参数资料
型号: MSP430F2234IRHA
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC40
封装: GREEN, PLASTIC, QFN-40
文件页数: 10/94页
文件大小: 1583K
代理商: MSP430F2234IRHA
MSP430F22x2
MSP430F22x4
SLAS504E
– JULY 2006 – REVISED MARCH 2011
Memory Organization
Table 12. Memory Organization
MSP430F223x
MSP430F225x
MSP430F227x
Memory
Size
8KB Flash
16KB Flash
32KB Flash
Main: interrupt vector
Flash
0FFFFh-0FFC0h
Main: code memory
Flash
0FFFFh-0E000h
0FFFFh-0C000h
0FFFFh-08000h
Size
256 Byte
Information memory
Flash
010FFh-01000h
Size
1KB
Boot memory
ROM
0FFFh-0C00h
512 Byte
1KB
RAM
Size
03FFh-0200h
05FFh-0200h
16-bit
01FFh-0100h
Peripherals
8-bit
0FFh-010h
8-bit SFR
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 MSP430 Programming Via the Bootstrap
Loader User
’s Guide, literature number SLAU319.
Table 13. BSL Function Pins
BSL FUNCTION
DA PACKAGE PINS
RHA PACKAGE PINS
YFF PACKAGE PINS
Data transmit
32 - P1.1
30 - P1.1
G3 - P1.1
Data receive
10 - P2.2
8 - P2.2
A5 - 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.
18
Copyright
2006–2011, Texas Instruments Incorporated
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