OneNAND512Mb(KFG1216U2B-xIB6)
FLASH MEMORY
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 1KB buffer that receives Boot Code from the internal memory and makes it available to the host at start up.
There are two independent 2KB bi-directional data buffers, DataRAM0 and DataRAM1. These dual buffers enable the host to execute
simultaneous Read-While load, and Write-While-program operations after Boot Up. 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.
Internal (Nand Array)
Memory
External (BufferRAM)
Memory
Boot code (1KB)
BootRAM (1KB)
Nand Array
Host
DataRAM0 (2KB)
DataRAM1 (2KB)
OTP Block
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
BootRAM
1KB+32B
2
DataRAM0
2KB+64B
4
DataRAM1
2KB+64B
4
Total Size
Number of Sectors
Main
Spare
512B
512B
512B
Sector
16B
16B
16B
14
SAMSUNG [ SAMSUNG ]
