M58WR032KU70ZA6U NUMONYX, M58WR032KU70ZA6U Datasheet - Page 39

• Manufacturer Part Number: M58WR032KU70ZA6U
• Description: NUMM58WR032KU70ZA6U NUM 32MB NOR FLASH P
• Manufacturer: NUMONYX

M58WRxxxKU, M58WRxxxKL
7.3
7.4
7.5
Erase Status bit (SR5)
The Erase Status bit can be used to identify if the memory has failed to verify that the block
has erased correctly. When the Erase Status bit is High (set to ‘1’), the Program/Erase
Controller has applied the maximum number of pulses to the block and still failed to verify
that it has erased correctly. The Erase Status bit should be read once the Program/Erase
Controller Status bit is High (Program/Erase Controller inactive).
Once set High, the Erase Status bit can only be reset Low by a Clear Status Register
command or a hardware reset. If set High it should be reset before a new Program or Erase
command is issued, otherwise the new command will appear to fail.
Program Status bit (SR4)
The Program Status bit is used to identify either a Program failure, or an attempt to program
a ‘1’ to an already programmed bit when V
When the Program Status bit goes High (set to ‘1’) after a Program failure, the
Program/Erase Controller has applied the maximum number of pulses to the byte and still
failed to verify that it has programmed correctly.
After an attempt to program a ‘1’ to an already programmed bit, the Program Status bit SR4
only goes High (set to ’1’) if V
attempt is not shown).
The Program Status bit should be read once the Program/Erase Controller Status bit is High
(Program/Erase Controller inactive).
Once set High, the Program Status bit can only be reset Low by a Clear Status Register
command or a hardware reset. If set High it should be reset before a new command is
issued, otherwise the new command will appear to fail.
V
The V
and Erase operations. The V
operation. Indeterminate results can occur if V
When the V
voltage; when the V
the V
operations cannot be performed.
Once set High, the V
command or a hardware reset. If set High it should be reset before a new Program or Erase
command is issued, otherwise the new command will appear to fail.
PP
PP
PP
Status bit (SR3)
Lockout Voltage, V
Status bit can be used to identify an invalid voltage on the V
PP
Status bit is Low (set to ‘0’), the voltage on the V
PP
PP
Status bit is High (set to ‘1’), the V
Status bit can only be reset Low by a Clear Status Register
PPLK
PP
PP
, the memory is protected and Program and Erase
pin is only sampled at the beginning of a Program or Erase
= V
PPH
(if V
PP
PP
= V
PP
≠ V
PPH
becomes invalid during an operation.
PPH
.
, SR4 remains Low (set to ‘0’) and the
PP
pin has a voltage that is below
PP
pin was sampled at a valid
PP
pin during Program
Status Register
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