Samsung FLEX-MUXONENAND KFKAGH6Q4M Specifications page 13

Flex-MuxOneNAND4G(KFM4GH6Q4M-DEBx)
Flex-MuxOneNAND8G(KFN8GH6Q4M-DEBx)
Flex-MuxOneNAND16G(KFKAGH6Q4M-DEBx)
2.6.2 External (BufferRAM) Memory Organization
The on-chip external memory is comprised of 3 buffers used for Boot Code storage and data buffering.
The BootRAM is a buffer that receives Boot Code from the internal memory and makes it available to the host at start up.
There are 4KB bi-directional data buffers(2KB x2), DataRAM0 and DataRAM1. During Boot Up, the BootRam is used by the host to initialize
the main memory, and deliver boot code from NAND Flash core to host.
Host
The external memory is divided into a main area and a spare area. Each buffer is the equivalent size of a Sector.
The main area data is 512B. The spare area data is 16B.
External Memory Array Information
Area
Total Size
Number of Sectors
Main
Sector
Spare
External Memory Array Organization
BootRAM
DataRAM0
DataRAM1
External (BufferRAM)
Memory
BootRAM (1KB)
DataRAM0 (2KB)
DataRAM1 (2KB)
BootRAM
1KB+32B
2
512B
16B
Spare area data
Main area data
(512B)
BootRAM 0
BootRAM 1
DataRAM 0_0
DataRAM 0_1
DataRAM 0_2
DataRAM 0_3
DataRAM 1_0
DataRAM 1_1
DataRAM 1_2
DataRAM 1_3
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Internal (Nand Array)
Memory
Boot code
Nand Array
OTP Block
DataRAM0
2KB+64B
4
512B
16B
(16B)
Sector: (512 + 16) Byte
4KByte
FLASH MEMORY
DataRAM1
2KB+64B
4
512B
16B