Datasheet

MSP430FW42x

www.ti.com

SLAS383D –OCTOBER 2003–REVISED JANUARY 2011

Memory Organization

Table 6. Memory Organization

MSP430FW423 MSP430FW425 MSP430FW427 MSP430FW428 MSP430FW429

Memory Size 8KB 16KB 32KB 48KB 60KB

Interrupt vector Flash 0FFFFh - 0FFE0h 0FFFFh - 0FFE0h 0FFFFh - 0FFE0h 0FFFFh - 0FFE0h 0FFFFh - 0FFE0h

Code memory Flash 0FFFFh - 0E000h 0FFFFh - 0C000h 0FFFFh - 08000h 0FFFFh - 04000h 0FFFFh - 01100h

Information Size 256 Byte 256 Byte 256 Byte 256 Byte 256 Byte

memory

010FFh - 01000h 010FFh - 01000h 010FFh - 01000h 010FFh - 01000h 010FFh - 01000h

Boot memory Size 1KB 1KB 1KB 1KB 1KB

0FFFh - 0C00h 0FFFh - 0C00h 0FFFh - 0C00h 0FFFh - 0C00h 0FFFh - 0C00h

RAM Size 256 Byte 512 Byte 1KB 2KB 2KB

02FFh - 0200h 03FFh - 0200h 05FFh - 0200h 09FFh - 0200h 09FFh - 0200h

Peripherals 16-bit 01FFh - 0100h 01FFh - 0100h 01FFh - 0100h 01FFh - 0100h 01FFh - 0100h

8-bit 0FFh - 010h 0FFh - 010h 0FFh - 010h 0FFh - 010h 0FFh - 010h

8-bit 0Fh - 00h 0Fh - 00h 0Fh - 00h 0Fh - 00h 0Fh - 00h

SFR

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 MSP430 Programming Via the Bootstrap

Loader User's Guide (SLAU319).

BSL FUNCTION PM PACKAGE PINS

Data Transmit 53 - P1.0

Data Receiver 52 - P1.1