MSP430F6779A Datasheet, PDF (74/176 Pages) Texas Instruments – Polyphase Metering SoCs

MSP430F6779A, MSP430F6778A, MSP430F6777A, MSP430F6776A, MSP430F6775A
MSP430F6769A, MSP430F6768A, MSP430F6767A, MSP430F6766A, MSP430F6765A
MSP430F6749A, MSP430F6748A, MSP430F6747A, MSP430F6746A, MSP430F6745A
SLAS982 – MAY 2014
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6.10.2 Flash Memory (Link to User's Guide)
The flash memory can be programmed via the JTAG port, Spy-Bi-Wire (SBW), the BSL, or in-system by
the CPU. The CPU can perform single-byte, single-word, and long-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
128 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 can be locked separately.
6.10.3 RAM Memory (Link to User's Guide)
The RAM memory is made up of n sectors. Each sector can be completely powered down to save
leakage; however, all data is lost in the sector that is powered down. Features of the RAM memory
include:
• RAM memory has n sectors of 4K bytes each.
• Each sector 0 to n can be complete disabled; however, data retention is lost in the disabled sector.
• Each sector 0 to n automatically enters low-power retention mode when possible.
6.10.4 Backup RAM Memory (Link to User's Guide)
The Backup RAM provides a limited number of bytes of RAM that are retained during LPM3.5. This
Backup RAM is part of the Backup subsystem that operates on dedicated power supply AUXVCC3.There
are 8 bytes of Backup RAM available in this device. It can be wordwise accessed via the registers
BAKMEM0, BAKMEM1, BAKMEM2, and BAKMEM3. The Backup RAM registers cannot be accessed by
CPU when the high-side SVS is disabled by the user application.
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Detailed Description
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