km29u64000it Samsung Semiconductor, Inc., km29u64000it Datasheet - Page 12

• Manufacturer Part Number: km29u64000it
• Description: 8m X 8 Bit Nand Flash Memory
• Manufacturer: Samsung Semiconductor, Inc.

Pointer Operation of KM29U64000
Table 1. Destination of the pointer
(1) "A" area program
(2) "B" area program
(3) "C" area program
The KM29U64000 has three read modes to set the destination of the pointer. The pointer is set to "A" area by the "00h" command, to
"B" area by the "01" command, and to "C" area by the "50h" command. Table 1 shows the destination of the pointer, and figure 2
shows the block diagram of its operations.
Example of Pointer Operation programming
KM29U64000T, KM29U64000IT
Command
Table 2. Pointer Status after each operation
* 01H command is valid just one time when it is used as a pointer for program/erase.
Program/Erase
Reset
Power up
00H
01H
50H
Operation
50h
00h
00h
Pointer position
256 ~ 511 byte
512 ~ 527 byte
0 ~ 255 byte
"C" area
"A" area
"A" area
00h
01h
50h
2nd half array(B)
1st half array(A)
spare array(C)
"A" area
"B" area
"C" area
Area
80h
80h
80h
With previous 01H, Device is set to 00H Plane*
With previous 00H, Device is set to 00H Plane
With previous 50H, Device is set to 50H Plane
Address / Data input
Address / Data input
Address / Data input
12
Pointer status after operation
Figure 2. Block diagram of pointer Operation
"00h" Plane("A" area)
"00h" Plane("A" area)
Pointer select
commnad
(00h, 01h, 50h)
10h
10h
10h
"A" area program
"B" area program
"C" area program
(00h plane)
"A" area
256 Byte
"A"
Pointer
80h
80h
80h
FLASH MEMORY
(01h plane)
256 Byte
Address / Data input
Address / Data input
Address / Data input
"B" area
"B"
(50h plane)
16 Byte
"C" area
10h
10h
10h
"C"
"A" area program
"A" area program
"C" area program
Internal
Page Buffer