S29CD-J_12 SPANSION [SPANSION], S29CD-J_12 Datasheet - Page 44
S29CD-J_12
Manufacturer Part Number
S29CD-J_12
Description
Manufacturer
SPANSION [SPANSION]
Datasheet
1.S29CD-J_12.pdf
(81 pages)
- Current page: 44 of 81
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44
Hardware Methods
4. N = 23 for S29CD016J/CL016J,
31 for S29CD032J/CL032J.
(Two outermost sectors
locked in large bank)
Sector Group N-2
Sector Group N-1
Sector Group N
Memory Array
Sector Group 0
Sector Group 1
Sector Group 2
WP# = V
IL
4
0 = PPBs Unlocked
Figure 9.1 Advanced Sector Protection/Unprotection
S29CD-J and S29CL-J Flash Family
5. PPBs programmed individually,
6. 0 = Sector Group Unprotected;
but cleared collectively.
1 = Sector Group Protected
Protection Bit
PPB Lock Bit
Persistent
64-bit Password
(One Time Protect)
Password Method
(PPB)
PPB N-2
PPB N-1
PPB N
PPB 0
PPB 1
PPB 2
D a t a
5,6
Software Methods
1 = PPBs Locked
1,2,3
S h e e t
Persistent Method
7. Protect effective only if PPB Lock Bit is
8. Volatile Bits.
9. 0 = Sector Group Unprotected;
unlocked and corresponding PPB is “0”
(unprotected).
1 = Sector Group Protected
S29CD-J_CL-J_00_B7 October 11, 2012
1. Bit is volatile, and defaults to “0” on reset.
2. Programming to “1” locks all PPBs to their
3. Once programmed to “1”, requires hardware
current state.
reset to unlock.
Protection Bit
Dynamic
DYB N-2
DYB N-1
(DYB)
DYB N
DYB 0
DYB 1
DYB 2
7,8,9
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