Exami materajal
PAL with additional features. After buying out MMI (1987?), AMD spun off a
consolidated operation as Vantis, and that business was acquired by Lattice
Semiconductor in 1999.
Programmable Logic Array (PLA) - This device has both programmable AND and
OR planes. The space-flight application that I am aware utilized the bipolar, fuse-
based, 82S100 in the central processing units of the Magellan and Galileo attitude
control computers. PLA structures may also appear as part of some CPLDs. The two
layers of programmable structure add a fixed delay.
kasutaja poolt programmeeritavad maatriks-
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struktuurid (FPGA - Field Programmable Gate Array)
This device is similar to the gate array, defined above, with the device shipped to the
user with general-purpose metallization pre-fabricated, often with variable length
segments or routing tracks. The device is programmed by turning on switches which
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