AT45DB041E_14 Datasheet, PDF (57/71 Pages) List of Unclassifed Manufacturers – 4-Mbit DataFlash (with Extra 128-Kbits), 1.65V Minimum SPI Serial Flash Memory

Figure 24-3. Main Memory Page to Buffer Transfer
Data From the selected Flash Page is read into either SRAM Buffer
CS
SI (Input)
CMD
Starts Reading Page Data into Buffer
Binary Page Size
XXXXX, A18-A16 + A15- A8 + 8 Dummy Bits
XXXX, PA10-7 PA6-0, XX XXXX XXXX
SO (Output)
Figure 24-4. Buffer Read
CS
SI (Input)
SO (Output)
CMD
Address for Binary Page Size
16 Dummy Bits + BFA7-BFA0
XXXX XXXX XXXX XXXX BFA7-0
X
No Dummy Byte (opcodes D1H and D3H)
1 Dummy Byte (opcodes D4H and D6H)
n
n+1
Each transition represents eight bits
AT45DB041E 57
8783G–DFLASH–1/2014