Page 1
PICO312
Intel® Pentium® N4200/ Celeron®
N3350 Processor Pico-ITX Board
User’s Manual
Page 2
ii
Disclaimers
This manual has been carefully checked and believed to contain accurate information.
Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third
party’s rights, and any liability arising from such use.
Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy,
completeness or usefulness of any information in this document. Axiomtek does not make any
commitment to update the information in this manual.
Axiomtek reserves the right to change or revise this document and/or product at any time
without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Axiomtek Co., Ltd.
CAUTION
If you replace wrong batteries, it causes the danger of explosion. It is recommended by the
manufacturer that you follow the manufacturer’s instructions to only replace the same or
equivalent type of battery, and dispose of used ones.
Copyright 2018 Axiomtek Co., Ltd.
All Rights Reserved
June 2018, Version A2
Printed in Taiwan
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iii
ESD Precautions
Computer boards have integrated circuits sensitive to static electricity. To prevent chipsets
from electrostatic discharge damage, please take care of the following jobs with precautions:
Do not remove boards or integrated circuits from their anti-static packaging until you are
ready to install them.
Before holding the board or integrated circuit, touch an unpainted portion of the system
unit chassis for a few seconds. It discharges static electricity from your body.
Wear a wrist-grounding strap, available from most electronic component stores, when
handling boards and components.
Trademarks Acknowledgments
Axiomtek is a trademark of Axiomtek Co., Ltd.
Intel® and Celeron® are trademarks of Intel Corporation.
Windows® is a trademark of Microsoft Corporation.
AMI is a trademark of American Megatrend Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International Business Machines Corporation.
Other brand names and trademarks are the properties and registered brands of their
respective owners.
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iv
Table of Contents
Disclaimers ..................................................................................................... ii
ESD Precautions ........................................................................................... iii
Chapter 1 Introduction ............................................. 1
1.1 Features ............................................................................................... 2
1.2 Specifications ...................................................................................... 2
1.3 Utilities ................................................................................................. 3
Chapter 2 Board and Pin Assignments .................... 5
2.1 Board Dimensions and Fixing Holes ................................................. 5
2.2 Board Layout ....................................................................................... 7
2.3 Assembly Drawing .............................................................................. 9
2.4 Jumper and Switch Settings ............................................................ 11
2.4.1 LVDS +3.3V/+5V/+12V Voltage Selection (JP2) ....................................... 12
2.4.2 Restore BIOS Optimal Defaults (JP3) ....................................................... 12
2.4.3 Auto Power On (SW1) ............................................................................... 12
2.5 Connectors ........................................................................................ 13
2.5.1 Board to Board Connectors (CN2 and CN3) ............................................. 14
2.5.2 Fan Power Connector (CN4) ..................................................................... 16
2.5.3 LVDS Connector (CN5) ............................................................................. 16
2.5.4 USB 2.0 Wafer Connector (CN6) .............................................................. 18
2.5.5 Inverter Connector (CN7) .......................................................................... 18
2.5.6 SATA Power Connector (CN8) .................................................................. 18
2.5.7 SMBus Connector (CN9) .......................................................................... 18
2.5.8 Front Panel Connector (CN10) ................................................................. 19
2.5.9 DC Jack Power Connector w/ Screw (CN12) ........................................... 19
2.5.10 HDMI Connector (CN13) ........................................................................... 20
2.5.11 I2C Connector (CN14) .............................................................................. 20
2.5.12 VGA Connector (CN15) ............................................................................. 20
2.5.13 CMOS Battery Connector (BAT1) ............................................................. 21
2.5.14 Ethernet Port (LAN1) ................................................................................. 21
2.5.15 SATA Connector (SSATA1) ....................................................................... 21
2.5.16 Full-size PCI-Express Mini Card and mSATA Connector (SCN1) ............. 22
Chapter 3 Hardware Description ........................... 23
3.1 Microprocessors ............................................................................... 23
3.2 BIOS ................................................................................................... 23
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3.3 System Memory ................................................................................. 23
3.4 I/O Port Address Map ........................................................................ 24
3.5 Interrupt Controller (IRQ) Map ......................................................... 25
3.6 Memory Map ...................................................................................... 31
Chapter 4 AMI BIOS Setup Utility .......................... 33
4.1 Starting ............................................................................................... 33
4.2 Navigation Keys ................................................................................ 33
4.3 Main Menu .......................................................................................... 35
4.4 Advanced Menu ................................................................................. 36
4.5 Chipset Menu ..................................................................................... 49
4.6 Security Menu .................................................................................... 51
4.7 Boot Menu .......................................................................................... 52
4.8 Save & Exit Menu .............................................................................. 57
Appendix A Watchdog Timer ................................... 59
A.1 About Watchdog Timer ..................................................................... 59
A.2 How to Use Watchdog Timer ............................................................ 59
Appendix B BIOS Flash Utility ................................ 61
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PICO312 Pico-ITX Board
Introduction 1
Chapter 1
Introduction
The PICO312 is a Pico-ITX board with Intel® Pentium® N4200/ Celeron® N3350 processor that
deliver outstanding system performance through high-bandwidth interfaces, multiple I/O
functions for interactive applications and various embedded computing solutions.
