AM29DL400B_05 Datasheet, PDF (24/47 Pages) Advanced Micro Devices – 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory

Table 6. Write Operation Status
Standard
Mode
Erase
Suspend
Mode
Status
Embedded Program Algorithm
Embedded Erase Algorithm
Erase-Suspend-
Read
Erase
Suspended Sector
Non-Erase
Suspended Sector
Erase-Suspend-Program
DQ7
(Note 2)
DQ7#
0
DQ6
Toggle
Toggle
1
No toggle
Data
DQ7#
Data
Toggle
DQ5
(Note 1)
0
0
0
Data
0
DQ3
N/A
1
N/A
Data
N/A
DQ2
(Note 2)
No toggle
Toggle
Toggle
Data
N/A
RY/BY#
0
0
1
1
0
Notes:
1. DQ5 switches to ‘1’ when an Embedded Program or Embedded Erase operation has 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. When reading write operation status bits, the system must always provide the bank address where the Embedded Algorithm is in
progress. The device outputs array data if the system addresses a non-busy bank.
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Am29DL400B