LM3S5K31 Datasheet, PDF (322/1121 Pages) Texas Instruments – Stellaris® LM3S5K31 Microcontroller

Internal Memory
■ Changes to the BOOTCFG register are effective after the next reset.
■ The NW bit in the USER_REG0, USER_REG1, USER_REG2, USER_REG3, and BOOTCFG
registers is cleared when the register is committed. Once this bit is cleared, additional changes
to the register are not allowed.
Important: After being committed, these registers can only be restored to their factory default values
by performing the sequence described in “Recovering a "Locked"
Microcontroller” on page 179. The mass erase of the main Flash memory array caused
by the sequence is performed prior to restoring these registers.
Table 7-2. User-Programmable Flash Memory Resident Registers
Register to be Committed
FMPRE0
FMPRE1
FMPPE0
FMPPE1
USER_REG0
USER_REG1
USER_REG2
USER_REG3
BOOTCFG
FMA Value
0x0000.0000
0x0000.0002
0x0000.0001
0x0000.0003
0x8000.0000
0x8000.0001
0x8000.0002
0x8000.0003
0x7510.0000
Data Source
FMPRE0
FMPRE1
FMPPE0
FMPPE1
USER_REG0
USER_REG1
USER_REG2
USER_REG3
FMD
7.3 Register Map
Table 7-3 on page 322 lists the ROM Controller register and the Flash memory and control registers.
The offset listed is a hexadecimal increment to the register's address. The Flash memory register
offsets are relative to the Flash memory control base address of 0x400F.D000. The ROM and Flash
memory protection register offsets are relative to the System Control base address of 0x400F.E000.
Table 7-3. Flash Register Map
Offset Name
Type
Reset
Description
Flash Memory Registers (Flash Control Offset)
0x000 FMA
R/W
0x0000.0000
0x004 FMD
R/W
0x0000.0000
0x008 FMC
R/W
0x0000.0000
0x00C FCRIS
RO
0x0000.0000
0x010 FCIM
R/W
0x0000.0000
0x014 FCMISC
R/W1C 0x0000.0000
0x020 FMC2
R/W
0x0000.0000
0x030 FWBVAL
R/W
0x0000.0000
0x0F8 FCTL
R/W
0x0000.0000
Flash Memory Address
Flash Memory Data
Flash Memory Control
Flash Controller Raw Interrupt Status
Flash Controller Interrupt Mask
Flash Controller Masked Interrupt Status and Clear
Flash Memory Control 2
Flash Write Buffer Valid
Flash Control
See
page
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January 20, 2012
Texas Instruments-Production Data