kfm2g16q2a-deb8 Samsung Semiconductor, Inc., kfm2g16q2a-deb8 Datasheet - Page 82
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kfm2g16q2a-deb8
Manufacturer Part Number
kfm2g16q2a-deb8
Description
2gb Muxonenand A-die
Manufacturer
Samsung Semiconductor, Inc.
Datasheet
1.KFM2G16Q2A-DEB8.pdf
(173 pages)
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3.0 DEVICE OPERATION
This section of the datasheet discusses the operation of the MuxOneNAND device. It is followed by AC/DC
Characteristics and Timing Diagrams which may be consulted for further information.
The MuxOneNAND supports a limited command-based interface in addition to a register-based interface for performing operations on the
device.
3.1 Command Based Operation
The command-based interface is active in the boot partition. Commands can only be written with a boot area address. Boot area data is only
returned if no command has been issued prior to the read.
The entire address range, except for the boot area, can be used for the data buffer. All commands are written to the boot partition. Writes out-
side the boot partition are treated as normal writes to the buffers or registers.
The command consists of one or more cycles depending on the command. After completion of the command the device starts its execution.
Writing incorrect information including address and data to the boot partition or writing an improper command will terminate the previous com-
mand sequence and make the device enter the ready status.
The defined valid command sequences are stated in Command Sequences Table.
Command based operations are mainly used when MuxOneNAND is used as Booting device, and all command based operations only sup-
ports asynchronous reads and writes. With DDP, command based operation except reset is applicable only on chip1.
Command Sequences
NOTE :
1) BP(Boot Partition) : BootRAM Area [0000h ~ 01FFh, 8000h ~ 800Fh]. (Chip 1 only in case of DDP)
2) Load Data into Buffer operation is available within a block(128KB) (Chip1 only in case of DDP)
3) Load 2KB unit into DataRAM0. Current Start address(FPA) is automatically incremented by 2KB unit after the load.
4) 0000h -> Data is Manufacturer ID (Chip1 only in case of DDP)
5) WE toggling can terminate ‘Read Identification Data’ operation.
MuxOneNAND2G(KFM2G16Q2A-DEBx)
MuxOneNAND4G(KFN4G16Q2A-DEBx)
0001h -> Data is Device ID (Chip1 only in case of DDP)
0002h -> Current Block Write Protection Status (Chip1 only in case of DDP)
Read Identification Data
Load Data into Buffer
Reset MuxOneNAND
Command Definition
2)
5)
Data
Data
Data
Add
Add
Add
- 82 -
Cycles
1
2
2
1st cycle
00F0h
00E0h
0090h
BP
BP
BP
1)
FLASH MEMORY
2nd cycle
XXXXh
0000h
Data
BP
3)
4)
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