Page 1
Last Updated: September 24, 2021
COM-BT-A30
COM Express Module
User’s Manual 4th Ed
Page 2
Preface II
COM Express Module
COM-BT-A30
Copyright Notice
This document is copyrighted, 2021. All rights are reserved. The original manufacturer
reserves the right to make improvements to the products described in this manual at
any time without notice.
No part of this manual may be reproduced, copied, translated, or transmitted in any
form or by any means without the prior written permission of the original
manufacturer. Information provided in this manual is intended to be accurate and
reliable. However, the original manufacturer assumes no responsibility for its use, or for
any infringements upon the rights of third parties that may result from its use.
The material in this document is for product information only and is subject to change
without notice. While reasonable efforts have been made in the preparation of this
document to assure its accuracy, AAEON assumes no liabilities resulting from errors or
omissions in this document, or from the use of the information contained herein.
AAEON reserves the right to make changes in the product design without notice to its
users.
Page 3
Preface III
COM Express Module
COM-BT-A30
Acknowledgements
All other products’ name or trademarks are properties of their respective owners.
⚫ Microsoft Windows is a registered trademark of Microsoft Corp.
⚫ Intel® and Celeron® are registered trademarks of Intel Corporation
⚫ Intel Atom™ is a trademark of Intel Corporation
⚫ ITE is a trademark of Integrated Technology Express, Inc.
⚫ IBM, PC/AT, PS/2, and VGA are trademarks of International Business Machines
Corporation.
All other product names or trademarks are properties of their respective owners.
Page 4
Preface IV
COM Express Module
COM-BT-A30
Packing List
Before setting up your product, please make sure the following items have been
shipped:
Item
Quantity
⚫ COM-BT-A30
1
If any of these items are missing or damaged, please contact your distributor or sales
representative immediately.
Page 5
Preface V
COM Express Module
COM-BT-A30
About this Document
This User’s Manual contains all the essential information, such as detailed descriptions
and explanations on the product’s hardware and software features (if any), its
specifications, dimensions, jumper/connector settings/definitions, and driver installation
instructions (if any), to facilitate users in setting up their product.
Users may refer to the product page at AAEON.com for the latest version of this
document.
Page 6
Preface VI
COM Express Module
COM-BT-A30
Safety Precautions
Please read the following safety instructions carefully. It is advised that you keep this
manual for future references
1. All cautions and warnings on the device should be noted.
2. Make sure the power source matches the power rating of the device.
3. Position the power cord so that people cannot step on it. Do not place anything
over the power cord.
4. Always completely disconnect the power before working on the system’s
hardware.
5. No connections should be made when the system is powered as a sudden rush
of power may damage sensitive electronic components.
6. If the device is not to be used for a long time, disconnect it from the power
supply to avoid damage by transient over-voltage.
7. Always disconnect this device from any AC supply before cleaning.
8. While cleaning, use a damp cloth instead of liquid or spray detergents.
9. Make sure the device is installed near a power outlet and is easily accessible.
10. Keep this device away from humidity.
11. Place the device on a solid surface during installation to prevent falls
12. Do not cover the openings on the device to ensure optimal heat dissipation.
13. Watch out for high temperatures when the system is running.
14. Do not touch the heat sink or heat spreader when the system is running
15. Never pour any liquid into the openings. This could cause fire or electric shock.
16. As most electronic components are sensitive to static electrical charge, be sure to
ground yourself to prevent static charge when installing the internal components.
Use a grounding wrist strap and contain all electronic components in any
static-shielded containers.
Page 7
Preface VII
COM Express Module
COM-BT-A30
17. If any of the following situations arises, please the contact our service personnel:
i. Damaged power cord or plug
ii. Liquid intrusion to the device
iii. Exposure to moisture
iv. Device is not working as expected or in a manner as described in
this manual
v. The device is dropped or damaged
vi. Any obvious signs of damage displayed on the device
18. DO NOT LEAVE THIS DEVICE IN AN UNCONTROLLED ENVIRONMENT WITH
TEMPERATURES BEYOND THE DEVICE’S PERMITTED STORAGE TEMPERATURES
(SEE CHAPTER 1) TO PREVENT DAMAGE.