The board has one 204-pin unbuffered SO-DIMM socket for DDR3L 1867MHz SO-DIMM
memory with maximum capacity up to 8GB. It also features one Gigabit/Fast Ethernet, one
SATA port with transfer rates up to 6Gb/s, one USB 2.0 high speed compliant, and built-in high
definition audio codec that can achieve the best stability and reliability for industrial
applications. The board can be enhanced by its built-in watchdog timer function, a special
industrial feature not commonly seen on other motherboards.
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PICO312 Pico-ITX Board
2 Introduction
1.1 Features
Intel
®
Pentium® N4200 and Celeron® N3350 processors
1 DDR3L SO-DIMM supports up to 8GB memory capacity
1 USB 2.0 port and 1 Gigabit Ethernet port
1 PCI-Express Mini Card with mSATA supported
1.2 Specifications
CPU
Intel
®
Pentium® N4200 1.1GHz quad core.
Intel
®
Celeron® N3350 1.1GHz dual core.
Thermal Solution
Passive.
BIOS
American Megatrends Inc. UEFI (Unified Extensible Firmware Interface) BIOS.
64Mbit SPI Flash, DMI, Plug and Play.
PXE Ethernet Boot ROM.
System Memory
One 204-pin unbuffered DDR3L SO-DIMM socket.
Maximum up to 8GB DDR3L 1867MHz memory.
Serial ATA
One SATA-600 connector.
mSATA support
USB Interface
One USB port with fuse protection and complies with USB Spec. Rev. 2.0.
Display
A standard 15-pin D-Sub VGA connector which is co-layout with a HDMI connector.
The HDMI resolution is up to 1920x1080. The VGA resolution is up to 1920x1200.
One 2x20-pin connector for 18/24-bit single and dual channel LVDS and one 8-pin
wafer connector for inverter control. LVDS resolution is up to 1920x1200 in 24-bit
dual channel.
Watchdog Timer
1~65536 seconds or minutes; up to 65535 levels.
Ethernet
One 1000/100/10Mbps Gigabit/Fast Ethernet port in RJ-45 connector.
Support Wake-on-LAN, PXE Boot ROM with Intel
®
i211AT.
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PICO312 Pico-ITX Board
Introduction 3
Expansion Interface
One PCI-Express Mini Card socket complies with PCI-Express Mini Card Spec.
V1.2.
One board to board connector (high speed signal).
One board to board connector (low speed signal).
Power Input
DC jack power connector, co-layout with 1x2-pin right angle connector.
+12V DC-in only.
AT auto power on function supported.
Power Management
ACPI (Advanced Configuration and Power Interface).
Form Factor
Pico-ITX form factor.
Note
All specifications and images are subject to change without notice.
1.3 Utilities
Chipset and graphics driver
Intel
®
Trusted Execution Engine (Intel® TXE) driver
Ethernet driver (i211AT)
Audio driver
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PICO312 Pico-ITX Board
4 Introduction
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PICO312 Pico-ITX Board
Board and Pin Assignments 5
Chapter 2
Board and Pin Assignments
2.1 Board Dimensions and Fixing Holes
Top View
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PICO312 Pico-ITX Board
6 Board and Pin Assignments
Bottom View
Side View
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PICO312 Pico-ITX Board
Board and Pin Assignments 7
2.2 Board Layout
Top View
Side View
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PICO312 Pico-ITX Board
8 Board and Pin Assignments
Bottom View
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PICO312 Pico-ITX Board
Board and Pin Assignments 9
2.3 Assembly Drawing
For thermal dissipation, a thermal solution enables the PICO312’s components to dissipate
heat efficiently. All heat generating components are thermally conducted to the heatspreader in
order to avoid hot spots. Images below illustrate how to install the thermal solution on
PICO312.
1. Heatsink for PICO312 (see image below):
2. First of all, use the following four screws to secure heatsink on heatspreader.
x4
3. The PICO312 has four assembly holes for installing thermal solution. Align and firmly
secure the plate to the PICO312. Be careful not to over-tighten the screws.
x4 x4 x4 (8mm)
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PICO312 Pico-ITX Board
10 Board and Pin Assignments
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PICO312 Pico-ITX Board
Board and Pin Assignments 11
2.4 Jumper and Switch Settings
Jumper is a small component consisting of jumper clip and jumper pins. Install jumper clip on 2
jumper pins to close. And remove jumper clip from 2 jumper pins to open. Below illustration
shows how to set up jumper.
Properly configure jumper and switch settings on the PICO312 to meet your application
purpose. Below you can find a summary table of jumpers, switch and onboard default settings.
Note
Once the default jumper or switch setting needs to be changed, please do it under
power-off condition.
Jumper and Switch
Description
Setting
JP2
LVDS +3.3V/+5V/+12V Voltage Selection
Default: +3.3V
1-2 Close
JP3
Restore BIOS Optimal Defaults
Default: Normal Operation
1-2 Close
SW1
Auto Power On
Default: Enable
2-3 Close
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PICO312 Pico-ITX Board
12 Board and Pin Assignments
2.4.1 LVDS +3.3V/+5V/+12V Voltage Selection (JP2)
The board supports voltage selection for flat panel displays. Use these jumpers to set
LVDS connector (CN5) pin 1~6 +DVCCM1 to +3.3V, +5V or +12V. To prevent hardware
damage, before connecting please make sure that the input voltage of flat panel is
correct.
2.4.2 Restore BIOS Optimal Defaults (JP3)
Put jumper clip to pin 2-3 for a few seconds then move it back to pin 1-2. Doing this
procedure can restore BIOS optimal defaults.
