MAC_USE_SCC_A
#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
#ifdef MAC_USE_SCC_A
#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
#ifdef MAC_USE_SCC_A