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S3C2440X Datasheet(PDF) 63 Page - Samsung semiconductor

Part # S3C2440X
Description  16/32-bit RISC microprocessor
Download  429 Pages
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Manufacturer  SAMSUNG [Samsung semiconductor]
Direct Link  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

S3C2440X Datasheet(HTML) 63 Page - Samsung semiconductor

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2003.09.25
Preliminary product information describes products that are in development,
for which full characterization data and associated errata are not yet available
Specifications and information herein are subject to change without notice.
NAND FLASH CONTROLLER
S3C2440X RISC MICROPROCESSOR
6-2
BLOCK DIAGRAM
zmy
ljj nΥU
z›Œ——•Ž z›–•Œ
O[ri zyhtP
z›Œ——•Ž z›–•Œ
j–•›™–““Œ™
uhuk mshzo
p•›Œ™ˆŠŒ
CLE
ALE
nFCE
nRE
nWE
R/nB
I/O0 - I/O15
hoi
z“ˆŒ pVm
j–•›™–“ M
z›ˆ›Œ tˆŠ•Œ
Figure 6-1 NAND Flash Controller Block Diagram
BOOT LOADER FUNCTION
z›Œ——•Ž z›–•Œ
O[ri iœŒ™P
uhuk mshzo
j–•›™–““Œ™
uhuk mshzo
tŒ”–™ 
z—ŒŠˆ“ mœ•Š›–•
yŒŽš›Œ™š
REGISTERS
AUTO BOOT
CORE ACCESS
(Boot Code)
USER ACCESS
Figure 6-2 NAND Flash Controller Boot Loader Block Diagram
During reset, Nand flash controller will get information about connected NAND flash through Pin status(NCON(Adv
flash), GPG13(Page size), GPG14(Address cycle), GPG15(Bus width) – refer to PIN CONFIGURATION), After
power-on or system reset is occurred, the NAND Flash controller load automatically the 4-KBytes boot loader
codes. After loading the boot loader codes, the boot loader code in steppingstone is executed.
NOTE : During the auto boot, the ECC is not checked. So, the first 4-KB of NAND flash should have no bit error.


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