2.4.3 Auto Power On (SW1)
If SW1 is enabled for power input, the system will be automatically power on without
pressing soft power button. If SW1 is disabled for power input, it is necessary to
manually press soft power button to power on the system.
Function
Setting
+3.3V level (Default)
1-2 close
+5V level
2-4 close
+12V level
5-6 close
Function
Setting
Normal (Default)
1-2 close
Restore BIOS optimal defaults
2-3 close
Function
Setting
Disable auto power on
1-2 close
Enable auto power on (Default)
2-3 close
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PICO312 Pico-ITX Board
Board and Pin Assignments 13
2.5 Connectors
Signals go to other parts of the system through connectors. Loose or improper connection
might cause problems, please make sure all connectors are properly and firmly connected.
Here is a summary table which shows all connectors on the hardware.
Connector
Description
CN2
Board to Board Connector 1 (Low Speed Signal)
CN3
Board to Board Connector 2 (High Speed Signal)
CN4
Fan Power Connector (+5V level)
CN5
LVDS Connector
CN6
USB 2.0 Wafer Connector
CN7
Inverter Connector
CN8
SATA Power Connector
CN9
SMBus Connector
CN10
Front Panel Connector
CN12
DC Jack Power Connector w/ Screw
CN13
HDMI Connector
CN14
I2C Connector
CN15
VGA Connector
BAT1
CMOS Battery Connector
LAN1
Ethernet Port
SSATA1
SATA Connector
SCN1
Full-size PCI-Express Mini Card and mSATA Connector
SSDIMM1
DDR3L SO-DIMM Connector
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PICO312 Pico-ITX Board
14 Board and Pin Assignments
2.5.1 Board to Board Connectors (CN2 and CN3)
CN2 is a 2x30-pin board to board connector. The pin assignments of CN2 are given as
follows.
1 59
2 60
Pin
Signal
Pin
Signal
1
HDA_SYNC_1P8
2
HDA_CLK_1P8
3
HDA_SDI0_1P8
4
HDA_RST_1P8_N
5
HDA_SDO_1P8
6
HDA_VDDIO
7
DCD2/COM3_EN
8
DSR2/COM4_EN
9
RXD2/COM3_TERM
10
RTS2/COM4_TERM
11
TXD2/COM3_GPIO0
12
CTS2/COM4_GPIO0
13
DTR2/COM3_GPIO1
14
RI2/COM4_GPIO1
15
DCD1/COM1_EN
16
DSR1/COM2_EN
17
RXD1/COM1_TERM
18
RTS1/COM2_TERM
19
TXD1/COM1_GPIO0
20
CTS1/COM2_GPIO0
21
DTR1/COM1_GPIO1
22
RI1/COM2_GPIO1
23
N/A
24
N/A
25
LPC_CLK0_25M_BTB
26
L_AD3
27
L_FRAME_N
28
L_AD2
29
SER_IRQ
30
L_AD31
31
N/A
32
L_AD30
33
USB_OC1_2_3P3_N
34
USB_OC3_4_3P3_N
35
GND
36
GND
37
USB_DP1
38
USB_DP3
39
USB_DN1
40
USB_DN3
41
GND
42
GND
43
USB_DP2
44
USB_DN4
45
USB_DN2
46
USB_DP4
47
GND
48
GND
49
FP_PSIN_N
50
+5V_SBY
51
SATA_LED_3P3_N
52
+5V_SBY
53
FP_RST_N
54
+V5_SBY
55
PLTRST_1_N
56
GND
57
+V3.3S
58
+V5S
59
+V3.3S
60
+V5S
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PICO312 Pico-ITX Board
Board and Pin Assignments 15
CN3 is a 2x30-pin board to board connector. The pin assignments of CN3 are given as
follows.
1 59
2 60
Note
It is suggested to insert I/O board (AX93A00, AX93A01, AX93A02 or
AX93A09 ) into CN2 and CN3 on PICO312.
Pin
Signal
Pin
Signal
1
USB3_P1_RX_DP
2
PCIE_P2_RXP
3
USB3_P1_RX_DN
4
PCIE_P2_RXN
5
GND
6
GND
7
USB3_P1_TX_DP
8
PCIE_P2_TXP
9
USB3_P1_TX_DN
10
PCIE_P2_TXN
11
GND
12
GND
13
USB3_P2_RX_DP
14
PCIE_REFCLK2_DP
15
USB3_P2_RX_DN
16
PCIE_REFCLK2_DN
17
GND
18
GND
19
USB3_P2_TX_DP
20
DDI1_TX0_DP
21
USB3_P2_TX_DN
22
DDI1_TX0_DN
23
GND
24
GND
25
USB3_P3_RX_DP
26
DDI1_TX1_DP
27
USB3_P3_RX_DN
28
DDI1_TX1_DN
29
GND
30
GND
31
USB3_P3_TX_DP
32
DDI1_TX2_DP
33
USB3_P3_TX_DN
34
DDI1_TX2_DN
35
GND
36
GND
37
USB3_P4_RX_DP
38
DDI1_TX3_DP
39
USB3_P4_RX_DN
40
DDI1_TX3_DN
41
GND
42
GND
43
USB3_P4_TX_DP
44
DDI1_DDC_DATA
45
USB3_P4_TX_DN
46
DDI1_DDC_CLK
47
GND
48
GND
49
DDI1_AUX_DP
50
DDI1_HPD_C
51
DDI1_AUX_DN
52
PCIE_WAKE2_N
53
GND
54
SMB_DATA_MAIN
55
+V12S
56
SMB_CLK_MAIN
57
+3.3V_SBY
58
+V5S
59
+3.3V_SBY
60
+V5S
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PICO312 Pico-ITX Board
16 Board and Pin Assignments
2.5.2 Fan Power Connector (CN4)
The CN4 is a 2-pin (pitch=1.5mm) wafer connector, which is compliant with JST
B2B-ZH-K-S, for fan power interface.