Page 8
Preface VIII
COM Express Module
COM-BT-A30
FCC Statement
This device complies with Part 15 FCC Rules. Operation is
subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any
interference received including interference that may cause
undesired operation.
Caution:
There is a danger of explosion if the battery is incorrectly replaced. Replace only with the
same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer’s instructions and your local government’s recycling or
disposal directives.
Attention:
Il y a un risque d’explosion si la batterie est remplacée de façon incorrecte.
Ne la remplacer qu’avec le même modèle ou équivalent recommandé par le constructeur.
Recycler les batteries usées en accord avec les instructions du fabricant et les directives
gouvernementales de recyclage.
Page 9
Preface IX
COM Express Module
COM-BT-A30
China RoHS Requirements (CN)
产品中有毒有害物质或元素名称及含量
AAEON Main Board/ Daughter Board/ Backplane
部件名称
有毒有害物质或元素
铅
(Pb) 汞 (Hg) 镉 (Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴二苯醚
(PBDE)
印刷电路板
及其电子组件
○ ○ ○ ○ ○
○
外部信号
连接器及线材
○ ○ ○ ○ ○
○
O：表示该有毒有害物质在该部件所有均质材料中的含量均在
SJ/T 11363-2006 标准规定的限量要求以下。
X：表示该有毒有害物质至少在该部件的某一均质材料中的含量超出
SJ/T 11363-2006 标准规定的限量要求。
备注：此产品所标示之环保使用期限，系指在一般正常使用状况下。
Page 10
Preface X
COM Express Module
COM-BT-A30
China RoHS Requirement (EN)
Poisonous or Hazardous Substances or Elements in Products
AAEON Main Board/ Daughter Board/ Backplane
Component
Poisonous or Hazardous Substances or Elements
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
Chromium
(Cr(VI))
Polybrominated
Biphenyls
(PBB)
Polybrominated
Diphenyl Ethers
(PBDE)
PCB & Other
Components
O O O O O
○
Wires &
Connectors
for External
Connections
O O O O O
O
O：The quantity of poisonous or hazardous substances or elements found in each of the
component's parts is below the SJ/T 11363-2006-stipulated requirement.
X: The quantity of poisonous or hazardous substances or elements found in at least one of the
component's parts is beyond the SJ/T 11363-2006-stipulated requirement.
Note: The Environment Friendly Use Period as labeled on this product is applicable under normal
usage only
Page 11
Preface XI
COM Express Module
COM-BT-A30
Table of Contents
Chapter 1 - Product Specifications.......................................................................................... 1
1.1 Specifications ............................................................................................................ 2
Chapter 2 – Hardware Information ....................................................................................... 4
2.1 Dimensions ............................................................................................................... 5
2.2 Jumpers and Connectors ....................................................................................... 7
2.3 List of Connectors .................................................................................................... 9
