PF38F5070M0P0B NUMONYX [Numonyx B.V], PF38F5070M0P0B Datasheet - Page 58

• Manufacturer Part Number: PF38F5070M0P0B
• Description: Numonyx Wireless Flash Memory (W18)
• Manufacturer: NUMONYX [Numonyx B.V]

Table 26: Status Register Descriptions
Table 27: Status Register Device WSM and Partition Write Status Description
10.7
Datasheet
58
Bit
(SR[7])
7
6
5
4
3
2
1
0
DWS
0
0
1
1
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
DWS
VPPS
PWS
ESS
PSS
DPS
ES
PS
0
1
0
1
Clear Status Register
The Clear Status Register command clears the Status Register and leaves all partition
output states unchanged. The WSM can set all Status Register bits and clear bits
SR[7:6,2,0]. Because bits SR[5,4,3,1] indicate various error conditions, they can only
be cleared by the Clear Status Register command. By allowing system software to reset
these bits, several operations (such as cumulatively programming several addresses or
erasing multiple blocks in sequence) can be performed before reading the Status
Register to determine error occurrence. If an error is detected, the Status Register
must be cleared before beginning another command or sequence. Device reset (RST#
= V
IL
) also clears the Status Register. This command functions independently of V
The addressed partition is performing a program/erase operation.
EFP: 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 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 device has exited EFP mode.
Won’t 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
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
OK
low detect, operation aborted
State
Description
SR[7] indicates erase or program completion in the
device. SR[6:1] are invalid while SR[7] = 0. See
Table 27
After issuing an Erase Suspend command, the WSM
halts and sets SR[7] and SR[6]. SR[6] remains set
until the device receives an Erase Resume command.
SR[5] is set if an attempted erase failed. A Command
Sequence Error is indicated when SR[7,5:4] are set.
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
feedback and isn’t guaranteed when V
After receiving a Program Suspend command, the
WSM halts execution and sets SR[7] and SR[2]. They
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.
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
and SR[0] combinations.
Numonyx™ Wireless Flash Memory (W18)
Numonyx™ Wireless Flash Memory (W18)
for valid SR[7] and SR[0] combinations.
Description
PP
IL
Table 27
), the WSM sets SR[1] and
level after program or erase
Order Number: 290701-18
for valid SR[7]
PP
November 2007
≠ V
PP1/2
PP
.
PP.