Samsung S5PC100X, User Manual

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SMDK-C100_USER’S MANUAL_REV 0.2
4.1 PLL CLOCK SOURCE SELECTION
EXTCLK or X-TAL can be selected for the S5PC100X system clock by setting the XOM[0] values.
The Clock Source selection must be X-tal Clock (CFG2[1] on CPU Board).
Description CFG2[1] , (XOM[0])
X-tal Clock (12 ~20MHz) OFF (Logic “0”)
External Oscillator Clock (USB Clock) ON (Logic “1”)
4.2 BOOT MODE SELECTION
4.2.1 Switch Configuration
A. Set CFG2 on CPU board to select Internal ROM Boot
CFG2[5:1]
* CFG2[6] : N.C
Description
[5] [4] [3] [2] [1]
Internal ROM Boot for NAND Flash OFF OFF OFF OFF OFF
Internal ROM Boot for OneNAND OFF OFF OFF
ON
OFF
Internal ROM Boot for Movi / i-NAND OFF OFF
ON
OFF OFF
Internal ROM for (NOR) OFF OFF
ON ON
OFF
NOR FLASH (1
st
& 2
ND
BOOT) OFF
ON X X
OFF
B. Set CFG3 on CPU board to select
CFG3[4:1]
Description
[4] [3] [2] [1]
☞
Case 1 : CFG2 : Internal ROM Boot for NAND Flash
NAND Flash, 512-byte page,
3 Addr. Cycle
OFF OFF OFF OFF
Normal NAND, 512-byte page,
4 Addr. Cycle
OFF
ON
OFF OFF
Large Page NAND, 2K-byte page,
4 Addr. Cycle
OFF OFF
ON
OFF
Large Page NAND, 2K-byte page,
5 Addr. Cycle
OFF OFF
ON
OFF
Large Page NAND, 4K-byte page,
4 Addr. Cycle
OFF
ON ON ON
Large Page NAND, 4K-byte page,
5 Addr. Cycle
OFF
ON ON ON
☞
Case 2 : CFG2 : Internal ROM Boot for Movi / i-NAND
Movi-NAND (MMC) OFF
X X OFF
i- NAND (SD) OFF
X X ON
CFG[6:5]
Description
[6] [5]
ECC Encryption
x OFF
No ECC Encryption
x ON