28F640W30 NUMONYX [Numonyx B.V], 28F640W30 Datasheet - Page 57

• Manufacturer Part Number: 28F640W30
• Description: Numonyx Wireless Flash Memory (W30)
• Manufacturer: NUMONYX [Numonyx B.V]

Numonyx™ Wireless Flash Memory (W30)
Table 21: Status Register Definitions
Table 22: Status Register Descriptions
Table 23: Status Register Device WSM and Partition Write Status Description
November 2007
Order Number: 290702-13
Bit
(SR[7])
7
6
5
4
3
2
1
0
DWS
DWS
0
0
1
1
7
Erase Suspend Status
Device Protect Status
Partition Write Status
Device WSM Status
Program Suspend
Program Status
Erase Status
VPP Status
(SR[0])
Name
Status
PWS
VPPS
DWS
PWS
ESS
DPS
PSS
ES
PS
0
1
0
1
ESS
6
The addressed partition is performing a program/erase operation.
EFP: the flash device has finished programming or verifying data, or is ready for data.
A partition other than the one currently addressed is performing a program/erase operation.
EFP: the flash device is either programming or verifying data.
No program/erase operation is in progress in any partition. Erase and Program suspend bits (SR[6,2])
indicate whether other partitions are suspended.
EFP: the flash device has exited EFP mode.
Does not occur in standard program or erase modes.
EFP: this combination does not occur.
0 = Device WSM is Busy
1 = Device WSM is Ready
0 = Erase in progress/completed
1 = Erase suspended
0 = Erase successful
1 = Erase error
0 = Program successful
1 = Program error
0 = V
1 = V
0 = Program in progress/completed
1 = Program suspended
0 = Unlocked
1 = Aborted erase/program attempt on
a locked block
0 = This partition is busy, but only if
SR[7]=0
1 = Another partition is busy, but only
if SR[7]=0
PP
PP
ES
5
OK
low detect, operation aborted
State
PS
4
VPPS
Description
3
See
combinations.
After issuing an Erase Suspend command, the WSM
halts and sets SR[7] and SR[6]. SR[6] remains set
until the flash device receives an Erase Resume
command.
SR[4] is set if the WSM failed to program a word.
The WSM indicates the V
completes.
SR[3] does not provide continuous V
not guaranteed when V
After receiving a Program Suspend command, the
WSM halts execution and sets SR[7] and SR[2]. These
bits remain set until a Resume command is received.
If an erase or program operation is attempted to a
locked block (if WP# = V
aborts the operation.
The addressed partition is erasing or programming. In
EFP mode, SR[0] indicates that a data-stream word
has finished programming or verifying, depending on
the particular EFP phase.
See
combinations.
• SR[7] indicates erase or program completion in
• SR[6:1] are invalid while SR[7] = 0.
• SR[5] is set if an attempted erase failed.
• A Command Sequence Error is indicated when
the flash device.
SR[7,5:4] are set.
Table 23
Table 23
PSS
2
for valid SR[7] and SR[0]
for valid SR[7] and SR[0]
Description
PP
PP
IL
V
), the WSM sets SR[1] and
level after program or erase
PPL
DPS
/V
1
PPH
PP
feedback and is
PWS
Datasheet
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