lrs1302 Sharp Microelectronics of the Americas, lrs1302 Datasheet - Page 23

• Manufacturer Part Number: lrs1302
• Description: 8m Flash And 1m Sram
• Manufacturer: Sharp Microelectronics of the Americas

SR.5 = ERASE AND CLEAR
SR.4 = BYTE WRITE AND SET LOCK-BITeSTATUS
SR.3 = V,, STATUS
SR.2 = BYTE WRITE SUSPEND
SR.l = DEVICE
SR.0 = RESERVED
SR.7 = WRITE STATE MACHINE
SR.6 = ERASE SUSPEND
0 = Successful
O=V,,OK
0 = Byte Write in Progress/Completed
1 = Master Lock-Bit,
0 = Unlock
WSMS
0 = Block Erase in Progress/Completed
1= Error in Block Erasure or Clear Lock-Bi
1 = Error in Byte Write or Set Master/Block
0 = Successful
1 = VP, Low Detect, Operation
1 = Byte Write Suspended
1= Ready
0 = Busy
1= Block Erase Suspended
SHARP
7
Lock-Bit
Detected,
1
PROTECT
Block Erase or Clear Lock-Bits
Byte Write or Set Master/Block
Operation
FOR FUTURE
ESS
6
Block Lock-Bit
STATUS
STATUS
1
Abort
LOCK-BITS
STATUS
ECLBS
ENHANCEMENTS
STATUS
Abort
5
and/or
STATUS
Table 7. Status Register
(
BWSLBS
is
p
Lock-Bit
LRS13023
4
Lock
(
SR.3 does not provide
only after Block Erase, Byte Write, Set Block/Master
SR.3 is not guaranteed
SR.1 does not provide
and block lock-bit
master lock-bit,
Erase, Byte Write, or Lock-Bit
sequences.
attempted
lock-bit
lock and master lock configuration
and block lock-bit
SR.0 is reserved
out when polling the status register.
NOTES:
Check SR.7 to determine
SR6-0 are invalid while SR.7=“0”.
If both SR.5 and SR.4 are “1”s after a block erase or
lock-bit
sequence was entered.
level. The WSM interrogates
Lock-Bit,
when V,,=V,,,.
the Read Identifier
lock-bit
VPRS
3
is set, and/or
Definition
configuration
configuration
or Clear Block Lock-Bits
operation,
It informs
block lock-bit,
for future
BWSS
values. The WSM interrogates
status.
Codes command
2
if the block lock-bit
the system,
RP is not V,,.
compIetion.
attempt,
a continuous
a continuous
to reports
block erase, byte write, or
use and should
and indicates
configuration
and RP only after Block
an improper
accurate
DPS
depending
command
1
codes after writing
indication
indication
indicates
Reading
is set, master
feedback
be masked
I
the V,,
command
command
sequences.
on the
master
the block
of master
of VP,
the
R
0
level
only
21