MX29LA129MH Datasheet, PDF (29/71 Pages) Macronix International – 128M-BIT SINGLE VOLTAGE 3V ONLY UNIFORM SECTOR FLASH MEMORY

MX29LA129M H/L
WRITE OPERATION STATUS
The device provides several bits to determine the status
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
Byte/Word Program in Auto Program Algorithm
Q7#
Auto Erase Algorithm
0
Erase Suspend Read
1
Erase
(Erase Suspended Sector)
Suspended
Erase Suspend Read
Data
Mode
(Non-Erase Suspended Sector)
Erase Suspend Program
Q7#
Program-Suspended Read
Program
(Program-Suspended Sector)
Suspend
Program-Suspended Read
(Non-Program-Suspended Sector)
Write-to-Buffer Busy
Q7#
Abort
Q7#
Q6 Q5
Toggle 0
Toggle 0
No 0
Toggle
Data Data
Q3 Q2
N/A No
Toggle
1 Toggle
N/A Toggle
Data Data
Toggle 0 N/A N/A
Invalid (not allowed)
Data
Toggle 0
Toggle 0
N/A N/A
N/A N/A
Q1
0
N/A
N/A
Data
N/A
0
1
RY/BY#
0
0
1
1
0
1
1
0
0
Notes:
1. Q5 switches to "1" when an Word/Byte Program, Erase, or Write-to-Buffer operation has exceeded the maximum
timing limits. Refer to the section on Q5 for more information.
2. Q7 and Q2 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. Q1 switches to "1" when the device has aborted the write-to-buffer operation.
P/N:PM1171
REV. 1.0, FEB. 27, 2006
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