![Samsung S3C2451X Скачать руководство пользователя страница 38](http://html.mh-extra.com/html/samsung/s3c2451x/s3c2451x_user-manual_340826038.webp)
Preliminary
PRODUCT OVERVIEW
S3C2451X RISC MICROPROCESSOR
1-34
Preliminary product information describe 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.
S3C2451X OPERATION MODE DESCRIPTION
Table 1-5. S3C2451X Operation Mode Description
OM[4] OM[3] OM[2] OM[1] OM[0] OM[4]
OM[3]
OM[2] OM[1] OM[0]
Operation
Mode
0 OSC
0
1
addr(4)
EXT
0 OSC
0
1
1
page(4K)
addr(5)
EXT
0 OSC
0
1
addr(4)
EXT
0 OSC
0
1
1
1
N
A
N
D
Large
Block
page(2K)
addr(5)
EXT
NAND
0 OSC
0
1
iROM
EXT
iROM
0
0
1
1
Reserved Reserved
0 OSC
0
1
addr(3)
EXT
0 OSC
0
1
1
1
1
N
A
N
D
Small
Block
page(512)
addr(4)
EXT
NAND
0 Reserved
Reserved
0
1 JTAG JTAG
0 OSC
0
1
1
OneNAND
(Muxed)
16-bit
EXT
OneNAND
(Muxed)
0 OSC
0
1
8-bit
EXT
0 OSC
1 0
1
1
1
OneNAND/
ROM
ROM/
OneNAND
(Demuxed)
16-bit
EXT
ROM/
OneNAND
(Demuxed)
* OM[0] selects the clock source of MPLL/EPLL
( You can select different EPLL clock source with that of MPLL by software setting – refer to SYSCON)
* addr(x) means the number of address cycle during NAND Flash operation.