
SPRS145G
–
JULY 2000
–
REVISED FEBRUARY 2002
24
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
–
1443
memory maps
Wait-State Generator Control
Register (On-Chip)
On-Chip DARAM (B0)
§
(CNF = 0)
Reserved (CNF = 1)
On-Chip DARAM (B1)
0800
éééééééééé
éééééééééé
Peripheral Memory-Mapped
Registers (System, WD, ADC,
SCI, SPI, CAN, I/O, Interrupts)
7FFF
8000
éééééééééé
8800
Reserved
0000
Hex
Program
On-Chip Flash Memory (Sectored)
–
if MP/MC = 0
External Program Memory
–
if MP/MC = 1
7FFF
8000
0000
0060
007F
0100
Hex
Data
Memory-Mapped
Registers/Reserved Addresses
On-Chip DARAM B2
01FF
0200
Illegal
02FF
0300
03FF
0400
04FF
0500
SARAM (2K)
Internal (DON = 1)
07FF
Reserved
6FFF
7000
External
0000
Hex
I/O
FEFF
FF00
FF0E
FF0F
Reserved
External
FFFF
FEFF
FF00
FDFF
FE00
External
On-Chip DARAM (B0)
(CNF = 1)
External (CNF = 0)
FFFF
FFFE
FF10
Flash Control Mode Register
SARAM
(See Table 1 for details.)
FFFF
SARAM (2K)
87FF
0FFF
1000
3FFF
4000
Flash Sector 1 (12K)
Flash Sector 2 (12K)
Flash Sector 3 (4K)
6FFF
7000
0FFF
1000
ééé
ééé
èèè
Reserved or Illegal
Flash Sector 0 (4K)
Interrupt Vectors (0000–003Fh)
Reserved (0040–0043h)
User code begins at 0044h
Reserved
(CNF = 1)
External (CNF = 0)
Reserved
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 on-chip 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 = 1.
§
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 1. TMS320LF2407A Memory Map