Sector Erase; Sector Configurations In User Program Mode - Samsung S3F80JB User Manual

EMBEDDED FLASH MEMORY INTERFACE

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).
15-8
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)
Figure 15-7. Sector Configurations in User Program Mode
FFFFH
FF7FH
FEFFH
3FFFH
3F7FH
05FFH
057FH
0500H
04FFH
0000H
S3F80JB