Pineapple Cheesecake

Pineapple Cheesecake 30 vanilla wafers, finely crushed (about 1 cup) 3 Tbsp. butter or margarine, melted ½ tsp. ground cinnamon 1 env. KNOX Unflavored Gelatine 1 can (8 oz.) crushed pineapple in juice, drained with juice reserved, divided 3 pkg. (8 oz. each) Cream Cheese softened ¾ cup sugar 1 tub (8 oz.) COOL WHIP Whipped Topping, thawed Mix wafer crumbs, butter, and cinnamon; press onto bottom of 9-inch springform pan. Sprinkle gelatine over reserved pineapple juice in small saucepan; let stand 1 min. Cook on low heat 3 min. or until gelatine is completely dissolved, stirring occasionally. Beat cream cheese and sugar in large bowl with mixer until blended. Gradually beat in gelatine mixture until blended. Refrigerate 30 min. or until slightly thickened. Whisk pineapple and COOL WHIP into cream cheese mixture; pour over crust. Refrigerate 5 hours.