MSP43020X3 Datasheet, PDF (15/92 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

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Memory Organization
MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491H – AUGUST 2005 – REVISED AUGUST 2011
Memory
Main: interrupt vector
Main: code memory
Information memory
RAM
Peripherals
Table 10. Memory Organization
Size
Flash
Flash
Size
Flash
Size
16-bit
8-bit
8-bit SFR
MSP430F200x
1KB Flash
0FFFFh-0FFC0h
0FFFFh-0FC00h
256 Byte
010FFh - 01000h
128 Byte
027Fh - 0200h
01FFh - 0100h
0FFh - 010h
0Fh - 00h
MSP430F201x
2KB Flash
0FFFFh-0FFC0h
0FFFFh-0F800h
256 Byte
010FFh - 01000h
128 Byte
027Fh - 0200h
01FFh - 0100h
0FFh - 010h
0Fh - 00h
Flash Memory
The flash memory can be programmed via the Spy-Bi-Wire/JTAG port, 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.
Copyright © 2005–2011, Texas Instruments Incorporated
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