M58LT256JST, M58LT256JSB
Status Register
Table 9.
Bit
Status Register bits
Logic
Name
Type
Definition
level(1)
'1'
'0'
'1'
'0'
'1'
'0'
'1'
'0'
'1'
'0'
'1'
'0'
'1'
'0'
Ready
SR7 P/EC status
Status
Busy
Erase suspended
SR6 Erase suspend status Status
Erase/blank check
Erase In progress or completed
Erase/blank check error
Erase/blank check success
Program error
SR5
Error
Error
Error
Status
Error
status
SR4 Program status
Program success
V
PP invalid, abort
SR3
SR2
SR1
VPP status
VPP OK
Program suspended
Program suspend
status
Program in progress or completed
Program/erase on protected block, abort
No operation to protected blocks
SR7 = ‘1’ Not allowed
Block protection
status
'1'
'0'
Program or erase operation in a bank
SR7 = ‘0’
other than the addressed bank
Bank write status
Status
No program or erase operation in the
SR7 = ‘1’
device
Program or erase operation in
SR7 = ‘0’
addressed bank
SR0
SR7 = ‘1’ Not allowed
The device is NOT ready for the next
SR7 = ‘0’ buffer loading or is going to exit the
BEFP mode
'1'
'0'
Multiple word
program status (buffer
enhanced factory
program mode)
Status
The device has exited the BEFP
SR7 = ‘1’
mode
The device is ready for the next buffer
SR7 = ‘0’
loading
1. Logic level '1' is High, '0' is Low.
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NUMONYX [ NUMONYX B.V ]
