A method of synthesis of two-level combinatorial circuits with simultaneous creation of values of output variables (method M4)
The Essential disadvantage of method M3 is various time of creation of
values of output functions which are realized at the first and second
levels of the circuit. In method M4 for elimination of the indicated
disadvantage all output functions are realized at the second level of
the circuit. Method M4 coincides with method M4 except that at the
third stage of synthesis the set of parts of Z functions switches on
all functions, including realized on PAL the first level.
To positive qualities of method M4, in comparison with method M3, is
that:
To disadvantages of method M4, in comparison with method M3, concerns: