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MSP430G2121IRSA16R Datasheet(PDF) 11 Page - Texas Instruments |
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MSP430G2121IRSA16R Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 55 page  MSP430G2x31 MSP430G2x21 www.ti.com SLAS694H – FEBRUARY 2010 – REVISED AUGUST 2011 Memory Organization Table 8. Memory Organization MSP430G2021 MSP430G2121 MSP430G2221 MSP430G2031 MSP430G2131 MSP430G2231 Memory Size 512B 1kB 2kB Main: interrupt vector Flash 0xFFFF to 0xFFC0 0xFFFF to 0xFFC0 0xFFFF to 0xFFC0 Main: code memory Flash 0xFFFF to 0xFE00 0xFFFF to 0xFC00 0xFFFF to 0xF800 Information memory Size 256 Byte 256 Byte 256 Byte Flash 010FFh to 01000h 010FFh to 01000h 010FFh to 01000h RAM Size 128B 128B 128B 027Fh to 0200h 027Fh to 0200h 027Fh to 0200h Peripherals 16-bit 01FFh to 0100h 01FFh to 0100h 01FFh to 0100h 8-bit 0FFh to 010h 0FFh to 010h 0FFh to 010h 8-bit SFR 0Fh to 00h 0Fh to 00h 0Fh to 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 © 2010–2011, Texas Instruments Incorporated 11 |
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