use 32-bit beatCounter for better critical path
use 32-bit beatCounter for better critical path

hanw/connectal,hanw/connectal,csail-csg/connectal,cambridgehackers/connectal,8l/connectal,csail-csg/connectal,csail-csg/connectal,chenm001/connectal,cambridgehackers/connectal,8l/connectal,cambridgehackers/connectal,chenm001/connectal,hanw/connectal,chenm001/connectal,chenm001/connectal,cambridgehackers/connectal,8l/connectal,csail-csg/connectal,csail-csg/connectal,chenm001/connectal,8l/connectal,hanw/connectal,hanw/connectal,8l/connectal,cambridgehackers/connectal