Rainbow-electronics ATF1504ASL Instrukcja Użytkownika Pobierz pdf (Strona 7)

ATF1504AS(L)

0950N–PLD–07/02

Foldback Bus Each macrocell also generates a foldback product term. This signal goes to the regional

bus and is available to four macrocells. The foldback is an inverse polarity of one of the

macrocell’s product terms. The sixteen foldback terms in each region allow generation

of high fan-in sum terms (up to sixteen product terms) with a nominal additional delay.

Figure 1. ATF1504AS Macrocell

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Rainbow-electronics ATF1504ASL Instrukcja Użytkownika Strona 7