Owner manual

54
AT45DB021E [PRELIMINARY DATASHEET]
8789B–DFLASH–11/2012
Figure 24-3. Main Memory Page to Buffer Transfer
Data From the selected Flash Page is read into the Buffer
Figure 24-4. Buffer Read
CS
SI (Input)
CMD PA6-0, X XXXX XXXX
Starts Reading Page Data into Buffer
Binary Page Size
A17-A8 + 8 Dummy Bits
SO (Output)
X
...
X, PA9-7
CS
SI (Input)
SO (Output)
n
CMD X X
...
X, BFA8 BFA7-0 X
Address for Binary Page Size
16 Dummy Bits + BFA7-BFA0
n n + 1
No Dummy Byte (opcode D1h)
1 Dummy Byte (opcode D4h)
Each transition represents eight bits