
SPRS145G
–
JULY 2000
–
REVISED FEBRUARY 2002
26
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
–
1443
memory maps (continued)
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FF0E
0800
Internal (DON = 1)
Reserved (DON = 0)
09FF
0A00
0200
On-Chip DARAM (B0)
§
(CNF = 0)
Reserved (CNF = 1)
On-Chip DARAM (B1)
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FE00
Reserved
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87FF
8800
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éééééééééé
8200
Reserved
On-Chip Flash Memory (Sectored)
0000
005F
0060
0080
00FF
Hex
Data
Memory-Mapped
Registers/Reserved Addresses
On-Chip DARAM B2
01FF
Illegal
02FF
0300
03FF
0400
04FF
0500
07FF
Reserved
7000
Peripheral Memory-Mapped
Registers (System, WD, ADC,
7FFF
8000
Illegal
6FFF
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0000
Hex
I/O
FEFF
FF00
FF0F
Reserved
FFFF
FFFE
FF10
Flash Control Mode Register
FFFF
0FFF
1000
Reserved
Reserved
0000
Program
FFFF
FF00
FDFF
On-Chip DARAM (B0)
(CNF = 1)
Reserved (CNF = 0)
0FFF
1000
3FFF
Hex
7FFF
8000
FEFF
Illegal
Flash Sector 0 (4K)
Interrupt Vectors (0000
–
003Fh)
Reserved
(0040
–
0043h)
User code begins at 0044h
Flash Sector 1 (12K)
4000
Reserved
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Reserved or Illegal
Reserved (PON = 0)
81FF
SARAM (512 words)
éééééééééé
SARAM
(See Table 1 for details.)
Reserved
0100
Illegal
NOTE A: Boot ROM: If the boot ROM is enabled, then addresses 0000
–
00FF in the program space will be occupied by boot ROM.
Addresses 0040h
–
0043h in program memory are reserved for code security passwords.
When CNF = 1, addresses FE00h
–
FEFFh and FF00h
–
FFFFh are mapped to the same physical block (B0) in program-memory space. For
example, a write to FE00h has the same effect as a write to FF00h. For simplicity, addresses FE00h
–
FEFFh are referred to as reserved.
§
When CNF = 0, addresses 0100h
–
01FFh and 0200h
–
02FFh are mapped to the same physical block (B0) in data-memory space. For example,
a write to 0100h has the same effect as a write to 0200h. For simplicity, addresses 0100h
–
01FFh are referred to as reserved.
Addresses 0300h
–
03FFh and 0400h
–
04FFh are mapped to the same physical block (B1) in data-memory space. For example, a write to 0400h
has the same effect as a write to 0300h. For simplicity, addresses 0400h
–
04FFh are referred to as reserved.
Figure 3. TMS320LF2403A Memory Map