Texas Instruments MSP430x1xx - Manual (Page 416)

Flash Memory Organization
C-4
Figure C–3.Flash Memory Module Example
FFFFh
Flash Memory
F000h
010FFh
01000h
4Kbyte + 256Byte
ONE module
4-kbyte
Flash
Memory
256-Byte
Flash Memory
A module has several segments. The information memory has two segments
of 128 bytes each. In the example in Figure C–4, the 4-kB module has eight
segments of 512 bytes (Segment0 to Segment7), and two 128-byte segments
(SegmentA and SegmentB). Segment0 to Segment7 can be erased
individually or as a group. SegmentA and SegmentB can be erased
individually or as a group with segments 0 to 7.
The segment structure is described in the device’s data sheet. The information
memory can be located directly below the main memory’s address, or at a
different address but will be in the same module.
Note:
Flash memory modules may have different numbers of segments. Segment
are numbered from 0 up to n, e.g., segment 0 to segment n.