TITLE 4-bit binary counter & 4-bit buffer needed for ELE328 lab5 PATTERN Lab5a REVISION 1 AUTHOR duber COMPANY ertw DATE 10/29/00 CHIP _lab5a PALCE16V8 PIN 1 clock ; PIN 2 nc ; PIN 3 Z ; PIN 4 /reset ; PIN 5 nc ; PIN 6 nc ; PIN 7 nc ; PIN 8 nc ; PIN 9 nc ; PIN 10 gnd ; PIN 11 /OE ; PIN 12 L7 ; PIN 13 L6 ; PIN 14 L5 ; PIN 15 L4 ; PIN 16 L3 ; PIN 17 L2 ; PIN 18 L1 ; PIN 19 L0 ; PIN 20 vcc ; EQUATIONS L0 := /reset * (Z * /L0 + /Z * L0); count Z = 1 L1 := /reset * (Z * (L0 :+: L1) + /Z * L1) L2 := /reset * (Z * ((L0 * L1) :+: L2) + /Z * L2) L3 := /reset * (Z * ((L0 * L1 * L2) :+: L3) + /Z * L3) L4 := /reset * (Z * L4 + /Z * L0); load Z = 0 L5 := /reset * (Z * L5 + /Z * L1) L6 := /reset * (Z * L6 + /Z * L2) L7 := /reset * (Z * L7 + /Z * L3)