1
2.5.3 LVDS Connector (CN5)
This board has a 2x20-pin connector for LVDS LCD interface. It is strongly
recommended to use the matching JST SHDR-40VS-B connector for LVDS interface.
Pin 1~6 +DVCCM1 can be set to +3.3V, +5V or +12V by setting JP2 (see section 2.4.1).
18-bit single channel
Pin
Signal
1
+5V 2 GND
Pin
Signal
Pin
Signal
1
+DVCCM1
2
+DVCCM1
3
+DVCCM1
4
+DVCCM1
5
+DVCCM1
6
+DVCCM1
7
N.C 8 N.C 9 GND
10
GND
11
N.C
12
N.C
13
N.C
14
N.C
15
GND
16
GND
17
N.C
18
N.C
19
N.C
20
N.C
21
GND
22
GND
23
Channel A D0-
24
N.C
25
Channel A D0+
26
N.C
27
GND
28
GND
29
Channel A D1-
30
N.C
31
Channel A D1+
32
N.C
33
GND
34
GND
35
Channel A D2-
36
Channel A CLK-
37
Channel A D2+
38
Channel A CLK+
39
GND
40
GND
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PICO312 Pico-ITX Board
Board and Pin Assignments 17
24-bit single channel 18-bit dual channel
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1
+DVCCM1
2
+DVCCM1
1 +DVCCM1
2
+DVCCM1
3
+DVCCM1
4
+DVCCM1
3 +DVCCM1
4
+DVCCM1
5
+DVCCM1
6
+DVCCM1
5 +DVCCM1
6
+DVCCM1
7
N.C 8 N.C 7
N.C 8 N.C 9 GND
10
GND 9
GND
10
GND
11
N.C
12
N.C 11
N.C
12
Channel B D0-
13
N.C
14
N.C 13
N.C
14
Channel B D0+
15
GND
16
GND 15
GND
16
GND
17
N.C
18
N.C 17
Channel B CLK-
18
Channel B D1-
19
N.C
20
N.C 19
Channel B CLK+
20
Channel B D1+
21
GND
22
GND 21
GND
22
GND
23
Channel A D0-
24
N.C 23
Channel A D0-
24
Channel B D2-
25
Channel A D0+
26
N.C 25
Channel A D0+
26
Channel B D2+
27
GND
28
GND 27
GND
28
GND
29
Channel A D1-
30
Channel A D3-
29
Channel A D1-
30
N.C
31
Channel A D1+
32
Channel A D3+
31
Channel A D1+
32
N.C
33
GND
34
GND 33
GND
34
GND
35
Channel A D2-
36
Channel A CLK-
35
Channel A D2-
36
Channel A CLK-
37
Channel A D2+
38
Channel A CLK+
37
Channel A D2+
38
Channel A CLK+
39
GND
40
GND 39
GND
40
GND
24-bit dual channel
Pin
Signal
Pin
Signal
1
+DVCCM1
2
+DVCCM1
3
+DVCCM1
4
+DVCCM1
5
+DVCCM1
6
+DVCCM1
7
N.C
8
N.C
9
GND
10
GND
11
Channel B D3-
12
Channel B D0-
13
Channel B D3+
14
Channel B D0+
15
GND
16
GND
17
Channel B CLK-
18
Channel B D1-
19
Channel B CLK+
20
Channel B D1+
21
GND
22
GND
23
Channel A D0-
24
Channel B D2-
25
Channel A D0+
26
Channel B D2+
27
GND
28
GND
29
Channel A D1-
30
Channel A D3-
31
Channel A D1+
32
Channel A D3+
33
GND
34
GND
35
Channel A D2-
36
Channel A CLK-
37
Channel A D2+
38
Channel A CLK+
39
GND
40
GND
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PICO312 Pico-ITX Board
18 Board and Pin Assignments
2.5.4 USB 2.0 Wafer Connector (CN6)
This is a 4-pin (pitch=1.25mm) wafer connector, which is compliant with Molex
530470410, for USB 2.0 interface.
2.5.5 Inverter Connector (CN7)
This is a Hirose DF13-8P-1.25C 8-pin connector for inverter. We strongly recommend
you to use the matching DF13-8P-1.25C connector to avoid malfunction.
2.5.6 SATA Power Connector (CN8)
The CN8 is a 4-pin (pitch=2.0mm) wafer connector, which is compliant with JST
B4B-PH-K-S, for SATA power interface.
2.5.7 SMBus Connector (CN9)
This is a 3-pin (pitch=1.5mm) wafer connector for SMBus (System Management Bus)
interface.
