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      參數(shù)資料
      型號: MQ80C52CXXX-20/883R
      廠商: ATMEL CORP
      元件分類: 微控制器/微處理器
      英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQFP44
      封裝: CERAMIC, QFP-44
      文件頁數(shù): 23/101頁
      文件大?。?/td> 3398K
      代理商: MQ80C52CXXX-20/883R
      51
      8168C-MCU Wireless-02/10
      AT86RF212
      Table 5-11. Configuration of Promiscuous Mode
      Register
      Address
      Register
      Bit
      Name
      Description
      0x20,0x21
      0x22,0x23
      0x24
      0x2B
      SHORT_ADDR_0/1
      PAN_ADDR_0/1
      IEEE_ADDR_0
      IEEE_ADDR_7
      Each address shall be set to 0x00
      0x17
      1
      AACK_PROM_MODE
      1: Enable promiscuous mode
      0x2E
      4
      AACK_DIS_ACK
      1: Disable acknowledgment generation
      To signal the availability of frame data, an IRQ_3 (TRX_END) is issued, even if the FCS
      is invalid. Thus, it is necessary to read register bit RX_CRC_VALID (register 0x06,
      PHY_RSSI) after IRQ_3 (TRX_END) in order to verify the reception of a frame with a
      valid FCS. Alternatively, bit 7 of byte RX_STATUS can be evaluated, refer to section
      If a device, operating in promiscuous mode, received a frame with a valid FCS that
      furthermore passed the third level of filtering (according to IEEE 802.15.4-2006, section
      7.5.6.2), an acknowledgement (ACK) frame would be transmitted. But, according to the
      definition of the promiscuous mode, a received frame shall not be acknowledged, even
      if requested. Thus, register bit AACK_DIS_ACK (register 0x2E, CSMA_SEED_1) must
      be set to 1 to disable ACK generation.
      In all receive modes, interrupt IRQ_5 (AMI) is issued if the received frame matches the
      node’s address according to the filter rules described in section 6.2.
      Promiscuous mode could also be implemented using state RX_ON (Basic Operating
      Mode), refer to section 5.1. However, the RX_AACK transaction additionally enables
      extended functionality like automatic acknowledgement and non-destructive frame
      filtering.
      5.2.3.3 Configuration of Non IEEE Compliant Scenarios
      Reserved Frame Types
      In RX_AACK mode, frames with reserved frame types (refer to section 6.1.2.2, Table 6-
      2) can also be handled. This might be required when implementing proprietary, non-
      standard compliant protocols. The reception of reserved frame types is an extension of
      the AT86RF212 Frame Filter, see section 6.2. Received frames are either handled like
      data frames, or may be allowed to completely bypass the Frame Filter. The flow chart in
      Figure 5-9 shows the corresponding state machine.
      In addition to Table 5-9 or Table 5-10, the following Table 5-12 shows RX_AACK
      configuration registers required to setup a node to receive reserved frame types.
      Table 5-12. RX_AACK Configuration to Receive Reserved Frame Types
      Register
      Address
      Register
      Bit
      Name
      Description
      0x17
      4
      AACK_UPLD_RES_FT
      1: Enable reserved frame type reception
      0x17
      5
      AACK_FLTR_RES_FT
      Filter reserved frame types like data frame
      type
      0: Disable
      1: Enable
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