1. Sprinkle both sides of pork with pepper and salt. Melt margarine in a large nonstick skillet over medium-high heat. Add pork; cook 3 minutes on each side or until browned. Remove from skillet; set aside.
2. While pork cooks, core pears, and cut into 1/2-inch slices. Add pear slices to skillet; sprinkle with sugar and rosemary. Cook over medium-low heat 3 minutes, stirring often.
3. Pour apple juice into skillet; return pork to skillet. Simmer 6 to 8 minutes or until pork is done.