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MSP430F247TRGC Datasheet

  • MSP430F247TRGC

  • Texas Instruments [MIXED SIGNAL MICROCONTROLLER]

  • TI

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MSP430x23x, MSP430x24x(1), MSP430x2410
MIXED SIGNAL MICROCONTROLLER
SLAS547A -- JUNE 2007 -- REVISED NOVEMBER 2007
flash memory
The flash memory can be programmed via the JTAG port, the BSL, 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:
D
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.
D
Segments 0 to n may be erased in one step, or each segment may be individually erased.
D
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.
D
Segment A contains calibration data. After reset segment A is protected against programming or erasing.
It can be unlocked but care should be taken not to erase this segment if the calibration data is required.
D
Flash content integrity check with marginal read modes.
peripherals
Peripherals are connected to the CPU through data, address, and control busses and can be handled using
all instructions. For complete module descriptions, see the
MSP430x2xx Family User鈥檚 Guide,
literature number
SLAU144.
oscillator and system clock
The clock system in the MSP430x23x, MSP43x24x(1), and MSP430F2410 family of devices is supported by
the basic clock module that includes support for a 32768-Hz watch crystal oscillator, an internal very-low-power,
low-frequency oscillator, an internal digitally-controlled oscillator (DCO), and a high-frequency crystal oscillator.
The basic clock module is designed to meet the requirements of both low system cost and low power
consumption. The internal DCO provides a fast turn-on clock source and stabilizes in less than 1
渭s.
The basic
clock module provides the following clock signals:
D
Auxiliary clock (ACLK), sourced from a 32768-Hz watch crystal, a high frequency crystal, or a very low
D
D
power LF oscillator
Main clock (MCLK), the system clock used by the CPU
Sub-Main clock (SMCLK), the sub-system clock used by the peripheral modules
POST OFFICE BOX 655303
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DALLAS, TEXAS 75265
21

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