OneNAND512Mb(KFG1216U2B-xIB6)
FLASH MEMORY
2.8.23 Start Block Address Register F24Ch (R/W)
This Read/Write register shows the NAND Flash block address in the Write Protection mode. Setting this register precedes a 'Lock
Block' command, 'Unlock Block' command, or ’Lock-Tight' Command.
F24Ch, default = 0000h
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved(000000)
SBA
Device
Number of Block
SBA
512Mb
512
[8:0]
2.8.24 End Block Address Register F24Dh
This register is reserved for future use.
2.8.25 NAND Flash Write Protection Status Register F24Eh (R)
This Read register shows the Write Protection Status of the NAND Flash memory array.
To read the write protection status, FBA has to be set before reading the register.
F24Eh, default = 0002h
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved(0000000000000)
US
LS
LTS
Write Protection Status Information[2:0]
Item
Definition
Description
US
Unlocked Status
1 = current NAND Flash block is unlocked
1 = current NAND Flash block is locked
LS
Locked Status
Or First Block of NAND Flash Array is Locked to be OTP
1 = current NAND Flash block is locked-tight
LTS
Locked-Tight Status
50
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