2.3.1 Carrier Board DP/HDMI Function, LVDS Function, AT & ATX Mode,
RCT Rest Setting (SW1) ................................................................................................ 10
2.3.2 COM Express ROW A/B Connector (CN1) ............................................. 10
2.3.3 COM Express ROW C/D Connector (CN2)............................................ 19
2.3.4 SPI Connector (CN5) ................................................................................. 27
2.3.5 LPC Connector (CN6) ............................................................................... 28
2.4 Block Diagram ........................................................................................................ 29
Chapter 3 - AMI BIOS Setup ................................................................................................ 30
3.1 System Test and Initialization ............................................................................... 31
3.2 AMI BIOS Setup ..................................................................................................... 32
3.3 Setup submenu: Main .......................................................................................... 33
3.4 Setup submenu: Advanced ................................................................................. 34
3.4.1 Advanced: CPU Configuration ................................................................ 35
3.4.2 Advanced: IDE Configuration .................................................................. 36
3.4.3 Advanced: USB Configuration ................................................................ 37
3.4.4 Advanced: On-Module H/W Monitor ................................................... 39
3.4.4.1 CPU Smart Fan control: Full mode .............................................. 40
3.4.4.2 CPU Smart Fan control: Manual Mode by PWM ......................41
3.4.4.3 CPU Smart Fan control: Auto Mode by PWM .......................... 42
3.4.5 Advanced: Dynamic Digital IO Configuration ..................................... 44
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Preface XII
COM Express Module
COM-BT-A30
3.4.6 Advanced: Power Management ............................................................. 45
3.4.7 Advanced: Trusted Computing ............................................................... 47
3.4.8 Advanced: SIO Configuration ................................................................. 50
3.4.8.1 Serial Port 9 Configuration ............................................................ 51
3.4.8.2 Serial Port 10 Configuration .......................................................... 52
3.5 Setup submenu: Chipset ...................................................................................... 53
3.5.1 Chipset: North Bridge ............................................................................... 54
3.5.1.1 North Bridge: Display Control Configuration ........................... 55
