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PM0020 Datasheet(PDF) 29 Page - STMicroelectronics

Part # PM0020
Description  STR91xFA Flash programming manual
PDF  87 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0020 Datasheet(HTML) 29 Page - STMicroelectronics

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PM00020
STR91xFA Flash memory
29/87
1.13.3
Protection level 2 register (STR91xFAxx6 and STR91xFAxx7)
This register can be read using the RSIG command (see Section 1.11.2) or by JTAG. The
LOCK bit can be written via CUI or JTAG. Other bits can be written only via JTAG. The
factory default settings may be modified by the user via JTAG. The register is not cleared by
a device reset.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
PL2B0S[31:16]
rrr
rr
rr
rrr
rr
rr
rr
15
14
13
12
11
10
98
76543
210
PL2B0S[15:0]
rrrr
rrrr
rrrrr
rrr
Bits 31:0
PL2B0S[7:0]: Level 2 Protection Status on Bank 0 Sector x.
0: Sector x of Bank 0 is not Level 2 write protected (default)
1: Sector x of Bank 0 is Level 2 write protected
15
14
13
12
11
10
9
876
54
32
10
Reserved
LOCK
SECURI
TY
PL2B1S[7:0]
rw
rrr
rr
rr
rr
Bits 15:10
Reserved.
Bit 9
LOCK: OTP sector lock bit.
See also Section 1.12.8.
0: OTP sector not locked (default)
1: OTP sector locked
Bit 8
SECURITY: JTAG Access Security Bit.
0: JTAG access allowed (default)
1: JTAG access not allowed
Bits 7:0
PL2B1S[3:0]: Level 2 Protection Status on Bank 1 Sector x.
0: Sector x of Bank 1 is not Level 2 write protected (default)
1: Sector x of Bank 1 is Level 2 write protected



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