CTEST5_BBCK
ctest5 &= ~CTEST5_BBCK;
ctest5 |= (maxburst - 1) & CTEST5_BBCK;
ctest5 &= ~CTEST5_BBCK;
ctest5 |= (maxburst - 1) & CTEST5_BBCK;
ctest5 &= ~CTEST5_BBCK;
ctest5 |= (sc->maxburst - 1) & CTEST5_BBCK;