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SST26VF032B-104I/SM датащи(PDF) 36 Page - Microchip Technology

номер детали SST26VF032B-104I/SM
подробное описание детали  2.5V/3.0V 32-Mbit Serial Quad I/O™ (SQI™) Flash Memory
PDF  82 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

SST26VF032B-104I/SM датащи(HTML) 36 Page - Microchip Technology

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SST26VF032B/SST26VF032BA
DS20005218K-page 36
 2013-2022 Microchip Technology Inc. and its subsidiaries
5.34
Write Block Protection Register
(WBPR)
The Write Block Protection Register (WBPR) command
changes the Block Protection register data to indicate
the protection status. Execute WREN before executing
WBPR.
To execute a Write Block Protection Register operation
the host drives CE# low, sends the Write Block Protec-
tion Register command cycle (42H), sends 18 cycles of
data, and finally drives CE# high. Data input must be
most significant bit(s) first. See Table 5-6 for definitions
of each bit in the Block Protection register. See
Figure 5-38 and Figure 5-39.
FIGURE 5-38:
WRITE BLOCK PROTECTION REGISTER SEQUENCE (SQI)
FIGURE 5-39:
WRITE BLOCK PROTECTION REGISTER SEQUENCE (SPI)
Note:
MSN = Most Significant Nibble, LSN = Least Significant Nibble
Block Protection Register (BPR) C[1:0]=42H
MODE 3
0
SCK
SIO[3:0]
CE#
C1 C0
MODE 0
2
H0 L0
MSN LSN
4
H1 L1
6
H2 L2
8
H3 L3
10
H4 L4
12
H5 L5
HN LN
BPR [79:72]
BPR [7:0]
Note:
C[1:0]=42H
CE#
SO
SI
SCK
Data Byte0
01 2 3 4 5 6 7 8
Data Byte1
Data Byte2
Data ByteN
42H
15 16
23 24
31 32
MODE 0
MODE 3
OP Code



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