Pin
Signal
1
USB_PWR (+5V_SBY level)
2
D+ 3 D-
4
GND
Pin
Signal
1
+12VM1 (+12V level)
2
+12VM1 (+12V level)
3
+V5S
4
LVDS Enable Control
5
GND
6
GND
7
GND
8
LVDS Brightness Control
Pin
Signal
1
+12V
2
GND
3
GND
4
+5V
Pin
Signal
1
SMB_CLK_MAIN
2
SMB_DATA_MAIN
3
GND
Page 25
PICO312 Pico-ITX Board
Board and Pin Assignments 19
2.5.8 Front Panel Connector (CN10)
The CN10 is 2x5-pin header (pitch=2.0mm) for front panel interface.
Power LED
Pin 4 connects anode (+) of LED and pin 3 connects cathode(-) of LED. The power LED
lights up when the system is powered on.
Power On/Off Button
Pin 5 and 6 connect the power button on front panel to CPU board, which allows users to
turn on or off power supply.
System Reset Switch
Pin 7 and 8 connect the case-mounted reset switch that reboots your computer without
turning off the power switch. It is a better way to reboot your system for a longer life of
system power supply.
HDD Activity LED
This connection is linked to hard drive activity LED on the control panel. LED flashes
when HDD is being accessed. Pin 9 and 10 connect the hard disk drive to the front panel
HDD LED, pin 9 is assigned as cathode(-) and pin 10 is assigned as anode(+).
2.5.9 DC Jack Power Connector w/ Screw (CN12)
The CN12 is a DC jack (Φ2.5) with screw.
Firmly insert approximately 60W/12V adapter
into this connector. Loose connection may
cause system instability and make sure all
components/devices are properly installed
before connecting.
Pin
Signal
1
GND
2
PWR_PSON#
3
PWRLED-
4
PWRLED+
5
PWRSW-
6
PWRSW+
7
HW RST-
8
HW RST+
9
HDDLED-
10
HDDLED+
Page 26
PICO312 Pico-ITX Board
20 Board and Pin Assignments
2.5.10 HDMI Connector (CN13)
The HDMI (High-Definition Multimedia Interface) is a compact digital interface which is
capable of transmitting high-definition video and high-resolution audio over a single
cable.
2.5.11 I2C Connector (CN14)
This is a 3-pin (pitch=1.25mm) wafer connector for I2C interface.
2.5.12 VGA Connector (CN15)
The CN15 is a standard 15-pin D-Sub connector which is co-layout with HDMI connector
(CN13). It is commonly used for VGA display. This VGA interface configuration can be
configured via software utility.
Pin
Signal
Pin
Signal
1
HDMI_OUT_DATA2+
2
GND
3
HDMI_OUT_DATA2-
4
HDMI_OUT_DATA1+
5
GND
6
HDMI_OUT_DATA1-
7
HDMI_OUT_DATA0+
8
GND
9
HDMI_OUT_DATA0-
10
HDMI_OUT_Clock+
11
GND
12
HDMI_OUT_Clock-
13
N.C.
14
N.C.
15
HDMI_OUT_SCL
16
HDMI_OUT_SDA
17
GND
18
HDMI_VCC (+5V
level)
19
HDMI_OUT_HPD
Pin
Signal
1
I2C_CLK_SBY
2
I2C_DAT_SBY
3
GND
Pin
Signal
Pin
Signal
1
RED
2
GREEN
3
BLUE
4
N.C 5 GND
6
GND
7
GND
8
GND
9
CRT_VCC
10
GND
11
N.C
12
DDC_DATA
13
Hsync
14
Vsync
15
DDC_CLK
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Board and Pin Assignments 21
1
2.5.13 CMOS Battery Connector (BAT1)
This is a 2-pin (pitch=1.25mm) wafer connector for CMOS battery interface.
2.5.14 Ethernet Port (LAN1)
The board has one RJ-45 Ethernet connector. Connection can be established by
plugging one end of the Ethernet cable into this RJ-45 connector and the other end
(phone jack) to a 1000/100/10-Base-T hub.
2.5.15 SATA Connector (SSATA1)
This Serial Advanced Technology Attachment (Serial ATA or SATA) connector is for
high-speed SATA interface port. It is a computer bus interface for connecting to devices
such as hard disk drives.
Pin
Signal
1
+3.3V
2
GND
Pin
1000
Base-T
100/10
Base-T
Description
L1
BI_DA+
TX+
Bidirectional or Transmit Data+
L2
BI_DA-
TX-
Bidirectional or Transmit Data-
L3
BI_DB+
RX+
Bidirectional or Receive Data+
L4
BI_DC+
N.C.
Bidirectional or Not Connected
L5
BI_DC-
N.C.
Bidirectional or Not Connected
L6
BI_DB-
RX-
Bidirectional or Receive Data-
L7
BI_DD+
N.C.
Bidirectional or Not Connected
L8
BI_DD-
N.C.
Bidirectional or Not Connected
A
Active Link LED (Yellow)
Off: No link
Blinking: Data activity detected
B
Speed LED
1000: Orange
100/10: OFF/Green
Pin
Signal
1
GND
2
TXP 3 TXN 4 GND
5
RXN
6
RXP
7
GND
1
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22 Board and Pin Assignments
2.5.16 Full-size PCI-Express Mini Card and mSATA Connector
(SCN1)
This is a PCI-Express Mini Card connector on the bottom side supporting PCI-Express
x1 or SATA and USB 2.0. It complies with PCI-Express Mini Card Spec. V1.2. To enable
or disable SATA for mSATA card, please refer to BIOS setting in section 4.4. The default
setting is mSATA.
