plc_send_bits
if (plc_send_bits(smc,phy,3)) {
(void) plc_send_bits(smc,phy,3) ;
if (plc_send_bits(smc,phy,1)) {
if (plc_send_bits(smc,phy,3)) {
if (plc_send_bits(smc,phy,1)) {
if (plc_send_bits(smc,phy,2)) {