MSP430F2274-EP_14 Datasheet, PDF (10/81 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2274-EP
SLAS614D – SEPTEMBER 2008 – REVISED MAY 2011
Legend:
rw:
rw-0, 1:
rw-(0), (1):
Bit can be read and written.
Bit can be read and written. It is Reset or Set by PUC.
Bit can be read and written. It is Reset or Set by POR.
SFR bit is not present in device.
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Memory Organization
Memory
Main: interrupt vector
Main: code memory
Information memory
Boot memory
RAM
Peripherals
Size
Flash
Flash
Size
Flash
Size
ROM
Size
16-bit
8-bit
8-bit SFR
MSP430F223x
8KB Flash
0FFFFh–0FFC0h
0FFFFh–0E000h
256 Byte
010FFh–01000h
1KB
0FFFh–0C00h
512 Byte
03FFh–0200h
01FFh–0100h
0FFh–010h
0Fh–00h
MSP430F225x
16KB Flash
0FFFFh–0FFC0h
0FFFFh–0C000h
256 Byte
010FFh–01000h
1KB
0FFFh–0C00h
512 Byte
03FFh–0200h
01FFh–0100h
0FFh–010h
0Fh–00h
MSP430F227x
32KB Flash
0FFFFh–0FFC0h
0FFFFh–08000h
256 Byte
010FFh–01000h
1KB
0FFFh–0C00h
1KB
05FFh–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, TI literature number SLAA089.
BSL Function
Data Transmit
Data Receive
DA Package Pins
32 - P1.1
10 - P2.2
RHA Package Pins
30 – P1.1
8 – P2.2
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–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.
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