MCU_CMD_ACK
#define MCU_CMD_UNI_EXT_ACK (MCU_CMD_ACK | MCU_CMD_UNI | \
#define MCU_CMD_UNI_QUERY_ACK (MCU_CMD_ACK | MCU_CMD_UNI)
uni_txd->option &= ~MCU_CMD_ACK;
uni_txd->option |= MCU_CMD_ACK;