Document Number: 002-00833 Rev. *L
Page 28 of 74
S29VS256R
S29VS128R
S29XS256R
S29XS128R
Notes:
1. SLSB indicates that a program or erase operation failed to program or erase because the sector was locked or the operation was attempted on the protected Secure
Silicon Region.
2. SLSB reflects the status of the most recent program or erase operation.
3. SLSB is cleared by “Clear Status Register” or by hardware reset.
Note:
1. BSB is used to check if a program or erase operation in progress in the current bank.
Table 28. Status Register - Bit 1
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Device Ready
Bit.
Overall status
Erase Suspend
Status Bit
Erase Status Bit Program Status
Bit
RFU
Program
Suspend Status
Bit
Sector Lock
Status Bit
Bank Status Bit
DRB
ESSB
ESB
PSB
RFU
PSSB
SLSB
BSB
1
Bits 6:1 only
valid when Bit 7
= 1
X
X
X
X
X
0
Sector not
locked during
operation
X
1
Bit 6:1 only valid
when Bit 7 = 1
X
X
X
X
X
1
Sector locked
error
X
Table 29. Status Register - Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Device Ready
Bit.
Overall status
Erase Suspend
Status Bit
Erase Status Bit Program Status
Bit
RFU
Program
Suspend Status
Bit
Sector Lock
Status Bit
Bank Status Bit
DRB
ESSB
ESB
PSB
RFU
PSSB
SLSB
BSB
0
Bits 6:1 only
valid when Bit 7
= 1
X
X
X
X
X
X
0
Program or
Erase op. in
addressed Bank
0
Bits 6:1 only
valid when Bit 7
= 1
X
X
X
X
X
X
1
Program or
Erase op. in
other Bank
1
Bit 6:1 only valid
when Bit 7 = 1
X
X
X
X
X
X
0
No active
Program or
Erase op.
1
Bit 6:1 only valid
when Bit 7 = 1
X
X
X
X
X
X
1
invalid