Pin
Signal
Pin
Signal
1
PCIE_WAKE2_N
2
+3.3V_SBY
3
No use
4
GND
5
No use
6
+V1.5S
7
GND
8
No use
9
GND
10
No use
11
PCIE_REFCLK2_DN
12
No use
13
PCIE_REFCLK2_DP
14
No use
15
GND
16
No use
17
No use
18
GND
19
No use
20
+3.3V_SBY
21
GND
22
PLTRST_1_N
23
PCIE_mSATA_Card_
RXN
24
+3.3V_SBY
25
PCIE_mSATA_Card_
RXP
26
GND
27
GND
28
+V1.5S
29
GND
30
SMB_CLK_3P3_SBY
31
PCIE_mSATA_Card_
TXN
32
SMB_DATA_3P3_SBY
33
PCIE_mSATA_Card_
TXP
34
GND
35
GND
36
USB_DN5
37
GND
38
USB_DP5
39
+3.3V_SBY
40
GND
41
+3.3V_SBY
42
No use
43
GND
44
No use
45
No use
46
No use
47
No use
48
+V1.5S
49
No use
50
GND
51
No use
52
+3.3V_SBY
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PICO312 Pico-ITX Board
Hardware Description 23
Chapter 3
Hardware Description
3.1 Microprocessors
The PICO312 supports Intel® Pentium® N4200 and Celeron
®
N3350 processors, which
enables your system to operate under Windows® 10 environments. The system performance
depends on the microprocessor. Make sure all correct settings are arranged for your installed
microprocessor to prevent the CPU from damages.
3.2 BIOS
The PICO312 uses AMI Plug and Play BIOS with a single 64Mbit SPI Flash.
3.3 System Memory
The PICO312 supports one 204-pin DDR3L SO-DIMM socket for maximum memory capacity
up to 8GB DDR3L SDRAMs. The memory module comes in sizes of 2GB, 4GB and 8GB.
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24 Hardware Description
3.4 I/O Port Address Map
The Intel® Pentium® N4200 and Celeron
®
N3350 processors communicate via I/O ports.
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Hardware Description 25
3.5 Interrupt Controller (IRQ) Map
The interrupt controller (IRQ) mapping list is shown as follows:
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26 Hardware Description
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Hardware Description 27
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28 Hardware Description
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Hardware Description 29
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30 Hardware Description
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Hardware Description 31
3.6 Memory Map
The memory mapping list is shown as follows:
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32 Hardware Description
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AMI BIOS Setup Utility 33
Chapter 4
AMI BIOS Setup Utility
The AMI UEFI BIOS provides users with a built-in setup program to modify basic system
configuration. All configured parameters are stored in a flash chip to save the setup information
whenever the power is turned off. This chapter provides users with detailed description about
how to set up basic system configuration through the AMI BIOS setup utility.
4.1 Starting
To enter the setup screens, follow the steps below:
1. Turn on the computer and press the <Del> key immediately.
2. After you press the <Del> key, the main BIOS setup menu displays. You can access the
other setup screens from the main BIOS setup menu, such as the Advanced and Chipset
menus.
Note
If your computer cannot boot after making and saving system changes with BIOS
setup, you can restore BIOS optimal defaults by setting JP3 (see section 2.4.2).
It is strongly recommended that you should avoid changing the chipset’s defaults. Both AMI
and your system manufacturer have carefully set up these defaults that provide the best
performance and reliability.
4.2 Navigation Keys
The BIOS setup/utility uses a key-based navigation system called hot keys. Most of the BIOS
setup utility hot keys can be used at any time during the setup navigation process. These keys
include <F1>, <F2>, <Enter>, <ESC>, <Arrow> keys, and so on.
Note
Some of the navigation keys differ from one screen to another.
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34 AMI BIOS Setup Utility
Hot Keys
Description
Left/Right
The Left and Right <Arrow> keys allow you to select a setup screen.
Up/Down
The Up and Down <Arrow> keys allow you to select a setup screen or
sub-screen.
+ Plus/Minus
The Plus and Minus <Arrow> keys allow you to change the field value of a
particular setup item.
Tab
The <Tab> key allows you to select setup fields.
F1
The <F1> key allows you to display the General Help screen.
F2
The <F2> key allows you to Load Previous Values.
F3
The <F3> key allows you to Load Optimized Defaults.
F4
The <F4> key allows you to save any changes you have made and exit
Setup. Press the <F4> key to save your changes.
Esc
The <Esc> key allows you to discard any changes you have made and exit
the Setup. Press the <Esc> key to exit the setup without saving your
changes.
Enter
The <Enter> key allows you to display or change the setup option listed for a
particular setup item. The <Enter> key can also allow you to display the
setup sub- screens.
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AMI BIOS Setup Utility 35
4.3 Main Menu
When you first enter the setup utility, you will enter the Main setup screen. You can always
return to the Main setup screen by selecting the Main tab. System Time/Date can be set up as
described below. The Main BIOS setup screen is shown below.
BIOS and EC Information
Display BIOS and EC firmware information.
System Date/Time
Use this option to change the system time and date. Highlight System Time or System
Date using the <Arrow> keys. Enter new values through the keyboard. Press the <Tab>
key or the <Arrow> keys to move between fields. The date must be entered in MM/DD/YY
format. The time is entered in HH:MM:SS format.
Access Level
Display the access level of current user.
