D a t a S h e e t
10.18 DQ1: Write-to-Buffer Abort
DQ1 indicates whether a Write-to-Buffer operation was aborted. Under these conditions DQ1 produces a 1.
The system must issue the Write-to-Buffer-Abort-Reset command sequence to return the device to reading
array data. See Write Buffer on page 18 for more details.
Table 10.5 Write Operation Status
DQ7
(Note 2)
DQ5
DQ2
Status
DQ6
(Note 1) DQ3 (Note 2) DQ1 RY/BY#
Embedded Program Algorithm
Embedded Erase Algorithm
Program-Suspended
DQ7#
0
Toggle
Toggle
0
0
N/A No toggle
0
0
0
Standard Mode
1
Toggle
N/A
Invalid (not allowed)
Data
1
Program-
Sector
Program Suspend Mode Suspend
Read
Non-Program
Suspended Sector
1
1
1
Erase-Suspended Sector
1
No toggle
0
N/A
Toggle
N/A
N/A
N/A
Erase-
Suspend
Read
Non-Erase Suspended
Sector
Data
Erase Suspend Mode
Erase-Suspend-Program
(Embedded Program)
DQ7#
Toggle
0
N/A
0
Busy (Note 3)
Abort (Note 4)
DQ7#
DQ7#
Toggle
Toggle
0
0
N/A
N/A
N/A
N/A
0
1
0
0
Write-to-
Buffer
Notes
1. DQ5 switches to 1 when an Embedded Program, Embedded Erase, or Write-to-Buffer operation exceeded the maximum timing limits. Refer to the section on
DQ5 for more information.
2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details.
3. The Data# Polling algorithm should be used to monitor the last loaded write-buffer address location.
4. DQ1 switches to 1 when the device aborts the write-to-buffer operation.
60
S29GL-N MirrorBit® Flash Family
S29GL-N_01_09 November 16, 2007
SPANSION [ SPANSION ]
