Samsung S5PC100 User Manual page 51

IROM CODE
3 I/O DESCRIPTION
Function
I/O
Signal
OM[4]:
OM[3]:
OM[2:1] :
OM[4:0] Input
OM[0] : APLL/MPLL input selection
NFMOD[5] :
When OM[2:1] = 00 (2
NFMOD[1:0]:
NFMOD
Input
[5:0]
NFMOD[2]:
2.6-6
0 = normal mode, 1 = test mode
0 = 1st boot loader in iROM , 1 = reserved
00 = 2nd boot loader in NAND flash
01 = 2nd boot loader in OneNAND
10 = 2nd boot loader in MMC
11 = Reserved
0 = XXTI
1 = XusbXTI
nd
0 = 2 booting from the device selected by OM[2:1]
nd
1 = 2 booting from USB
nd
boot loader in NAND Flash),
00 = Small Block (512page),
10 = Large Block (2048page),
11 = Dlarge Block (4096page)
0 = 3 addr cycles (for small block) or 4 cycles (for large
block)
1 = 4 addr cycles (for small block) or 5 cycles (for large
block)
Description
S5PC100 USER'S MANUAL (REV1.0)
Pad
XOM
[4:0]
XNFMO
D
[5:0]
Type
Dedicated
Muxed