AMB-D255T1 Board
User Manual
1
Copyright
All Rights Reserved.
For the purpose of improving reliability, design and function, the information in this document is
subject to change without prior notice and does not represent a commitment on the part of the
manufacturer.
In no event will the manufacturer be liable for direct, indirect, special, incidental, or
consequential damages arising out of the use or inability to use the product or documentation, even
if advised of the possibility of such damages.
This document contains proprietary information protected by copyright. All rights are reserved.
No part of this Manual may be reproduced by any mechanical, electronic, or other means in any
form without prior written permission of the manufacturer.
Trademarks
AMB-D255T1 is a registered trademarks of Acrosser; IBM PC is a registered trademark of the
International Business Machines Corporation; Pentium is a registered trademark of Intel
Technologies Inc; AMI is a registered trademark of AMI Software International Inc; other product
names mentioned herein are used for identification purposes only and may be trademarks and/or
registered trademarks of their respective companies.
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Table of Contents
Chapter 1 Introduction...........................................................................................................................4
1.1. Specifications....................................................................................................................4
1.2. Package Contents..............................................................................................................5
Chapter 2 H/W Information...................................................................................................................6
2.1 Mainboard illustration (Top Side)..................................................................................... 6
2.2 Location & Definition of Jumpers and Headers............................................................... 7
Chapter 3 BIOS Settings......................................................................................................................15
3.1. Main Setup...................................................................................................................... 16
3.2. Advanced Setup.............................................................................................................. 18
3.3. Chipset Setup.................................................................................................................. 29
3.4. Boot Setup....................................................................................................................... 34
3.5. Security setup.................................................................................................................. 36
3.6. Save & Exit Setup........................................................................................................... 37
Chapter 4 Function Description...........................................................................................................38
4.1. DC Power input connection............................................................................................ 38
4.2. Digital Inputs ..................................................................................................................38
4.3. Digital Outputs................................................................................................................ 38
4.4. RS-232 Ports................................................................................................................... 38
4.5. Serial ATA (SA TA).......................................................................................................... 38
4.6. USB.................................................................................................................................38
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Chapter 1 Introduction
AMB-D255T1 Series with Intel Atom D2550 processor is a multi-function Industrial Main-board,
which is suitable for using in all kind of applications. Besides basic I/O ports like VGA, HDMI, USB,
COM. LAN, and GPIO. It also compliant with most industry standards for computing usage
including CE and FCC.
1.1. Specifications
Intel Atom D2550
CPU
Chipset Intel NM10，TDP 2.0 W
Display
Dual-core, clock speed 1.86G，TDP 10W
1 * VGA and 1 * HDMI
1 * LVDS (24-bit single channel LVDS, up to 1440x900 resolution)
Support DDR3 1066/800 MHz
Memory
Storage
Ethernet
Audio
Serial 3* RS232+1 * RS232 or TTL
Other Ports
Temperature
1 * 204-pin SO-DIMM slot，Up to 4 GB
Intel Serial ATA2 (3 Gbps) controller
1 * Serial ATA ports
1 * Realtek RTL8111E PCI-E 1000Mbps LAN
Realtek ALC662 5.1 Channel HD Audio Codec
1 *MIC In and 1* Line out
6 * USB2.0 (4 * Rear I/O + 2 * Pin Header)
8 * GPIO, 1 * LPT
1 * SIM Card Socket
1 * PS/2 Header
1 * Mini PCI-E （Wireless Devices are Supported）
1 * F- Audio
Storage: -15~80℃
Operating: -10~55℃
BIOS
OS Support
Form Factor
AMI BIOS
Windows 7 32-bit, Fedora 14 32-bit
Mini ITX
4
1.2. Package Contents
Check if the following items are included in the package.
Quick Manual
AMB-D255T1 board
1 x Driver CD
1 x SATA Cable
1 x SATA Power Cable
1 x DC Power Cable
4 x DB9 Cable for COM port
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Chapter 2 H/W Information
This chapter describes the installation of AMB-D255T1. At first, it shows the Function
diagram and the layout of AMB-D255T1. It then describes the unpacking information which you
should read carefully, as well as the jumper/switch settings for the AMB-D255T1 configuration.
2.1 Mainboard illustration (Top Side)
5
Intel D2550 CPU 1.86GHz
34
SATA 2
SATA Connector
2
1
Intel NM10 PCH Mini PCIe slot
DIMM 1
204-Pin DDR3 Socket
6
2.2 Location & Definition of Jumpers and Headers
5
8
16
18
20
22
4
10
14
17
19
21
23
26
28
2
13
3
12
7
29
25
24
1
11
ATX1
Power Output Header
J_DC1
Headers for Power Input
JCMOS1
Headers for CMOS
F_PANEL1
Headers for front panel LED & SW
F_AUDIO1
Headers for front SPK and MIC
J_GPIO1
Pin Header for GPIO
F_USB2
Pin Header for front USB port
J_KBMS1
Pin Header for PS/2 KB and MS
J_LPC1
Pin Header for LPC
J_SPK (Reserved)
Pin Header for Amplifier output
15 27
6
9
LPT1
Pin Header for LPT
LVDS1
Pin Header for LVDS
JP2
Pin Header for LVDS backlight
LVDS_P1
LVDS backlight Voltage selection
JP3
Headers of PSON source
selection
J_COM1
Serial Port 1 Header
JC1
Serial Port 1 control Header
J_COM2
Serial Port 2 Header
JC2
Serial Port 2 control Header
J_COM3
Serial Port 3 Header
JC3_TTL1/2 & JC3_P
Serial Port 3 control Header
J_COM4
Serial Port 4 Header
JC4
Serial Port 4 control Header
SYS_FAN1
CPU Fan Connector
SYS_FAN2
System Fan Connector
SATA_P1
Pin Header for SATA Power
J1
SATA DOM Power Selection
J_VGA1 (Reserved)
Pin Header for VGA
J13 & J14
Pin Header for Mini PCIe USB
29
signal
7
Definition of Jumpers and Headers
[01]ATX1 Power Output Header（4*1 Pin 2.54 mm）
Pin Definition Pin Definition
ATX1
1
3
+12V
GND
2
4
GND
+5V
[02] Power Input Header（4*1 Pin 2.54 mm）
Pin Definition Pin Definition
J_DC1
1
3
+12V IN
GND
2
4
+12V IN
GND
* Please use the DC Power Cable in accessory to avoid the System damage.
[03] CMOS Control Jumper (3*1Pin 2.54 mm)
Setting Instruction
JCMOS1
1-2 Normal (Default)
2-3 Clear CMOS
[04] Front Panel Header（5*2 Pin 2.54 mm）
Pin Definition Pin Definition
1 HD LED+ 2 Power LED+
3 HD LED- 4 Power LED5 GND 6 PW+
F_PANEL1
7 RESET 8 PW9 N/C
[05] F_AUDIO Header（5*2 Pin 2.54 mm）(Reserve for Test)
Pin Definition Pin Definition
1 FP_MIC_L 2 GND
3 FP_MIC_R 4 +3.3V
5 FP_OUT_R 6 Jack Detect
F_AUDIO1
7 GND 8 N/A
9
FP_OUT_L
10 Jack Detect
8
[06] GPIO Header（5*2 Pin 2.00 mm）
Pin Definition Pin Definition
GPO37(0A02 Bit7)
GPO51(0A04 Bit1)
GND
GPI33(0x538 Bit1)
GPO39(0x538 Bit7)
J_GPIO1
1
3
5
7
9
[07] Front USB Header（5*2 Pin 2.54 mm）
Pin Definition Pin Definition
1 + 5 V 2 + 5 V
3 USBP4- 4 USBP5-
F_USB2
5 USBP4+ 6 USBP5+
7 GND 8 GND
10 N/C
[08] KBMS Header (6*1 Pin 2.0mm)
2
4
6
8
10
GPI22(050E Bit6)
GPO38(0538 Bit6)
GPI7(050C Bit7)
GPI36(0x538 Bit4)
+5V
Pin Definition Pin Definition
J_KBMS
1
1
3
5
KB_CK1
MS_CK1
5V
[09] LPC Header (9*1 Pin 2.0mm)
Pin Definition Pin Definition
LFRAME-N
LAD2
LAD0
PLTRST-N
3.3V
LPC1
1
3
5
7
9
[10] Amplifier Header（4*1 Pin 2.00mm）
2
4
6
2
4
6
8
KB_DT1
GND
MS_DT1
LAD3
LAD1
GND
CLK-LPC
J_SPK
* Reserve Function
Pin Definition Pin Definition
1
3
SPKR_RSPKR_L+
2
4
9
SPKR_R+
SPKR_L-
[11] LPT Header (13*2 Pin 2.0mm)
J_LPT1
Pin Definition Pin Definition
1
3
5
7
9
11
13
15
17
19
21
23
25
LPT1
LPT2
LPT3
LPT4
LPT5
LPT6
LPT7
LPT8
LPT9
-ACK
BUSY
PE
SLCT
2
4
6
8
10
12
14
16
18
20
22
24
26 N/C
LPT14
-ERR
LPT16
LPT17
GND
GND
GND
GND
GND
GND
GND
GND
[12] LVDS Header（15*2 Pin 2.0mm）
Pin Definition Pin Definition
1
LVDS_P1*
3
LVDS_P1*
5 GND 6 GND
7 LVDS_A_DATA0_N 8
9 LVDS_A_DATA1_N 10
11 LVDS_A_DATA2_N 12
13 GND 14 GND
15 LVDS_A_CLK_N 16 LVDS_A_CLK_P
17 LVDS_A_DATA3_N 18 LVDS_A_DATA3_P
LVDS1
19 N/A 20
21 N/A 22
23 N/A 24
2
LVDS_P1*
4 NC
LVDS_A_DATA0_P
LVDS_A_DATA1_P
LVDS_A_DATA2_P
N/A
N/A
N/A
25 GND 26 GND
27 N/A 28 N/A
29 N/A 30 N/A
10
[13] LVDS Back Light Power Header（5*1 Pin 2.00mm）
Pin Definition Pin Definition
+12V
LVDS_ENABKL
+5V
2
4
JP2
1
3
5
* It does not support brightness control.
[14] LVDS VDD_PANEL Voltage Selection Header（3*2 Pin 2.00mm）
Settings Function
1-2 Output:12V
3-4 Output:5V
LVDS_P1
5-6 Output :3.3V(Default)
*Attention: Only one jumper can be installed at once!
[15] PSON Signal Selection Header（3*1 Pin 2.00mm）
Settings Definition
GND
NC
1-2 PSON signal from SIO
JP3
2-3 PSON signal from ICH
[16] Serial Port 1 Header（5*2 Pin 2.0 mm）
Pin Definition Pin Definition
1 JC1* 2 RXD
3 TXD 4 DTR
J_COM1
5 GND 6 DSR
7 RTS 8 CTS
9 RI
[17] Serial Port 1 Control Header（3*1 Pin 2.00mm）
Settings Function
1-2 PIN1 Output :5V
JC1
2-3
(Default)
PIN1 Output :DCD
11
[18] Serial Port 2 Header（5*2 Pin 2.0 mm）
Pin Definition Pin Definition
1 JC2* 2 RXD
3 TXD 4 DTR
J_COM2
5 GND 6 DSR
7 RTS 8 CTS
9 RI
[19] Serial Port 2 Control Header（3*1 Pin 2.0 mm）
Settings Function
1-2 PIN1 Output :5V
JC2
2-3 PIN1 Output :DCD (Default)
[20] Serial Port 3 Header（5*2 Pin 2.0 mm）
Pin Definition Pin Definition
1 JC3_P* 2 JC3_TTL1*(RXD)
3 JC3_TTL2*(TXD) 4 DTR
J_COM3
5 GND 6 DSR
7 RTS 8 CTS
9 N/C or JC3_P*
*Attention: The Pin9 output default value is ‘NC’，but it also can output 5V or 12V by
changing the hardware （please refer to JC_P）。
[21] Serial Port 3 Control Header（4*1 Pin 2.54mm）
Header Settings Working Mode
JC3_TTL1
1-2、3-4
RS-232（Default）
JC3_TTL1
JC3_TTL2
JC3_P
JC3_TTL2
JC3_TTL1
JC3_TTL2
Settings Function
1-2
2-3
3-4
1-2、3-4
2-3
TTL
2-3
PIN1、9 Output :5V
PIN1、9 Output :12V
PIN1、9 NC（Default）
12
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