Samsung S3F80JB manual Sector Erase, Sector Configurations in User Program Mode

Models: S3F80JB

1 346
Download 346 pages 34.13 Kb
Page 287
Image 287

EMBEDDED FLASH MEMORY INTERFACE

S3F80JB

 

 

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 in the user program mode is a sector.

The program memory of S3F80JB, 64Kbytes flash memory, is divided into 512 sectors. Every sector has all 128- byte sizes. So the sector to be located destination address should be erased first to program a new data (one byte) into flash memory. Minimum 10ms’ delay time for the 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).

Sector 511 (128 byte)

Sector 510 (128 byte)

Sector 127 (128 byte)

Sector 11 (128 byte)

Sector 10 (128 byte)

Sector 0-9

(128 byte x 10)

FFFFH

FF7FH

FEFFH

3FFFH

3F7FH

05FFH

057FH

0500H

04FFH

0000H

Figure 15-7. Sector Configurations in User Program Mode

15-8

Page 287
Image 287
Samsung S3F80JB manual Sector Erase, Sector Configurations in User Program Mode