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36 AMI BIOS Setup Utility
4.4 Advanced Menu
The Advanced menu also allows users to set configuration of the CPU and other system
devices. You can select any of the items in the left frame of the screen to go to the sub menus:
► Hardware Monitor
► ACPI Settings
► Trusted Computing
► CPU Configuration
► SATA Configuration
► USB Configuration
► Utility Configuration
► Device Configuration (This option appears only if an I/O board is connected.)
For items marked with “”, please press <Enter> for more options.
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AMI BIOS Setup Utility 37
Hardware Monitor
This screen monitors hardware health status.
This screen displays the temperature of system and CPU, system voltages (VBAT, +3.3V,
+3.3V_SBY and +5V).
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38 AMI BIOS Setup Utility
ACPI Settings
You can use this screen to select options for the ACPI configuration, and change the value
of the selected option. A description of the selected item appears on the right side of the
screen.
ACPI Sleep State
Select the ACPI (Advanced Configuration and Power Interface) sleep state. Configuration
options are Suspend Disabled and S3 (Suspend to RAM). The default setting is S3
(Suspend to RAM); this option selects ACPI sleep state the system will enter when
suspend button is pressed.
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AMI BIOS Setup Utility 39
Trusted Computing
This screen provides function for specifying the TPM settings.
Security Device Support
Enable or disable BIOS support for security device. The default setting is Enable.
TPM Device
Enable or disable TPM device that supports TPM 1.2 specifications.
Current Status Information
Display current TPM status information.
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40 AMI BIOS Setup Utility
CPU Configuration
This screen shows the CPU Configuration and you can change the value of the selected
option.
Socket 0 CPU Information
Socket specific CPU information.
Intel Virtualization Technology
Enable or disable Intel Virtualization Technology. When enabled, a VMM (Virtual Machine
Mode) can utilize the additional hardware capabilities. It allows a platform to run multiple
operating systems and applications independently, hence enabling a computer system to
work as several virtual systems.
Turbo Mode
Enable or disable turbo mode. The default setting is Disabled.
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AMI BIOS Setup Utility 41
CPU Information
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42 AMI BIOS Setup Utility
SATA Configuration
In the SATA Configuration menu, you can see the current installed hardware in the SATA
ports. During system boot up, the BIOS automatically detects the presence of SATA
devices.
Chipset SATA
Enable or disable the SATA chipset.
Port 0~1
Enable or disable SATA port 0~1.
MiniCard Switch
Choose PCIE or mSATA for PCI-Express Mini Card (see section 2.5.16). The default is
mSATA.
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AMI BIOS Setup Utility 43
USB Configuration
USB Devices
Display all detected USB devices.
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44 AMI BIOS Setup Utility
Utility Configuration
BIOS Flash Utility
BIOS flash utility configuration. For more detailed information, please refer to Appendix B.
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AMI BIOS Setup Utility 45
Device Configuration
A description of selected item appears on the right side of the screen. For items marked
with “”, please press <Enter> for more options.
Module Device Configuration
This option appears only if an I/O board is installed. BIOS will auto-detect all supported
functions and you can use it to change settings on the I/O board. The PICO312 supports
the following I/O boards: AX93A00, AX93A01, AX93A02 and AX93A09.
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46 AMI BIOS Setup Utility
Module Device Configuration
This screen is available only if an I/O board with serial ports is connected. For items
marked with “”, please press <Enter> for more options.
AxiomType3 Super IO Configuration
Serial Port 1~2 Configuration
Set parameters related to serial port 1~2 on I/O board.
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AMI BIOS Setup Utility 47
Serial Port 1 Configuration
Serial Port
Enable or disable serial port 1 on I/O board. The optimal setting for base I/O address is
3F8h and for interrupt request address is IRQ4.
COM Port Type
Use this item to set RS-232/422/485 communication mode.
Terminal Mode
Enable terminal mode to enable the RS-422/485 termination resistor to enhance the
signal.
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48 AMI BIOS Setup Utility
Serial Port 2 Configuration
Serial Port
Enable or disable serial port 2 on I/O board. The optimal setting for base I/O address is
2F8h and for interrupt request address is IRQ3.
COM Port Type
Use this item to set RS-232/422/485 communication mode.
Terminal Mode
Enable or disable terminal mode.
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AMI BIOS Setup Utility 49
4.5 Chipset Menu
The Chipset menu allows users to change the advanced chipset settings. You can select any
of the items in the left frame of the screen to go to the sub menus:
► North Bridge
For items marked with “”, please press <Enter> for more options.
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50 AMI BIOS Setup Utility
North Bridge
This screen allows users to configure parameters of North Bridge chipset.
LVDS Panel Type
Select LVDS panel resolution; see the selection options in image above.
Memory Information
Show the information related to system memory.
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AMI BIOS Setup Utility 51
4.6 Security Menu
The Security menu allows users to change the security settings for the system.
Administrator Password
This item indicates whether an administrator password has been set (installed or
uninstalled).
User Password
This item indicates whether an user password has been set (installed or uninstalled).
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52 AMI BIOS Setup Utility
4.7 Boot Menu
The Boot menu allows users to change boot options of the system.
Setup Prompt Timeout
Number of seconds to wait for setup activation key. 65535(0xFFFF) means indefinite
waiting.
Bootup NumLock State
Use this item to select the power-on state for the keyboard NumLock.
