TMS320F241FN datasheet(11/66 Pages) TI

11 / 66 page

TMS320C242

DSP CONTROLLER

SPRS063B – DECEMBER 1997 – REVISED DECEMBER 1999

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

memory map

User Code in ROM

Reserved

Illegal

0000

Interrupt Vectors

003F

0040

Hex

Program

0FBF

0FC0

0000

005F

0060

01FF

02FF

0300

0200

03FF

0400

7000

Peripheral Memory-

Mapped Registers

(System,WD, ADC,

SCI, I/O,

Interrupts)

73FF

7400

743F

7440

Data

Hex

007F

0080

8000

Illegal

FFFF

7FFF

Memory-Mapped

Registers/Reserved

Addresses

On-Chip

DARAM B2

On-Chip DARAM

(B0)‡ (CNF = 0)

Reserved (CNF = 1)

On-Chip

DARAM (B1)§

6FFF

Peripheral

Memory-Mapped

Registers

(Event Manager)

Illegal

FDFF

FE00

On-Chip DARAM

B0† (CNF = 1)

Reserved (CNF = 0)

Reserved†

FEFF

FF00

FFFF

On-Chip ROM, (4K)

Illegal

7800

77FF

Reserved

0FFF

1000

Reserved

† 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 will have 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 will have 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 illegal.

NOTE A: There is no external memory space for program, data, global data, or I/O in the ’C242. The GREG register is reserved in the ’C242.

Figure 1. TMS320C242 Memory Map

TMS320F241FN Datasheet(PDF) 11 Page - Texas Instruments

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