SYNC_PTRN
FPT_scxferc(p_port, SYNC_PTRN);
FPT_scxferc(p_port, SYNC_PTRN);
while (FPT_scxferc(p_port, 0x00) != SYNC_PTRN) {
FPT_scxferc(p_port, SYNC_PTRN);
FPT_scxferc(p_port, SYNC_PTRN);