SP_NEXT_SYNC_OBJ_ADDR
sds->props[SP_NEXT_SYNC_OBJ_ADDR] * index;
sds->props[SP_NEXT_SYNC_OBJ_ADDR] * index +
base_addr = sds->props[SP_NEXT_SYNC_OBJ_ADDR] * index;
[SP_NEXT_SYNC_OBJ_ADDR] = NEXT_SYNC_OBJ_ADDR_INTERVAL,