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Flex-MuxOneNAND4G(KFM4GH6Q4M-DEBx)
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FLASH MEMORY
Flex-MuxOneNAND8G(KFN8GH6Q4M-DEBx)
Flex-MuxOneNAND16G(KFKAGH6Q4M-DEBx)
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 and dual buffering is not applicable.
Division
Address
(word order)
Address
(byte order)
Size
(total 128KB)
Usage Description
Main area
(64KB)
0000h~00FFh 00000h~001FEh 512B
1KB R
BootM 0 BootRAM, Main, block0/page0/sector0
0100h~01FFh 00200h~003FEh 512B BootM 1 BootRAM, Main, block0/page0/sector1
0200h~02FFh 00400h~005FEh 512B
4KB R/W
DataM 0_0 DataRAM, Main, nth page/sector0
0300h~03FFh 00600h~007FEh 512B DataM 0_1 DataRAM, Main, nth page/sector1
0400h~04FFh 00800h~009FEh 512B DataM 0_2 DataRAM, Main, nth page/sector2
0500h~05FFh 00A00h~00BFEh 512B DataM 0_3 DataRAM, Main, nth page/sector3
0600h~06FFh 00C00h~00DFEh 512B DataM 1_0 DataRAM, Main, nth page/sector4
0700h~07FFh 00E00h~00FFEh 512B DataM 1_1 DataRAM, Main, nth page/sector5
0800h~08FFh 01000h~011FEh 512B DataM 1_2 DataRAM, Main, nth page/sector6
0900h~09FFh 01200h~013FEh 512B DataM 1_3 DataRAM, Main, nth page/sector7
0A00h~7FFFh 01400h~0FFFEh 59K 59K - Reserved Reserved
Spare area
(8KB)
8000h~8007h 10000h~1000Eh 16B
32B R
BootS 0 BootRAM, Spare, block0/page0/sector0
8008h~800Fh 10010h~1001Eh 16B BootS 1 BootRAM, Spare, block0/page0/sector1
8010h~8017h 10020h~1002Eh 16B
128B R/W
DataS 0_0 DataRAM, Spare, nth page/sector0
8018h~801Fh 10030h~1003Eh 16B DataS 0_1 DataRAM, Spare, nth page/sector1
8020h~8027h 10040h~1004Eh 16B DataS 0_2 DataRAM, Spare, nth page/sector2
8028h~802Fh 10050h~1005Eh 16B DataS 0_3 DataRAM, Spare, nth page/sector3
8030h~8037h 10060h~1006Eh 16B DataS 1_0 DataRAM, Spare, nth page/sector4
8038h~803Fh 10070h~1007Eh 16B DataS 1_1 DataRAM, Spare, nth page/sector5
8040h~8047h 10080h~1008Eh 16B DataS 1_2 DataRAM, Spare, nth page/sector6
8048h~804Fh 10090h~1009Eh 16B DataS 1_3 DataRAM, Spare, nth page/sector7
8050h~8FFFh 100A0h~11FFEh 8032B 8032B - Reserved Reserved
Reserved
(24KB)
9000h~BFFFh 12000h~17FFEh 24KB 24KB - Reserved Reserved
Reserved
(8KB)
C000h~CFFFh 18000h~19FFEh 8KB 8KB - Reserved Reserved
Reserved
(16KB)
D000h~EFFFh 1A000h~1DFFEh 16KB 16KB - Reserved Reserved
Registers
(8KB)
F000h~FFFFh 1E000h~1FFFEh 8KB 8KB
R or
R/W
Registers Registers