m58wr032et STMicroelectronics, m58wr032et Datasheet - Page 17

• Manufacturer Part Number: m58wr032et
• Description: 32 Mbit 2mb X 16, Multiple Bank, Burst 1.8v Supply Flash Memory
• Manufacturer: STMicroelectronics

The lock status can be monitored for each block
using the Read Electronic Signature command.
Locked-Down blocks revert to the locked (and not
locked-down) state when the device is reset on
Table 5. Standard Commands
Note: 1. X = Don’t Care, WA=Word Address in targeted bank, RD=Read Data, SRD=Status Register Data, ESD=Electronic Signature Data,
Read Array
Read Status Register
Read Electronic Signature
Read CFI Query
Clear Status Register
Block Erase
Program
Program/Erase Suspend
Program/Erase Resume
Protection Register Program
Set Configuration Register
Block Lock
Block Unlock
Block Lock-Down
The second Bus Write cycle latches the block
address.
2. Must be same bank as in the first cycle. The signature addresses are listed in
3. Any address within the bank can be used.
QD=Query Data, BA=Block Address, BKA= Bank Address, PD=Program Data, PRA=Protection Register Address, PRD=Protection
Register Data, CRD=Configuration Register Data.
Commands
1+
1+
1+
1+
1
2
2
1
1
2
2
2
2
2
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Op.
BKA or BA
BKA or BA
BKA or BA
BKA or BA
1st Cycle
BKA or
WA
Add
PRA
CRD
BKA
BKA
BKA
BKA
BKA
X
X
(3)
power-down.
ter issuing a Block Lock-Down command. Refer to
the section, Block Locking, for a detailed explana-
tion and
ations Flowchart and Pseudo
for using the Lock-Down command.
(3)
(3)
(3)
(3)
40h or 10h
Data
Bus Operations
FFh
70h
90h
98h
50h
20h
B0h
D0h
C0h
60h
60h
60h
60h
APPENDIX
Table 6.
Table 13.
M58WR032ET, M58WR032EB
Read
Read
Read
Read
Write
Write
Write
Write
Write
Write
Write
Op.
C.,
shows the Lock Status af-
Figure 27., Locking Oper-
2nd Cycle
Code, for a flowchart
BKA
BKA
BKA
CRD
Add
PRA
WA
WA
BA
BA
BA
BA
(2)
(2)
(2)
Data
SRD
ESD
PRD
D0h
D0h
03h
01h
2Fh
RD
QD
PD
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