CMD_SND_BREAK
writeb(cmdReg | CMD_SND_BREAK, &icom_port->dram->CmdReg);
writeb(cmdReg & ~CMD_SND_BREAK, &icom_port->dram->CmdReg);
if (cmdReg & CMD_SND_BREAK) {
writeb(cmdReg & ~CMD_SND_BREAK, &icom_port->dram->CmdReg);