3.5.2 Chipset: South Bridge ............................................................................... 58
3.6 Setup submenu: Security ..................................................................................... 59
3.7 Setup submenu: Boot ........................................................................................... 60
3.7.1 BBS Priorities ................................................................................................ 61
3.8 Setup submenu: Save & Exit ............................................................................... 62
Chapter 4 – Drivers Installation ............................................................................................ 63
4.1 Driver Download/Installation .............................................................................. 64
Appendix A - Watchdog Timer Programming ................................................................... 66
A.1 Watchdog Timer Initial Program ........................................................................ 67
Appendix B –I/O Information ............................................................................................... 72
B.1 I/O Address Map ................................................................................................... 73
B.2 Memory Address Map ......................................................................................... 74
B.3 IRQ Mapping Chart ............................................................................................... 74
Appendix C – Programming Digital I/O............................................................................... 81
C.1 DIO Programming ................................................................................................. 82
C.2 Digital I/O Register ................................................................................................ 83
C.3 Digital I/O Sample Program ................................................................................ 84
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COM Express Module
COM-BT-A30
Chapter 1
Chapter 1 - Product Specifications
Page 14
Chapter 1 – Product Specifications 2
COM Express Module
COM-BT-A30
1.1 Specifications
System
Form Factor
COM Express Compact Size, Type 6
CPU
Onboard Intel® Atom™/ Celeron® SoC
CPU Frequency
Up to 2.0 GHz (Celeron J1900)
Chipset
Intel® Atom™/ Celeron® SoC
Memory Type
DDR3L 1066/1333 MHz SODIMM x 1
Max. Memory Capacity
8 GB
BIOS
AMI BIOS
Wake on LAN
Yes
Watchdog Timer
255 Levels
Power Requirement
Standard: +12V
Power Supply Type
AT/ ATX
Power Consumption (Typical)
0.92A at 12V, full load, J1900
0.48A at 12V, full load, N2807
Dimension (L x W)
3.74" x 3.74" (95mm x 95mm)
Operating Temperature
32°F ~ 140°F (0°C ~ 60°C)
-40°F ~ 185°F (-40°C ~ 85°C) optional
Storage Temperature
-40°F ~ 185°F (-40°C ~ 85°C)
Operating Humidity
0% ~ 90% relative humidity, non-condensing
MTBF (Hours)
189,243
Certification
