COMBINE juice, wine, sugar and cinnamon stick halves in slow cooker.
Submerge pears in mixture.
Cover and cook on LOW 3 1/2 to 4 hours or until pears are tender.
Remove and discard cinnamon sticks.
PROCESS raspberries in food processor or blender until smooth; strain out seeds.
Spoon raspberry sauce onto serving plates; place pear on top of sauce.
Garnish with fresh berries, if desired.