S29GL01GS datasheet(29/104 Pages) SPANSION

29 / 104 page

December 21, 2012 S29GL_128S_01GS_00_07

GL-S MirrorBit® Family

Data

She e t

with invalid or unstable data values. In this case the same area will need to be reprogrammed with the same

data or erased to ensure data values are properly programmed or erased.

Figure 5.2 Write Buffer Programming Operation with Data Polling Status

Notes:

1. DQ7 should be rechecked even if DQ5 = 1 because DQ7 may change simultaneously with DQ5.

2. 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 Buffer operation was ABORTED. In either case the proper RESET command must be written to the device to return the

device to READ mode. Write-Buffer-Programming-Abort-Rest if DQ1 = 1, either Software RESET or Write-Buffer-Programming-Abort-

Reset if DQ5 = 1.

3. See Table 6.1, Command Definitions on page 57 for the command sequence as required for Write Buffer Programming.

4. 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.

Write “Write to Buffer”

command Sector Address

Write “Word Count”

to program - 1 (WC)

Sector Address

Write Starting Address/Data

WC = 0?

ABORT Write to

Buffer Operation?

Write to a different

Sector Address

Write to Buffer ABORTED.

Must write “Write-to-Buffer

ABORT RESET”

command sequence to

return to READ mode.

Write next Address/Data pair

WC = WC - 1

Write Program Buffer to Flash

Confirm, Sector Address

Read DQ7-DQ0 with

Addr = LAST LOADED ADDRESS

DQ7 = Data?

DQ5 = 1?

DQ1 = 1?

Read DQ7-DQ0 with

Addr = LAST LOADED ADDRESS

DQ7 = Data?

FAIL or ABORT

(Note 2)

PASS

Yes

(Note 4)

Yes

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