NP8P128A13T1760E Micron Technology Inc, NP8P128A13T1760E Datasheet - Page 38
NP8P128A13T1760E
Manufacturer Part Number
NP8P128A13T1760E
Description
Manufacturer
Micron Technology Inc
Datasheet
1.NP8P128A13T1760E.pdf
(94 pages)
Specifications of NP8P128A13T1760E
Lead Free Status / RoHS Status
Compliant
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Figure 8:
Datasheet
38
Protection Register Memory Map
For the 2K OTP space, there exists an additional 16-bit lock register called PR_LOCK1.
Each bit in the PR_LOCK1 register locks a 128-bit segment of the 2K-OTP space.
Therefore, the 16 128-bit segments of the 2K OTP space can be locked individually.
Hence, any 128-bit segment can be first programmed and then locked using the
protection program command followed by protection register data. The PR-LOCK1
register is physically located at the address 89h as shown in the
Register Memory Map” on page
After PR-LOCK register bits have been programmed, no further changes can be made to
the protection registers' stored values. Protection Program commands written to a
locked section result in a Status Register error (Program Error bit SR.4 and Lock Error
bit SR.1 are set to 1). Once locked, Protection register states are not reversible.
109h
102h
8Ah
91h
89h
88h
85h
84h
81h
80h
Group 17
Group 2
Group 1
Group 0
Intel Factory Programmed
User Programmed
User Programmed
User Programmed
4 Words (64 bits)
4 Words (64 bits)
Lock Register 1
Lock Register 0
8 Words
8 Words
38.
Numonyx® Omneo™ P8P Datasheet
Figure 8, “Protection
August 2010
316144-07
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