Samsung S3C8275X User Manual
Page 286
S3F8275X
EMBEDDED FLASH MEMORY INTERFACE
16-3
Flash Memory User Programming Enable Register
The FMUSR register is used for a safety operation of the flash memory. This register will protect undesired erase
or program operation from malfunctioning of CPU caused by an electrical noise. After reset, the user-programming
mode is disabled, because the value of FMUSR is "00000000B" by reset operation. If necessary to operate the
flash memory, you can use the user programming mode by setting the value of FMUSR to "10100101B". The
other value of "10100101b", user program mode is disabled.
Flash Memory User Programming Enable Register (FMUSR)
F1H, Set 1, Bank 1, R/W
.7
.6
.5
.4
.3
.2
.1
.0
MSB
LSB
Flash memory user programming enable bits:
10100101: Enable user programming mode
Other values: Disable user programming mode
Figure 16-2. Flash Memory User Programming Enable Register (FMUSR)