Samsung KFN4G16Q2A, KFM2G16Q2A warranty Command Register F220h R/W, Acceptable, Cmd, Operation

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

2.8.18 Command Register F220h (R/W)

Command can be issued by two following methods, and user may select one way or the other to issue appropriate command;

1.Write command into Command Register when INT is at ready state. INT will automatically turn to busy state as command is issued. Once the desired operation is completed, INT will go back ready state.

2.Write 0000h to INT bit of Interrupt Status Register, and then write command into Command Register. Once the desired operation is com- pleted, INT will go back to ready state.

(00F0h and 00F3h may be accepted during busy state of some operations. Refer to the rightmost column of the command register table below.)

F220h, default = 0000h

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Command

		Acceptable
CMD	Operation	command
		during busy
0000h	Load single/multiple sector data unit into buffer	00F0h, 00F3h
0013h	Load single/multiple spare sector into buffer	00F0h, 00F3h
0080h	Program single/multiple sector data unit from buffer1)	00F0h, 00F3h
001Ah	Program single/multiple spare data unit from buffer	00F0h, 00F3h
001Bh	Copy back Program operation	00F0h, 00F3h
007Dh	2X Program operation 2)	00F0h, 00F3h
007Fh	2X Cache Program operation 2)	00F0h, 00F3h
0023h	Unlock NAND array a block	00F0h, 00F3h
002Ah	Lock NAND array a block	00F0h, 00F3h
002Ch	Lock-tight NAND array a block	00F0h, 00F3h
0027h	All Block Unlock 3)	00F0h, 00F3h
0071h	Erase Verify Read	00F0h, 00F3h
000Eh	Cache Read	00F0h, 00F3h
000Ch	Finish Cache Read	00F0h, 00F3h
000Ah	Synchronous Burst Block Read	00F0h, 00F3h
0094h	Block Erase	00F0h, 00F3h
0095h	Multi-Block Erase	00F0h, 00F3h
00B0h	Erase Suspend	00F0h, 00F3h
0030h	Erase Resume	00F0h, 00F3h
00F0h	Reset NAND Flash Core	-
00F3h	Reset MuxOneNAND 4)	-
0065h	OTP Access	00F0h, 00F3h

NOTE :

1)0080h programs both main and spare area, while 001Ah programs only spare area. Refer to chapter 5.9 for NOP limits in issuing these commands. When using 0080h and 001Ah command, Read-only part in spare area must be masked by FF. (Refer to chapter 2.7.2)

2)‘2X Program’ is executed by ‘007D’. This command can be used alone and used for ending ‘2X Cache Program’.

’2X Cache Program’ is executed by ‘007F’. This command cannot be used alone and must be ended by ‘007D’ for the last page program of cache program. (Refer to 6.13 and 6.14)

3)If any blocks are changed to locked-tight state, the all block unlock command will fail. In order to use all block unlock command again, a cold reset is needed.

4)‘Reset MuxOneNAND’(=Hot reset) command makes the registers and NAND Flash core into default state.

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