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S3F8275X EMBEDDED FLASH MEMORY INTERFACE
16-7
SECTOR ERASE
User can erase a flash memory partially by using sector erase function only in User Program Mode. The only unit
of flash memory to be erased and programmed in User Program Mode is called sector.
The program memory of S3F8275X is divided into 128 sectors for unit of erase and programming. Every sector
has all 128-byte sizes of program memory areas. So each sector should be erased first to program a new data
(byte) into a sector. Minimum 10ms delay time for erase is required after setting sector address and triggering
erase start bit (FMCON.0). Sector Erase is not supported in Tool Program Modes (MDS mode tool or
Programming tool).
0000H
Sector 11 (128 Byte)
04FFH
0500H
Sector 127 (128 Byte)
3F7FH
Sector 126 (128 Byte)
Sector 63 (128 Byte)
Sector 10 (128 Byte)
Sector 0-9
(128 byte x 10)
057FH
05FFH
1F7FH
1FFFH
3EFFH
3FFFH
S3F8275X
Figure 16-6. Sector Configurations in User Program Mode