S71GL032A datasheet(49/102 Pages) SPANSION

49 / 102 page

March 31, 2005 S71GL032A_00_A0

S71GL032A Based MCPs

Advance

Informatio n

Notes:

1. When Sector Address is specified, any address in the selected sector is acceptable. However, when loading Write-Buffer

address locations with data, all addresses must fall within the selected Write-Buffer Page.

2. DQ7 may change simultaneously with DQ5. Therefore, DQ7 should be verified.

3. If this flowchart location was reached because DQ5= “1”, then the device FAILED. If this flowchart location was reached

because DQ1= “1”, then the Write to Buffer operation was ABORTED. In either case, the proper reset command must be

written before the device can begin another operation. If DQ1=1, write the Write-Buffer-Programming-Abort-Reset

command. if DQ5=1, write the Reset command.

4. See Table 22 for command sequences required for write buffer programming.

Figure 3. Write Buffer Programming Operation

Write “Write to Buffer”

command and

Sector Address

Write number of addresses

to program minus 1(WC)

and Sector Address

Write program buffer to

flash sector address

Write first address/data

Write to a different

sector address

FAIL or ABORT

PASS

Read DQ7 - DQ0 at

Last Loaded Address

Read DQ7 - DQ0 with

address = Last Loaded

Address

Write next address/data pair

WC = WC - 1

WC = 0 ?

Part of “Write to Buffer”

Command Sequence

Yes

Abort Write to

Buffer Operation?

DQ7 = Data?

DQ5 = 1?

DQ1 = 1?

Write to buffer ABORTED.

Must write “Write-to-buffer

Abort Reset” command

sequence to return

to read mode.

(Note 2)

(Note 3)

(Note 1)

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