief history) • IEEE 1076 • IEEE 1164 • IEEE 1076.3 • IEEE 1076.4

  4. IEEE design library • Contains the package STD_LOGIC_1164, which defines a nine-value logic type and its associated overloading functions and other utilities. • Parts of the IEEE library can be included in an entity by inserting lines like these before entity declaration: library ieee; use ieee.std_logic_1164.all;

  5. References • IEEE Standard Multivalue Logic System for VHDL Model Interoperability (Std_Logic_1164), Sdt 1164-1993, IEEE, Piscataway, 1993. • IEEE, IEEE Standard VHDL Language Reference Manual, IEEE Std 1076-1993, The Institute of Electrical and Electronics Engineers, 1993. • J. Bhasker, “VHDL Primer,” 3rd Edition, Prentice Hall, Upper Saddle River, 1998.

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