CE/FCC Class A
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Chapter 1 – Product Specifications 3
COM Express Module
COM-BT-A30
Display
VGA/LCD Controller
Intel® HD Graphics
Video Output
Dual Display:
Single/Dual Channel LVDS (18/24-bit) or eDP
VGA, DDI (up to 2 x DDI shared with LVDS/eDP)
I/O
Ethernet
Intel® i211AT, Gigabit Ethernet x 1
Audio
High Definition Audio Interface
USB Port
USB2.0 x 7
USB3.2 Gen 1 x 1
Serial Port
2-Wire UART (Tx/Rx) x 2
HDD Interface
SATA II (3.0 Gbps) x 2
Expansion
PCIe 2.0 [x1] x 3 (up to 3 devices)
LPC Bus x 1
SMbus x 1
I2C x 1
GPIO
GPIO 8-bit
Onboard Storage
—
TPM
—
Page 16
COM Express Module
COM-BT-A30
Chapter 2
Chapter 2 – Hardware Information
Page 17
Chapter 2 – Hardware Information 5
COM Express Module COM-BT-A30
2.1 Dimensions
Component Side
Page 18
Chapter 2 – Hardware Information 6
COM Express Module COM-BT-A30
Solder Side
With Heat spreader
Page 19
Chapter 2 – Hardware Information 7
COM Express Module COM-BT-A30
2.2 Jumpers and Connectors
Component Side
Page 20
Chapter 2 – Hardware Information 8
COM Express Module COM-BT-A30
Solder Side
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Chapter 2 – Hardware Information 9
COM Express Module COM-BT-A30
2.3 List of Connectors
Please refer to the table below for all of the board’s jumpers that you can configure for
your application
Label
Function
SW1
1. Carrier Board DP/HDMI Function
2. LVDS Function
3. AT & ATX mode
4. RCT Rest setting
BAT1
RTC Battery
CN1
ROW A/B
CN2
ROW C/D
CN5
SPI Connector
CN6
LPC Connector
DIMM1
DDR3L Socket
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Chapter 2 – Hardware Information 10
COM Express Module COM-BT-A30
2.3.1 Carrier Board DP/HDMI Function, LVDS Function, AT & ATX Mode, RCT Rest Setting (SW1)
OFF
ON
1
DP/HDMI[1](Default)
eDP on MB(Optional)
2
DP/HDMI[2](Optional)
LVDS(Default)
3
ATX (Default)
AT
4
Normal(Default)
Clear CMOS
2.3.2 COM Express ROW A/B Connector (CN1)
Row A
Pin
COMe 2.1 SPEC Type 6
COM-BT Signal
A1
GND
GND
A2
GBE0_MDI3-
GBE0_MDI3-
A3
GBE0_MDI3+
GBE0_MDI3+
A4
GBE0_LNIK100#
GBE0_LNIK100#
A5
GBE0_LNIK1000#
GBE0_LNIK1000#
A6
GBE0_MDI2-
GBE0_MDI2-
A7
GBE0_MDI2+
GBE0_MDI2+
A8
GBE0_LINK#
GBE0_LINK#
A9
GBE0_MDI1-
GBE0_MDI1-
A10
GBE0_MDI1+
GBE0_MDI1+
A11
GND
GND
A12
GBE0_MDI0-
GBE0_MDI0-
A13
GBE0_MDI0+
GBE0_MDI0+
A14
GBE0_CTREF
GBE0_CTREF
Page 23
Chapter 2 – Hardware Information 11
COM Express Module COM-BT-A30
A15
SUS_S3#
SUS_S3#
A16
SATA0_TX+
SATA0_TX+
A17
SATA0_TX-
SATA0_TX-
A18
SUS_S4#
SUS_S4#
A19
SATA0_RX+
SATA0_RX+
A20
SATA0_RX-
SATA0_RX-
A21
GND
GND
A22
SATA2_TX+
NC
A23
SATA2_TX-
NC
A24
SUS_S5#
SUS_S5#
A25
SATA2_RX+
NC
A26
SATA2_RX-
NC
A27
BATLOW#
BATLOW#
A28
(S)ATA_ACT#
(S)ATA_ACT#
A29
AC/HDA_SYNC
AC/HDA_SYNC
A30
AC/HDA_RST#
AC/HDA_RST#
A31
GND
GND
A32
AC/HDA_BITCLK
AC/HDA_BITCLK
A33
AC/HDA_SDOUT
AC/HDA_SDOUT
A34
BIOS_DIS0#
BIOS_DIS0#
A35
THRMTRIP#
THRMTRIP#
A36
USB6-
USB6-
A37
USB6+
USB6+
A38
USB_6_7_OC#
USB_6_7_OC#
A39
USB4-
USB4-
A40
USB4+
USB4+
