LM3S611 Datasheet, PDF (106/409 Pages) List of Unclassifed Manufacturers – Microcontroller

Internal Memory
Register 2: Flash Memory Protection Program Enable (FMPPE), offset 0x134
Note: Offset is relative to System Control base address of 0x400FE000
This register stores the execute-only (FMPPE) protection bits for each 2-KB flash block. This
register is loaded during the power-on reset sequence.
The factory setting for the FMPPE register is a value of 1 for all implemented banks. This
implements a policy of open access and programmability. The register bits may be changed by
writing the specific register bit. However, this register is R/W0; the user can only change the
protection bit from a 1 to a 0 (and may NOT change a 0 to a 1).
The changes are not permanent until the register is committed (saved), at which point the bit
change is permanent. If a bit is changed from a 1 to a 0 and not committed, it may be restored by
executing a power-on reset sequence.
For additional information, see “Flash Memory Protection” on page 100.
Flash Memory Protection Program Enable (FMPPE)
Offset 0x130 and 0x134
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Type
Reset
Block15 Block14
RR/WO 0
01
RR/WO 0
01
Block13
RR/WO 0
01
Blockre1s2erveBdlock11 Block10
RR/WO 0
01
RR/WO 0
01
RR/WO 0
01
Block9
RR/WO 0
01
Block8
RR/WO 0
01
Block7
R/W0
1
Block6
R/W0
1
Block5
R/W0
1
Block4
R/W0
1
Block3
R/W0
1
Block2
R/W0
1
Block1
R/W0
1
Block0
R/W0
1
Bit/Field
31:16
15:0
Name
reserved
Block15-
Block0
Type
RO
R/W0
Reset
0
1
Description
Reserved bits return an indeterminate value, and
should never be changed.
Enable 2-KB flash blocks to be written or erased
(FMPPE register). This policy may be combined with
the FMPRE register as shown in Table 7-1 on
page 101.
106
April 27, 2007
Preliminary