MAKE_CMD_WRITE_REG
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR, LCR_DL_ENABLE);
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLL, LOW8(divisor));
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLM, HIGH8(divisor));
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR,
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, edge_port->port->port_number,