Datasheet

Table Of Contents
MSP430F42x0
MIXED SIGNAL MICROCONTROLLER
SLAS455D − MARCH 2005 − REVISED APRIL 2007
12
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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:
D Flash memory has n segments of main memory and two segments of information memory (A and B) of 128
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 and B can be erased individually, or as a group with segments 0−n.
Segments A and B are also called information memory.
D New devices may have some bytes programmed in the information memory (needed for test during
manufacturing). The user should perform an erase of the information memory prior to the first use.
Segment 0
w/ Interrupt Vectors
Segment 1
Segment 2
Segment n-1
Segment n
Segment A
Segment B
Main
Memory
Information
Memory
32KB
0FFFFh
0FE00h
0FDFFh
0FC00h
0FBFFh
0FA00h
0F9FFh
08400h
083FFh
08200h
081FFh
08000h
010FFh
01080h
0107Fh
01000h
24KB
0FFFFh
0FE00h
0FDFFh
0FC00h
0FBFFh
0FA00h
0F9FFh
0A400h
0A3FFh
0A200h
0A1FFh
0A000h
010FFh
01080h
0107Fh
01000h
16KB
0FFFFh
0FE00h
0FDFFh
0FC00h
0FBFFh
0FA00h
0F9FFh
0C400h
0C3FFh
0C200h
0C1FFh
0C000h
010FFh
01080h
0107Fh
01000h