Samsung KFM2G16Q2A, KFN4G16Q2A warranty Start Buffer Register F200h R/W, Bsa, Bsc

MuxOneNAND2G(KFM2G16Q2A-DEBx)	FLASH MEMORY
MuxOneNAND4G(KFN4G16Q2A-DEBx)

2.8.17 Start Buffer Register F200h (R/W)

This Read/Write register describes the BufferRAM Sector Count (BSC) and BufferRAM Sector Address (BSA).

The BufferRAM Sector Count (BSC) field specifies the number of sectors to be loaded, programmed, or copy back programmed. At 00 value (the default value), the number of sector is "4". If the internal RAM buffer reaches its maximum value of 11, it will count up to 0 value to meet the BSC value. For example, if BSA = 1101, BSC = 00, then the selected BufferRAM will count up from '1101 → 1110 → 1111 → 1100'.

The BufferRAM Sector Address (BSA) is the sector 0~3 address in the internal BootRAM and DataRAM where data is placed.

F200h, default = 0000h

15	14	13	12	11	10		9	8	7	6		5	4	3	2	1		0
	Reserved(0000)					BSA					Reserved(000000)						BSC

NOTE :

In case of ’Cache Read’, BSA has to be set to 1000 or 1100. And BSC has to be set to 00.

In case of ’Synchronous Burst Block Read’, BSA has to be set to 1000 . And BSC has to be set to 00.

In case of ’2X Program’ or ’2X Cache Program’, BSA has to be set to 1000. And BSC has to be set to 00.

Start Address8 Information

Item	Description
BSA[3]	Selection bit between BootRAM and DataRAM
BSA[2]	Selection bit between DataRAM0 and DataRAM1
BSA[1:0]	Selection bit between Sector0 and Sector1 in the internal BootRAM
	Selection bit between Sector0 to Sector3 in the internal DataRAM

Main area data	Spare area data
512B	16B

{{ BSA

BootRAM

DataRAM0

DataRAM1

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

0000 Sector: (512 + 16) Byte 0001

1000

1001

1010 1011

1100

1101 1110

1111

BSC

01

10

11

00

Number of Sectors

1sector

2sector

3sector

4sector

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