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====== Smart Response XE Receiver ======

The "receiver" is a USB 2.0 full speed device with the same RF components of the "handheld" device.

==== Documents ====
  * {{:devices:srxe:m16u2.pdf|ATmega16u2 Datasheet}}
  * {{:devices:srxe:m128rfa1.pdf|ATmega128RFA1 Datasheet}}
  * {{:devices:srxe:mx25l1005.pdf|MX25L1005 128K SPI Flash}}

  * [[devices:srxe:dongle-pinouts|Pinouts]]

==== ATmega16u2 I/O <-> ATmega128RFA1 I/O ====
    PIN   FN NAME   NAME FN   PIN
    === ==== ====   ==== ==== ===
      8 RXD1 PD2 <-- PD3 TXD1 28
      9 TXD1 PD3 --> PD2 RXD1 27
     10      PD4 <-> PD4      29
     11      PD5 <-> PG2      16
     14  nSS PB0 <-> PF2       1
     15 SCLK PB1 <-> PB1 SCK  37
     16 MOSI PB2 <-> PB2 MOSI 38
     17 MISO PB3 <-> PB3 MISO 39
     18      PB4 <-> PD1      36
     19      PB5 --> PF4 TCK   3 WHT \
     20      PB6 <-- PF6 TDO   5 YEL  \ JTAG
     21      PB7 --> PF5 TMS   4 GRN  /
     22      PC7 --> PF7 TDI   6 BLU /
     24 nRST PC1 <-- PE2      48

==== ATMega128RFA1 I/O ====

    PD6 is connected to SOIC8 EEPROM pin 7 with pull up resistor (nHOLD).
    PD7 is connected to SOIC8 EEPROM pin 1 (nCS).
    
    PB5 LED D1
    PB6 LED D2
    PB7 LED D4 Green
    PE0 LED D4 Red
    PE3 PS1 Pogo
    PE4 PS2 Pogo

==== Hardware ====

{{:devices:srxe:receiver-front.jpg?direct&200|}}