A41
GND
GND
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Chapter 2 – Hardware Information 12
COM Express Module COM-BT-A30
A42
USB2-
USB2-
A43
USB2+
USB2+
A44
USB_2_3_OC#
USB_2_3_OC#
A45
USB0-
USB0-
A46
USB0+
USB0+
A47
VCC_RTC
VCC_RTC
A48
EXCD0_PERST#
EXCD0_PERST#
A49
EXCD0_CPPE#
EXCD0_CPPE#
A50
LPC_SERIRQ
LPC_SERIRQ
A51
GND
GND
A52
PCIE_TX5+
NC
A53
PCIE_TX5-
NC
A54
GPI0
GPI0
A55
PCIE_TX4+
NC
A56
PCIE_TX4-
NC
A57
GND
GND
A58
PCIE_TX3+
PCIE_TX3+
A59
PCIE_TX3-
PCIE_TX3-
A60
GND
GND
A61
PCIE_TX2+
PCIE_TX2+
A62
PCIE_TX2-
PCIE_TX2-
A63
GPI1
GPI1
A64
PCIE_TX1+
PCIE_TX1+
A65
PCIE_TX1-
PCIE_TX1-
A66
GND
GND
A67
GPI2
GPI2
A68
PCIE_TX0+
PCIE_TX0+
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Chapter 2 – Hardware Information 13
COM Express Module COM-BT-A30
A69
PCIE_TX0-
PCIE_TX0-
A70
GND
GND
A71
LVDS_A0+
LVDS_A0+
A72
LVDS_A0-
LVDS_A0-
A73
LVDS_A1+
LVDS_A1+
A74
LVDS_A1-
LVDS_A1-
A75
LVDS_A2+
LVDS_A2+
A76
LVDS_A2-
LVDS_A2-
A77
LVDS_VDD_EN
LVDS_VDD_EN
A78
LVDS_A3+
LVDS_A3+
A79
LVDS_A3-
LVDS_A3-
A80
GND
GND
A81
LVDS_A_CK+
LVDS_A_CK+
A82
LVDS_A_CK-
LVDS_A_CK-
A83
LVDS_I2C_CK
LVDS_I2C_CK
A84
LVDS_I2C_DAT
LVDS_I2C_DAT
A85
GPI3
GPI3
A86
RSVD
NC
A87
RSVD
NC
A88
PCIE_CLK_REF+
PCIE_CLK_REF+
A89
PCIE_CLK_REF-
PCIE_CLK_REF-
A90
GND
GND
A91
SPI_POWER
SPI_POWER
A92
SPI_MISO
SPI_MISO
A93
GPO0
GPO0
A94
SPI_CLK
SPI_CLK
A95
SPI_MOSI
SPI_MOSI
Page 26
Chapter 2 – Hardware Information 14
COM Express Module COM-BT-A30
A96
TPM_PP
TPM_PP
A97
TYPE10#
NC
A98
SER0_TX
SER0_TX
A99
SER0_RX
SER0_RX
A100
GND
GND
A101
SER1_TX
SER1_TX
A102
SER1_RX
SER1_RX
A103
LID#
LID#
A104
VCC_12V
VCC_12V
A105
VCC_12V
VCC_12V
A106
VCC_12V
VCC_12V
A107
VCC_12V
VCC_12V
A108
VCC_12V
VCC_12V
A109
VCC_12V
VCC_12V
A110
GND
GND
Row B
Pin
COMe 2.1 SPEC Type 6
COM-BT Signal
B1
GND
GND
B2
GBE0_ACT#
GBE0_ACT#
B3
LPC_FRAME#
LPC_FRAME#
B4
LPC_AD0
LPC_AD0
B5
LPC_AD1
LPC_AD1
B6
LPC_AD2
LPC_AD2
B7
LPC_AD3
LPC_AD3
B8
LPC_DRQ0#
NC
B9
LPC_DRQ1#
NC
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Chapter 2 – Hardware Information 15
COM Express Module COM-BT-A30
B10
LPC_CLK
LPC_CLK
B11
GND
GND
B12
PWRBTN#
PWRBTN#
B13
SMB_CK
SMB_CK
B14
SMB_DAT
SMB_DAT
B15
SMB_ALERT#
SMB_ALERT#
B16
SATA1_TX+
SATA1_TX+
B17
SATA1_TX-
SATA1_TX-
B18
SUS_STAT#
SUS_STAT#
B19
SATA1_RX+
SATA1_RX+
B20
SATA1_RX-
SATA1_RX-
B21
GND
GND
B22
SATA3_TX+
NC
B23
SATA3_TX-
NC
B24
PWR_OK
PWR_OK
B25
SATA3_RX+
NC
B26
SATA3_RX-
NC
B27
WDT
WDT
B28
AC/HDA_SDIN2
AC/HDA_SDIN2
B29
AC/HDA_SDIN1
AC/HDA_SDIN1
B30
AC/HDA_SDIN0
AC/HDA_SDIN0
B31
GND
GND
B32
SPKR
SPKR
B33
I2C_CK
I2C_CK
B34
I2C_DAT
I2C_DAT
B35
THRM#
THRM#
B36
USB7-
NC
Page 28
Chapter 2 – Hardware Information 16
COM Express Module COM-BT-A30
B37
USB7+
NC
B38
USB_4_5_OC#
USB_4_5_OC#
B39
USB5-
USB5-
B40
USB5+
USB5+
B41
GND
GND
B42
USB3-
USB3-
B43
USB3+
USB3+
B44
USB_0_1_OC#
USB_0_1_OC#
B45
USB1-
USB1-
B46
USB1+
USB1+
B47
EXCD1_PERST#
EXCD1_PERST#
B48
EXCD1_CPPE#
EXCD1_CPPE#
B49
SYS_RESET#
SYS_RESET#
B50
CB_RESET#
CB_RESET#
B51
GND
GND
B52
PCIE_RX5+
