K5P2880YCM Datasheet, PDF (14/29 Pages) Samsung semiconductor – Multi-Chip Package MEMORY 128M Bit 16Mx8 Nand Flash Memory / 8M Bit 1Mx8/512Kx16 Full CMOS SRAM

K5P2880YCM - T085
Pointer Operation of NAND Flash
The Flash memory has three modes to set the destination of the pointer. The pointer is set to "A" area by the "00h" command, to "B"
area by the "01h" command, and to "C" area by the "50h" command. Table 6 shows the destination of the pointer, and figure 15
shows the block diagram of its operations.
Table 6. Destination of the pointer
Command
00h
01h
50h
Pointer position
0 ~ 255 byte
256 ~ 511 byte
512 ~ 527 byte
Area
1st half array(A)
2nd half array(B)
spare array(C)
"A" area
(00h plane)
"B" area
"C" area
(01h plane) (50h plane)
256 Byte
256 Byte
16 Byte
"A"
"B"
"C"
Internal
Page Register
Pointer select
commnad
(00h, 01h, 50h)
Pointer
Figure 15. Block Diagram of Pointer Operation
Example of Programming with successive Pointer Operation
(1) "A" area program
Address / Data input
Address / Data input
50h
00h
80h
"C" area
"A" area
10h
80h
"A" area program
10h
"A" area program
(2) "B" area program
Address / Data input
Address / Data input
00h
01h
80h
"A" area
"B" area
10h
80h
"B" area program
10h
"A" area program
(3) "C" area program
Address / Data input
Address / Data input
00h
50h
80h
"A" area
"C" area
10h
80h
"C" area program
10h
"C" area program
Table 7. Pointer Status after each operation
Operation
Program
Pointer status after operation
With previous 00h, Device is set to 00h Plane
With previous 01h, Device is set to 00h Plane*
With previous 50h, Device is set to 50h Plane
Reset
"00h" Plane("A" area)
Power up
"00h" Plane("A" area)
* 01h command is valid just one time when it is used as a pointer for program/erase.
* Erase operation does not affect the pointer status. Previous pointer status is maintained.
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Revision 0.0
June. 2001