LM3S9781 Datasheet, PDF (206/1155 Pages) Texas Instruments – Stellaris® LM3S9781 Microcontroller

Internal Memory
In addition, the USER_REG0, USER_REG1, USER_REG2, USER_REG3, and BOOTCFG registers
each use bit 31 (NW) to indicate that they have not been committed and bits in the register may be
changed from 1 to 0. Table 7-2 on page 206 provides the FMA address required for commitment of
each of the registers and the source of the data to be written when the FMC register is written with
a value of 0xA442.0008. After writing the COMT bit, the user may poll the FMC register to wait for
the commit operation to complete.
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
7.4 Register Map
Table 7-3 on page 206 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 FMA, FMD, FMC, FCRIS,
FCIM, FCMISC, FMC2, FWBVAL, and FWBn 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
0x100 -
0x17C
FWBn
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
Flash Write Buffer n
See
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June 29, 2010
Texas Instruments-Advance Information