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**                                                                    **
**              Application notes for Spansion devices                **
**                       (Informal Document)                          **
**                                                                    **
**   To find the application notes for your device search for the     **
**  'core' part name.  As an example using the 25FL008A-MF-00 8 pin   **
**   SOIC you would search on '25FL008A'                              **
**                                                                    **
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 25FL008A
 ----------

 1.Eight levels of "BLOCK PROTECT" can be implemented for following devices:

  SF3    SF2     SF1     25FL008A
 ---------------------   ---------------
   0      0       0      none           
   0      0       1      $F0000 - $FFFFF 
   0      1       0      $E0000 - $FFFFF 
   0      1       1      $C0000 - $FFFFF 
   1      0       0      $80000 - $FFFFF 
   1      0       1      $00000 - $FFFFF 
   1      1       0      $00000 - $FFFFF 
   1      1       1      $00000 - $FFFFF 

 2.Enabling the "Erase EE device" option will remove all block protection.

 NOTE: Devices require "Erase EE device" option to be enabled when re-programming.

 3. Status Register Format: 

      7       6        5        4        3        2        1        0     
 |--------|--------|--------|--------|--------|--------|--------|--------|
 |        |        |        |        |        |        |        |        |
 |  SRWD  |   0    |   0    | BP2    |  BP1   |  BP0   |  WEL   |  WIP   |
 |        |        |        |        |        |        |        |        |
 |--------|--------|--------|--------|--------|--------|--------|--------| 

 Address of status register:
 25FL008A  : $100000
 
 4.Setting the "Program Protect Register" to Yes allows programming of   
 the 'Status Register Write Disable'(SRWD) bit.                              
                                                                      
 For enabling "Program Protect Register" in TaskLink for windows(TLwin)
 or TaskLink for DOS(TLdos) you must set the Enable Special Data #2    
 option.                                                               

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