PORT_APP2
if (receive_data(PORT_APP2, dc))
if (send_data(PORT_APP2, dc)) {
dc->port[PORT_APP2].token_dl = APP2_DL;
dc->port[PORT_APP2].dl_addr[CH_A] =
dc->port[PORT_APP2].dl_size[CH_A] =
dc->port[PORT_APP2].ul_addr[CH_A] =
dc->port[PORT_APP2].ul_size[CH_A] =
port = PORT_APP2;
case PORT_APP2: