12) COM (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.
Pin No. Denition Pin No. Denition
1 NDCD- 6 NDSR-
2 NSIN 7 NRTS-
3 NSOUT 8 NCTS-
4 NDTR- 9 NRI-
5 GND 10 No Pin
1
2
9
10
13) SPI_TPM (Trusted Platform Module Header)
You may connect an SPI TPM (Trusted Platform Module) to this header.
14) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the BIOS conguration and reset the CMOS values to factory defaults. To clear
the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.
• Always turn off your computer and unplug the power cord from the power outlet before clearing
the CMOS values.
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or
manually congure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS congurations).
Open: Normal
Short: Clear CMOS Values
Pin No. Denition Pin No. Denition
1
Data Output
7
Chip Select
2
Power (3.3V)
8
GND
3
No Pin
9
IRQ
4
NC
10
NC
5
Data Input
11
NC
6
CLK
12
RST
12
11
2
1
F_USB30
F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3 4 5
S3
BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_
SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
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