
SPRS145J  JULY 2000  REVISED NOVEMBER 2004
28
POST OFFICE BOX 1443 
 HOUSTON, TEXAS 772511443
memory maps (continued)
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On-Chip DARAM (B0)§ (CNF = 0)
Reserved (CNF = 1)
On-Chip DARAM (B1)
Reserved
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Registers (System, WD, ADC,
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8800
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FE00
Reserved
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8000
87FF
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Illegal
On-Chip ROM (6K)
Interrupt Vectors (0000003Fh)
Reserved (00400043h)
User code begins at 0044h
Program
Hex
0000
Data
Memory-Mapped
Registers/Reserved Addresses
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Illegal
On-Chip DARAM (B0) (CNF = 1)
Reserved (CNF = 0)
On-Chip ROM memory
Reserved or Illegal
0000
Hex
FFFF
FEFF
FF00
FDFF
005F
0060
007F
0080
00FF
0100
01FF
0200
02FF
0300
03FF
0400
04FF
0500
07FF
0800
6FFF
7000
7FFF
8000
FFFF
0FFF
1000
7FFF
Reserved
Illegal
17C0
17FF
1800
17BF
Addresses 0040h0043h in program memory are reserved for code security passwords.
When CNF = 1, addresses FE00hFEFFh and FF00hFFFFh 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 FE00hFEFFh are referred to as reserved.
§When CNF = 0, addresses 0100h01FFh and 0200h02FFh 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 0100h01FFh are referred to as reserved.
Addresses 0300h03FFh and 0400h04FFh 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 0400h04FFh are referred to as reserved.
Figure 8. TMS320LC2402A Memory Map