31

3387L–DFLASH–6/06

AT45DB321C

15.5.5

Manufacturer and Device ID Read (Opcode: 9FH)

15.6

Auto Page Rewrite Flowchart

Figure 15-1. Algorithm for Programming or Reprogramming of the Entire Array Sequentially

Notes:

1. This type of algorithm is used for applications in which the entire array is programmed sequentially, filling the array page-by-

page.

2. A page can be written using either a Main Memory Page Program operation or a Buffer Write operation followed by a Buffer

to Main Memory Page Program operation.

3. The algorithm above shows the programming of a single page. The algorithm will be repeated sequentially for each page

within the entire array.

SI

1

0

0

11

11

1

CS

SO

SCK

12345

789

10

11

12

17

18

HIGH IMPEDANCE

000

PRODUCT ID OUTPUT

COMMAND OPCODE

MSB

6

11

0

LSB

MSB

0

MANUFACTURER ID

START

MAIN MEMORY PAGE PROGRAM

THROUGH BUFFER

(82H, 85H)

END

provide address

and data

BUFFER WRITE

(84H, 87H)

BUFFER TO MAIN

MEMORY PAGE PROGRAM

(83H, 86H)