MX29LV320AT/B
WRITE OPERATION STATUS
The device provides several bits to determine the sta-
tus of a write operation:Q2, Q3, Q5, Q6, Q7, and RY/BY.
Table 5 and the following subsections describe the func-
tions of these bits. Q7, RY/BY, and Q6 each offer a
method for determining whether a program or erase op-
eration is complete or in progress. These three bits are
discussed first.
Table 5. Write Operation Status
Status
Q7
Q6
Q5
Q3
Q2 RY/BY
Note1
Note2
Byte/Word Program in Auto Program Algorithm
Auto Erase Algorithm
Q7
Toggle
Toggle
0
N/A
1
No
0
Toggle
0
1
0
0
Toggle
0
1
Erase Suspend Read
(Erase Suspended Sector)
No
Toggle
N/A Toggle
In Progress
Erase Suspended Mode
Erase Suspend Read
Data
Q7
Data Data Data Data
1
0
0
(Non-Erase Suspended Sector)
Erase Suspend Program
Toggle
Toggle
0
1
N/A N/A
Byte/Word Program in Auto Program Algorithm
Q7
N/A
1
No
Toggle
Exceeded
Time Limits Auto Erase Algorithm
0
Toggle
Toggle
1
1
Toggle
0
0
Erase Suspend Program
Q7
N/A N/A
Notes:
1. Performing successive read operations from the erase-suspended sector will cause Q2 to toggle.
2. Performing successive read operations from any address will cause Q6 to toggle.
3. Reading the byte/word address being programmed while in the erase-suspend program mode will indicate logic "1"
at the Q2 bit.
However, successive reads from the erase-suspended sector will cause Q2 to toggle.
P/N:PM1008
REV. 1.1, MAY 28, 2004
20
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