k9f2808u0m-yib0 Samsung Semiconductor, Inc., k9f2808u0m-yib0 Datasheet - Page 11

• Manufacturer Part Number: k9f2808u0m-yib0
• Description: Nand Flash Memory
• Manufacturer: Samsung Semiconductor, Inc.

K9F2808U0M-YCB0, K9F2808U0M-YIB0
Erase Flow Chart
NAND Flash Technical Notes (Continued)
*
Block Replacement
Erase Error
Buffer
memory
: If erase operation results in an error, map out
the failing block and replace it with another block.
*
error occurs
No
Read Status Register
Write Block Address
Erase Completed
or R/B = 1 ?
I/O 0 = 0 ?
I/O 6 = 1 ?
Write D0h
Write 60h
Start
Yes
Yes
Page a
No
11
Block B
Block A
Reclaim the Error
Read Flow Chart
When the error happens with page "a" of Block "A", try
to write the data into another Block "B" from an exter-
nal buffer. Then, prevent further system access to
Block "A" (by creating a "invalid block" table or other
appropriate scheme.)
No
Page Read Completed
FLASH MEMORY
ECC Generation
Write Address
Verify ECC
Read Data
Write 00H
Start
Yes