MSP430X47X3_07 Datasheet, PDF (13/76 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

memory organization
Memory
Main: interrupt vector
Main: code memory
Information memory
Boot memory
RAM
Size
Flash
Flash
Size
Flash
Size
ROM
Size
Peripherals
16-bit
8-bit
8-bit SFR
MSP430x47x3, MSP430x47x4
MIXED SIGNAL MICROCONTROLLER
SLAS545A − MAY 2007 − REVISED DECEMBER 2007
MSP430F4783/MSP430F4784
48KB
0FFFFh − 0FFE0h
0FFFFh − 04000h
256 Byte
010FFh − 01000h
1KB
0FFFh − 0C00h
2KB
09FFh − 0200h
01FFh − 0100h
0FFh − 010h
0Fh − 00h
MSP430F4793/MSP430F4794
60KB
0FFFFh − 0FFE0h
0FFFFh − 01100h
256 Byte
010FFh − 01000h
1KB
0FFFh − 0C00h
2.5KB
0BFFh − 0200h
01FFh − 0100h
0FFh − 010h
0Fh − 00h
bootstrap loader (BSL)
The MSP430 bootstrap loader (BSL) enables users to program the flash memory or RAM using a UART serial
interface. Access to the MSP430 memory via the BSL is protected by user-defined password. For complete
description of the features of the BSL and its implementation, see the Application report Features of the MSP430
Bootstrap Loader, Literature Number SLAA089.
BSL Function
Data Transmit
Data Receive
PZ Package Pins
87 - P1.0
86 - P1.1
flash memory, Flash
The flash memory can be programmed via the JTAG port, the bootstrap loader, or in-system by the CPU. The
CPU can perform single-byte and single-word writes to the flash memory. Features of the flash memory include:
D Flash memory has n segments of main memory and four segments of information memory (A to D) of 64
bytes each. Each segment in main memory is 512 bytes in size.
D Segments 0 to n may be erased in one step, or each segment may be individually erased.
D Segments A to D can be erased individually, or as a group with segments 0−n.
Segments A to D are also called information memory.
D Segment A might contain calibration data. After reset segment A is protected against programming or
erasing. It can be unlocked but care should be taken not to erase this segment if the calibration data is
required.
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