k9f5608u0d-p Samsung Semiconductor, Inc., k9f5608u0d-p Datasheet - Page 18
k9f5608u0d-p
Manufacturer Part Number
k9f5608u0d-p
Description
Flash Memory
Manufacturer
Samsung Semiconductor, Inc.
Datasheet
1.K9F5608U0D-P.pdf
(35 pages)
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Pointer Operation of K9F5608X0D(X8)
Samsung NAND Flash has three address pointer commands as a substitute for the two most significant column addresses. ’00h’
command sets the pointer to ’A’ area(0~255byte), ’01h’ command sets the pointer to ’B’ area(256~511byte), and ’50h’ command sets
the pointer to ’C’ area(512~527byte). With these commands, the starting column address can be set to any of a whole
page(0~527byte). ’00h’ or ’50h’ is sustained until another address pointer command is inputted. ’01h’ command, however, is effective
only for one operation. After any operation of Read, Program, Erase, Reset, Power_Up is executed once with ’01h’ command, the
address pointer returns to ’A’ area by itself. To program data starting from ’A’ or ’C’ area, ’00h’ or ’50h’ command must be inputted
before ’80h’ command is written. A complete read operation prior to ’80h’ command is not necessary. To program data starting from
’B’ area, ’01h’ command must be inputted right before ’80h’ command is written.
Table 2. Destination of the pointer
K9F5608R0D
K9F5608U0D
(1) Command input sequence for programming ’A’ area
(2) Command input sequence for programming ’B’ area
(3) Command input sequence for programming ’C’ area
Command
00h
01h
50h
’A’,’B’,’C’ area can be programmed.
It depends on how many data are inputted.
00h
01h
50h
’B’, ’C’ area can be programmed.
It depends on how many data are inputted.
Only ’C’ area can be programmed.
Pointer position
K9F5608B0D
512 ~ 527 byte
256 ~ 511 byte
The address pointer is set to ’A’ area(0~255), and sustained
The address pointer is set to ’B’ area(256~512), and will be reset to
’A’ area after every program operation is executed.
The address pointer is set to ’C’ area(512~527), and sustained
0 ~ 255 byte
80h
80h
80h
Address / Data input
Address / Data input
Address / Data input
2nd half array(B)
1st half array(A)
spare array(C)
Area
10h
10h
10h
18
Figure 4. Block Diagram of Pointer Operation
’00h’ command can be omitted.
00h
01h
50h
’01h’ command must be rewritten before
every program operation
’50h’ command can be omitted.
Pointer select
commnad
(00h, 01h, 50h)
(00h plane)
"A" area
256 Byte
"A"
80h
80h
80h
Address / Data input
Address / Data input
Address / Data input
(01h plane)
256 Byte
"B" area
Pointer
"B"
FLASH MEMORY
(50h plane)
10h
10h
10h
16 Byte
"C" area
"C"
Page Register
Internal