====== EZ-Flash V programming ======

===== Commands =====

==== Card: Read with prefetch (B7 aa bb cc dd nn 00 00) ====

  * First, ''B7aaaaaaaa010000'' is sent - returns 4 bytes. The final byte may be ''FF'' or ''00'' - if it's ''00'', prefetch is complete.
  * Next, if prefetch was not complete, ''B7aaaaaaaa020000'' is sent repeatedly - returns 4 bytes, same format as above.
  * Then, ''B7aaaaaaaa000000'' is issued as normal.

==== SRAM: Read words (B7 01 aa bb cc 00 00 00) ====

Returns 4 or 512 bytes (maybe more).

==== NOR: Write byte (B8 F0 aa bb cc 00 00 dd) ====

Writes byte ''dd'' to address ''aabbcc''.

==== NOR: Write word (B8 F0 aa bb cc 00 ee dd) ====

Writes word ''ddee'' (as two bytes?) to address ''aabbcc''.

==== SRAM: Write word (B8 F2 aa bb cc 00 ee dd) ====

Writes word ''ddee'' to address ''aabbcc''.

==== Card: ?? (B8 F4 01 nn 55 AA 55 00) ====

==== Card: Configure save emulation (B8 F4 02 nn 55 AA 55 AA) ====

==== Card: ?? (B8 F4 03 nn 55 AA 55 AA) ====

==== TF: Write data (B8 F6 Fa Fb Fc Fd 00 00) ====

==== TF: Start data write (B8 F6 FF FF FF F0 00 00) ====

  * ''ab cd'' - bytes to write (sent as nibbles)

==== TF: Read 512 bytes (B8 F7 00 00 00 00 00 00) ====

==== TF: Read command byte? (B8 F8 00 00 00 00 00 00) ====

==== TF: Send command (B8 FA 00 cc pp pp pp pp) ====

==== TF: Read response (B8 FA nn 00 00 00 00 00) ====

  * ''nn'' - page to read (1-5).

==== ?? Lock ?? (B9 FF 55 AA 00 00 00 00) ====

==== ?? Unlock ?? (B9 FF A5 5A 00 00 00 00) ====

==== Lock until reset? (B9 FF 5A A5 00 00 00 00) ====

===== SRAM =====

  * ''0x7DFE0'' - 1 if high-capacity TF card, 0 otherwise