k9f6408u0a Samsung Semiconductor, Inc., k9f6408u0a Datasheet - Page 12

• Manufacturer Part Number: k9f6408u0a
• Description: 8m X 8 Bit Nand Flash Memory
• Manufacturer: Samsung Semiconductor, Inc.

Pointer Operation of K9F6408U0A
Table 1. Destination of the pointer
(1) "A" area program
(2) "B" area program
(3) "C" area program
The K9F6408U0A 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 1 shows the destination of the pointer, and figure 2 shows
the block diagram of its operations.
Example of Programming with successive Pointer Operation
K9F6408U0A-TCB0, K9F6408U0A-TIB0
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.
* Erase operation does not affect the pointer status. Previous pointer status is maintained.
Program
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
"00h" Plane("A" area)
"00h" Plane("A" area)
10h
10h
10h
Figure 2. Block Diagram of Pointer Operation
Pointer select
commnad
(00h, 01h, 50h)
"A" area program
"B" area program
"C" area program
(00h plane)
256 Byte
"A" area
"A"
80h
80h
80h
FLASH MEMORY
(01h plane)
Address / Data input
Address / Data input
Address / Data input
256 Byte
"B" area
Pointer
"B"
(50h plane)
16 Byte
10h
10h
10h
"C" area
"C"
"A" area program
"A" area program
"C" area program
Page Register
Internal