MIX cream cheese spread, broth, milk, garlic powder and 1/8 tsp. crushed pepper until blended. Cook chicken in large skillet sprayed with cooking spray on medium heat 3 to 5 min. on each side or until browned on both sides. Add cream cheese mixture; cover. Simmer on medium-low heat 15 min. or until chicken is done (165°F), stirring occasionally.
MEANWHILE, cook pasta in large saucepan as directed on package, omitting salt and adding broccoli to the cooking water for the last 3 min.
REMOVE chicken from skillet; cover to keep warm. Drain pasta mixture. Add to cream cheese mixture in skillet; stir. Top with chicken, Parmesan and remaining crushed pepper.