Samsung S3F401F - Manual (Page 79)

S3F401F_UM_REV1.00 INTERNAL FLASH ROM
5-19
Protection Option Bits Read Register FPO (0x014) Access: Read Only
31 30 29 28 27 26 25 24
FPODAT [31:24]
R-U R-U R-U R-U R-1 R-U R-U R-U
23 22 21 20 19 18 17 16
FPODAT [23:16]
R-U R-U R-U R-U R-U R-U R-1 R-U
15 14 13 12 11 10 9 8
FPODAT [15:8]
R-U R-U R-U R-U R-U R-U R-U R-1
7 6 5 4 3 2 1 0
FPODAT [7:0]
R-U R-U R-U R-U R-U R-U R-U R-U
W: Write R: Read -0: 0 After reset -1: 1 After reset -U: Undefined after reset
Smart Option
Protection Option bits read register data
0bXXXX_1XXX_(bit27:RDP)
XXXX_XX1X_(bit17:HDP)
XXXX_XXX1_(bit8:LDCP)
FPODAT
XXXX_ XXXX (at Fabrication)
NOTE Reading the Protection Option Bits (LDCP(bit[8])/HDP(bit[17])/RDP(bit[27]) which are port of Flash
Memory) is possible only through the register FPO, because the bits of protection option cannot be read
like normal cell.