Buffer Write
· Completes writing into selected buffer
CS
SI or I/O7 - I/O0
(INPUT)
CMD
X
X
X···X, BFA10-8
BFA7-0
n
n+1
Last Byte
Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
Starts self-timed erase/program operation
CS
SI or I/O7 - I/O0
CMD
XXXXXXX PA13
PA12-5
PA4-0, XXX
X···X
(INPUT)
Each transition
represents 8 bits
n = 1st byte
n+1 = 2nd byte
Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
FLASH MEMORY ARRAY
PAGE (1056 BYTES)
MAIN MEMORY
PAGE TO
BUFFER 1
BUFFER 1 (1056 BYTES)
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2 (1056 BYTES)
BUFFER 1
READ
SO
MAIN MEMORY
PAGE READ
I/O INTERFACE
I/O7 - I/O0
BUFFER 2
READ
20
AT45CS1282 [Preliminary]
3447A–DFLSH–2/04
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