21.6 Reset Timing
CS
t
t
CSS
REC
SCK
RESET
t
RST
HIGH IMPEDANCE
HIGH IMPEDANCE
SO (OUTPUT)
SI (INPUT)
Note:
The CS signal should be in the high state before the RESET signal is deasserted.
21.7 Command Sequence for Read/Write Operations for Page Size 512 Bytes (Except Status
Register Read, Manufacturer and Device ID Read)
SI (INPUT)
CMD
8 bits
8 bits
8 bits
X X X X X X X X X X X X X X X X
X X X X X X X X
LSB
MSB
Don’t Care
Bits
Page Address
(A21 - A9)
Byte/Buffer Address
(A8 - A0/BFA8 - BFA0)
21.8 Command Sequence for Read/Write Operations for Page Size 528 Bytes (Except Status
Register Read, Manufacturer and Device ID Read)
SI (INPUT)
CMD
8 bits
8 bits
8 bits
X X X XX X X X X X X X X X X X
X X X X X X X X
LSB
MSB
1 Don’t Care
Page Address
(PA12 - PA0)
Byte/Buffer Address
(BA9 - BA0/BFA9 - BFA0)
Bit
38
AT45DB321D
3597J–DFLASH–4/08
ATMEL [ ATMEL ]