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AMI BIOS Setup Utility 53
Quiet Boot
Select to display either POST output messages or a splash screen during boot-up.
Launch UEFI PXE OpROM policy
Control the execution of UEFI PXE OpROM.
Boot Option Priorities [Boot Option #1, …]
These are settings for boot priority. Specify the boot device priority sequence from the
available devices.
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54 AMI BIOS Setup Utility
Boot Mode
Use this item for boot mode settings.
- UEFI Boot: Select support to boot any UEFI-capable OS.
- Legacy Boot: Select support to boot non UEFI-capable OS that expects a legacy BIOS
interface.
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AMI BIOS Setup Utility 55
Note that the Primary IGFX Boot Display option appears only if Legacy Mode is selected,
see images below.
Note
The LVDS option can only be selected in Primary IGFX Boot Display.
Primary IGFX Boot Display
Select the video device which will be activated during POST (Power-On Self Test).
- With no I/O board connected, the default is LVDS.
- With I/O board connected, the default is display device on PICO312 (onboard HDMI or
onboard VGA).
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56 AMI BIOS Setup Utility
Secondary IGFX Boot Display
Select secondary display device.
- With no I/O board connected, the default is display device on PICO312 (onboard
HDMI or onboard VGA).
- With I/O board connected, the default is display device on I/O board (VGA on
AX93A00 or HDMI on AX93A01).
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AMI BIOS Setup Utility 57
4.8 Save & Exit Menu
The Save & Exit menu allows users to load your system configuration with optimal or fail-safe
default values.
Save Changes and Exit
When you have completed the system configuration changes, select this option to leave
Setup and return to Main Menu. Select Save Changes and Exit from the Save & Exit menu
and press <Enter>. Select Yes to save changes and exit.
Discard Changes and Exit
Select this option to quit Setup without making any permanent changes to the system
configuration and return to Main Menu. Select Discard Changes and Exit from the Save &
Exit menu and press <Enter>. Select Yes to discard changes and exit.
Save Changes and Reset
When you have completed the system configuration changes, select this option to leave
Setup and reboot the computer so the new system configuration parameters can take
effect. Select Save Changes and Reset from the Save & Exit menu and press <Enter>.
Select Yes to save changes and reset.
Discard Changes and Reset
Select this option to quit Setup without making any permanent changes to the system
configuration and reboot the computer. Select Discard Changes and Reset from the Save
& Exit menu and press <Enter>. Select Yes to discard changes and reset.
Save Changes
When you have completed the system configuration changes, select this option to save
changes. Select Save Changes from the Save & Exit menu and press <Enter>. Select Yes
to save changes.
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58 AMI BIOS Setup Utility
Discard Changes
Select this option to quit Setup without making any permanent changes to the system
configuration. Select Discard Changes from the Save & Exit menu and press <Enter>.
Select Yes to discard changes.
Restore Defaults
It automatically sets all Setup options to a complete set of default settings when you select
this option. Select Restore Defaults from the Save & Exit menu and press <Enter>.
Save as User Defaults
Select this option to save system configuration changes done so far as User Defaults.
Select Save as User Defaults from the Save & Exit menu and press <Enter>.
Restore User Defaults
It automatically sets all Setup options to a complete set of User Defaults when you select
this option. Select Restore User Defaults from the Save & Exit menu and press <Enter>.
Boot Override
Select a drive to immediately boot that device regardless of the current boot order.
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Watchdog Timer 59
Appendix A
Watchdog Timer
A.1 About Watchdog Timer
After the system stops working for a while, it can be auto-reset by the watchdog timer. The
integrated watchdog timer can be set up in the system reset mode by program.
A.2 How to Use Watchdog Timer
Assembly sample code :
mov dx,fa10 ; 5 seconds (Maximum is 65535 seconds; fill in
; 0xFA10 and 0xFA11 register, ex: 0xFA11=0x01,
; 0xFA10=0x68 means 360 seconds)
mov al,05
out dx,al
mov dx,fa12 ; Enable WDT
mov al,01
out dx,al
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60 Watchdog Timer
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BIOS Flash Utility 61
Appendix B
BIOS Flash Utility
The BIOS Flash utility is a new helpful function in BIOS setup program. With this function you
can easily update system BIOS without having to enter operating system. In this appendix you
may learn how to do it in just a few steps. Please read and follow the instructions below
carefully.
1. In your USB flash drive, create a new folder and name it “Axiomtek”, see figure below.
2. Copy BIOS ROM file (e.g. PICO312.005) to “Axiomtek” folder.
3. Insert the USB flash drive to your system.
4. Enter BIOS setup menu and go to Advanced\Utility Configuration. Select BIOS Flash
Utility and press <Enter>.
PICO312.005
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`62 BIOS Flash Utility
5. BIOS automatically detect all USB drive(s) attached to the system. In this example only
one USB drive is attached to the system. That’s why, you can see only one device is
displayed in figure below.
6. Select the USB drive containing BIOS ROM file you want to update using the <> or
<> key. Then press <Enter> to get into “Axiomtek” folder.
7. Now you can see the BIOS ROM file on the screen, press <Enter> to select.
8. Select Start to flash system BIOS option to begin updating procedure.
PICO312.005
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BIOS Flash Utility 63
9. Please wait while BIOS completes the entire flash update process: erase data, write new
data and verify data.
10. When you see the following figure, press <Enter> to finish the update process. After that
the system will shut down and restart immediately.
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