D a t a S h e e t
additional sector erase commands. To ensure the command is accepted, the sys-
tem software should check the status of DQ3 prior to and following each
subsequent sector erase command. If DQ3 is high on the second status check,
the last command might not be accepted. Table 6 shows the outputs for DQ3.
Table 6. Write Operation Status
DQ7
DQ5
DQ2
Operation
(Note 2)
DQ6
(Note 1)
DQ3
N/A
1
(Note 2)
RY/BY#
Embedded Program Algorithm
Embedded Erase Algorithm
DQ7#
0
Toggle
Toggle
0
0
No toggle
Toggle
0
0
Standard
Mode
Reading within Erase
Suspended Sector
1
No toggle
0
N/A
Toggle
1
Erase
Suspend
Mode
Reading within Non-Erase
Suspended Sector
Data
Data
Data
0
Data
N/A
Data
N/A
1
0
Erase-Suspend-Program
DQ7#
Toggle
Notes:
1. DQ5 switches to 1 when an Embedded Program or Embedded Erase operation exceeds the maximum timing limits.
See DQ5: Exceeded Timing Limits, on page 30 for more information.
2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further
details.
32
S29AL008D
S29AL008D_00A3 June 16, 2005
SPANSION [ SPANSION ]
