OneNAND512Mb(KFG1216U2B-xIB6)
FLASH MEMORY
2.7.3 External Memory (BufferRAM) Address Map
The following table shows the External Memory address map in Word and Byte Order.
Note that the data output is unknown while host reads a register bit of reserved area.
Address
(word order)
Address
(byte order)
Size
(total 128KB)
Division
Usage
Description
Main area
(64KB)
0000h~00FFh 00000h~001FEh
0100h~01FFh 00200h~003FEh
0200h~02FFh 00400h~005FEh
0300h~03FFh 00600h~007FEh
0400h~04FFh 00800h~009FEh
0500h~05FFh 00A00h~00BFEh
0600h~06FFh 00C00h~00DFEh
0700h~07FFh 00E00h~00FFEh
0800h~08FFh 01000h~011FEh
0900h~09FFh 01200h~013FEh
0A00h~7FFFh 01400h~0FFFEh
512B
512B
512B
512B
512B
512B
512B
512B
512B
512B
59K
BootM 0
BootM 1
BootRAM Main sector0
BootRAM Main sector1
1KB
4KB
R
DataM 0_0
DataM 0_1
DataM 0_2
DataM 0_3
DataM 1_0
DataM 1_1
DataM 1_2
DataM 1_3
Reserved
BootS 0
DataRAM Main page0/sector0
DataRAM Main page0/sector1
DataRAM Main page0/sector2
DataRAM Main page0/sector3
DataRAM Main page1/sector0
DataRAM Main page1/sector1
DataRAM Main page1/sector2
DataRAM Main page1/sector3
Reserved
R/W
59K
32B
-
Spare area 8000h~8007h 10000h~1000Eh
(8KB)
16B
BootRAM Spare sector0
R
8008h~800Fh 10010h~1001Eh
16B
BootS 1
BootRAM Spare sector1
8010h~8017h 10020h~1002Eh
8018h~801Fh 10030h~1003Eh
8020h~8027h 10040h~1004Eh
8028h~802Fh 10050h~1005Eh
8030h~8037h 10060h~1006Eh
8038h~803Fh 10070h~1007Eh
8040h~8047h 10080h~1008Eh
8048h~804Fh 10090h~1009Eh
16B
DataS 0_0
DataS 0_1
DataS 0_2
DataS 0_3
DataS 1_0
DataS 1_1
DataS 1_2
DataS 1_3
Reserved
DataRAM Spare page0/sector0
DataRAM Spare page0/sector1
DataRAM Spare page0/sector2
DataRAM Spare page0/sector3
DataRAM Spare page1/sector0
DataRAM Spare page1/sector1
DataRAM Spare page1/sector2
DataRAM Spare page1/sector3
Reserved
16B
16B
16B
128B
R/W
16B
16B
16B
16B
8050h~8FFFh 100A0h~11FFEh 8032B
8032B
24KB
-
-
Reserved
(24KB)
9000h~BFFFh 12000h~17FFEh
C000h~CFFFh 18000h~19FFEh
24KB
8KB
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Registers
Reserved
(8KB)
8KB
16KB
8KB
-
-
Reserved
(16KB)
D000h~EFFFh 1A000h~1DFFEh 16KB
F000h~FFFFh 1E000h~1FFFEh 8KB
Registers
(8KB)
R or R/W Registers
25
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