EN29GL128H_10 Datasheet, PDF (23/54 Pages) Eon Silicon Solution Inc. – 128 Megabit (16384K x 8-bit / 8192K x 16-bit) Flash Memory Page mode Flash Memory, CMOS 3.0 Volt-only

EN29GL128H/L
Advanced Sector Protection/Unprotection
The Advanced Sector Protection/Unprotection feature disables or enables programming or erase
operations in any or all sectors and can be implemented through software and/or hardware methods,
which are independent of each other. This section describes the various methods of protecting data
stored in the memory array. An overview of these methods in shown in Figure 8.
Figure 8. Advanced Sector Protection/Unprotection
Lock Register
The Lock Register consists of 4 bits. The Secured Silicon Sector Protection Bit is DQ0, Persistent
Protection Mode Lock Bit is DQ1, Persistent Sector Protection OTP bit is DQ3 and DYB Lock Boot Bit is
DQ4. If DQ0 is ‘0’, it means that the Customer Secured Silicon area is locked and if DQ0 is ‘1’, it means
This Data Sheet may be revised by subsequent versions
23
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc.,
Rev. K, Issue Date: 2010/05/11
www.eonssi.com