Datasheet

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SPRS161K − MARCH 2001 − REVISED JULY 2007
20
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
memory map (continued)
Reserved
0000
005F
0060
Hex Data
Memory-Mapped
Registers/Reserved Addresses
007F
0080
On-Chip DARAM B2
01FF
0200
02FF
0300
On-Chip DARAM (B0)
§
(CNF = 0)
Reserved (CNF = 1)
03FF
0400
On-Chip DARAM (B1)
¶
07FF
0800
6FFF
7000
Illegal
Peripheral Memory-Mapped
Registers (System, WD, ADC,
EV, SCI, I/O)
7FFF
8000
Illegal
0000
Hex I/O
FEFF
FF00
Reserved
Reserved
FFFF
FFFE
FF10
FFFF
0FFF
1000
Reserved
Reserved
0000
Program
FFFF
FEFF
FF00
FDFF
FE00
On-Chip DARAM (B0)
‡
(CNF = 1)
Reserved (CNF = 0)
Hex
7FFF
8000
FFFF
FEFF
FF00
FDFF
FE00
Reserved
Reserved
87FF
8800
2000
Reserved
Reserved or Illegal
81FF
8200
SARAM (512 words)
Internal (PON = 1)
Reserved (PON = 0)
SARAM (512 words)
Internal (DON = 1)
Reserved (DON = 0)
09FF
0A00
SARAM (See Table 1 for details.)
0100
00FF
04FF
0500
Reserved
‡
Illegal
Reserved
Reserved
Illegal
1FCO
On-chip ROM
On-chip ROM (8K)
Interrupt Vectors (0000−003Fh)
Reserved† (0040−0043h)
User code begins at 0044h
1FFF
1FBF
Reserved
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 10. TMS320LC2401A Memory Map