Datasheet

MSP430F23x0

SLAS518E –AUGUST 2006– REVISED AUGUST 2011

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Memory Organization

Table 11. Memory Organization

MSP430F2330 MSP430F2350 MSP430F2370

Memory Size 8KB Flash 16KB Flash 32KB

Main: interrupt vector Flash 0xFFFF - 0xFFC0 0xFFFF - 0xFFC0 0xFFFF - 0xFFC0

Main: code memory Flash 0xFFFF - 0xE000 0xFFFF - 0xC000 0xFFFF - 0x8000

Information memory Size 256 Byte 256 Byte 256 Byte

Flash 0x10FF - 0x1000 0x10FF - 0x1000 0x10FF - 0x1000

Boot memory Size 1KB 1KB 1KB

ROM 0x0FFF - 0x0C00 0x0FFF - 0x0C00 0x0FFF - 0x0C00

RAM Size 1KB 2KB 2KB

0x5FF - 0x0200 0x9FF - 0x0200 0x09FF - 0x0200

Peripherals 16–bit 0x01FF - 0x0100 0x01FF - 0x0100 0x01FF - 0x0100

8–bit 0x00FF - 0x0010 0x00FF - 0x0010 0x00FF - 0x0010

8–bit SFR 0x000F - 0x0000 0x000F - 0x0000 0x000F - 0x0000

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, literature number SLAU319.

Table 12. BSL Function Pins

BSL FUNCTION YFF PACKAGE PINS RHA PACKAGE PINS

Data transmit C4 - P1.1 5 - P1.1

Data receive C6 - P2.2 14 - P2.2

Flash Memory

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:

• 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.

• Segments 0 to n may be erased in one step, or each segment may be individually erased.

• Segments A to D can be erased individually, or as a group with segments 0 to n.

Segments A to D are also called information memory.

• Segment A contains calibration data. After reset, segment A is protected against programming and erasing. It

can be unlocked, but care should be taken not to erase this segment if the device-specific calibration data is

required.