5 Replies Latest reply on Nov 21, 2017 10:04 PM by gsns

    Is it necessary to send the reset command when transitioning from Autoselect mode to CFI Query mode

    arai-n_1540581

      When transitioning from Autoselect mode to CFI Query mode, it can not enter CFI Query mode unless they send the reset command.

      Is it necessary to send the reset command below?

       

      The below is actually the sequence.

       

      1. 1. Send three
        cycles of Autoselect mode command.

      Address    data

      1 cycle        AAA        AA

      2 cycles      555          55

      3 cycles     AAA         90

      1. 2. Obtain the value of DeviceID
      2. 3. Obtain the value of Manufacturer ID
      3. 4. Reset, and exit Autoselect mode

                      Address    data

      1 cycle      00         F0

      1. 5. Send command in CFI Query mode.

      Address  data

      1 cycle         AA         98

       

      Best Regards

      Arai