NC
B53
PCIE_RX5-
NC
B54
GPO1
GPO1
B55
PCIE_RX4+
NC
B56
PCIE_RX4-
NC
B57
GPO2
GPO2
B58
PCIE_RX3+
PCIE_RX3+
B59
PCIE_RX3-
PCIE_RX3-
B60
GND
GND
B61
PCIE_RX2+
PCIE_RX2+
B62
PCIE_RX2-
PCIE_RX2-
B63
GPO3
GPO3
Page 29
Chapter 2 – Hardware Information 17
COM Express Module COM-BT-A30
B64
PCIE_RX1+
PCIE_RX1+
B65
PCIE_RX1-
PCIE_RX1-
B66
WAKE0#
WAKE0#
B67
WAKE1#
WAKE1#
B68
PCIE_RX0+
PCIE_RX0+
B69
PCIE_RX0-
PCIE_RX0-
B70
GND
GND
B71
LVDS_B0+
LVDS_B0+
B72
LVDS_B0-
LVDS_B0-
B73
LVDS_B1+
LVDS_B1+
B74
LVDS_B1-
LVDS_B1-
B75
LVDS_B2+
LVDS_B2+
B76
LVDS_B2-
LVDS_B2-
B77
LVDS_B3+
LVDS_B3+
B78
LVDS_B3-
LVDS_B3-
B79
LVDS_BKLT_EN
LVDS_BKLT_EN
B80
GND
GND
B81
LVDS_B_CK+
LVDS_B_CK+
B82
LVDS_B_CK-
LVDS_B_CK-
B83
LVDS_BKLT_CTRL
LVDS_BKLT_CTRL
B84
VCC_5V_SBY
VCC_5V_SBY
B85
VCC_5V_SBY
VCC_5V_SBY
B86
VCC_5V_SBY
VCC_5V_SBY
B87
VCC_5V_SBY
VCC_5V_SBY
B88
BIOS_DIS1#
BIOS_DIS1#
B89
VGA_RED
VGA_RED
B90
GND
GND
Page 30
Chapter 2 – Hardware Information 18
COM Express Module COM-BT-A30
B91
VGA_GRN
VGA_GRN
B92
VGA_BLU
VGA_BLU
B93
VGA_HSYNC
VGA_HSYNC
B94
VGA_VSYNC
VGA_VSYNC
B95
VGA_I2C_CK
VGA_I2C_CK
B96
VGA_I2C_DAT
VGA_I2C_DAT
B97
SPI_CS#
SPI_CS#
B98
RSVD
SMI#
B99
RSVD
SCI#
B100
GND
GND
B101
FAN_PWMOUT
FAN_PWMOUT
B102
FAN_TACHIN
FAN_TACHIN
B103
SLEEP#
SLEEP#
B104
VCC_12V
VCC_12V
B105
VCC_12V
VCC_12V
B106
VCC_12V
VCC_12V
B107
VCC_12V
VCC_12V
B108
VCC_12V
VCC_12V
B109
VCC_12V
VCC_12V
B110
GND
GND
Page 31
Chapter 2 – Hardware Information 19
COM Express Module COM-BT-A30
2.3.3 COM Express ROW C/D Connector (CN2)
Row C
Pin
COMe 2.1 SPEC Type 6
COM-BT Signal
C1
GND
GND
C2
GND
GND
C3
USB_SSRX0-
USB_SSRX0-
C4
USB_SSRX0+
USB_SSRX0+
C5
GND
GND
C6
USB_SSRX1-
NC
C7
USB_SSRX1+
NC
C8
GND
GND
C9
USB_SSRX2-
NC
C10
USB_SSRX2+
NC
C11
GND
GND
C12
USB_SSRX3-
NC
C13
USB_SSRX3+
NC
C14
GND
GND
C15
DDI1_PAIR6+
NC
C16
DDI1_PAIR6-
NC
C17
RSVD
NC
C18
RSVD
NC
C19
PCIE_RX6+
NC
C20
PCIE_RX6-
NC
C21
GND
GND
C22
PCIE_RX7+
NC
C23
PCIE_RX7-
NC
Page 32
Chapter 2 – Hardware Information 20
COM Express Module COM-BT-A30
C24
DDI1_HPD
DDI1_HPD
C25
DDI1_PAIR4+
NC
C26
DDI1_PAIR4-
NC
C27
RSVD
NC
C28
RSVD
NC
C29
DDI1_PAIR5+
NC
C30
DDI1_PAIR5-
NC
C31
GND
GND
C32
DDI2_CTRLCLK_AUX+
DDI2_CTRLCLK_AUX+
C33
DDI2_CTRLDATA_AUX-
DDI2_CTRLDATA_AUX-
C34
DDI2_DDC_AUX_SEL
DDI2_DDC_AUX_SEL
C35
RSVD
NC
C36
DDI3_CTRLCLK_AUX+
NC
C37
DDI3_CTRLDATA_AUX-
NC
C38
DDI3_DDC_AUX_SEL
NC
C39
DDI3_PAIR0+
NC
C40
DDI3_PAIR0-
NC
C41
GND
GND
C42
DDI3_PAIR1+
NC
C43
DDI3_PAIR1-
NC
C44
DDI3_HPD
NC
C45
RSVD
NC
C46
DDI3_PAIR2+
NC
C47
DDI3_PAIR2-
NC
C48
RSVD
NC
C49
DDI3_PAIR3+
NC
C50
DDI3_PAIR3-
NC
Page 33
Chapter 2 – Hardware Information 21
COM Express Module COM-BT-A30
C51
GND
GND
C52
PEG_RX0+
NC
C53
PEG_RX0-
NC
C54
TYPE0#
NC
C55
PEG_RX1+
NC
C56
PEG_RX1-
NC
C57
TYPE1#
NC
C58
PEG_RX2+
NC
C59
PEG_RX2-
NC
C60
GND
GND
C61
PEG_RX3+
NC
C62
PEG_RX3-
NC
C63
RSVD
NC
C64
RSVD
NC
C65
PEG_RX4+
NC
C66
PEG_RX4-
NC
C67
RSVD
NC
C68
PEG_RX5+
NC
C69
PEG_RX5-
NC
C70
GND
GND
C71
PEG_RX6+
NC
C72
PEG_RX6-
NC
C73
GND
GND
C74
PEG_RX7+
NC
C75
PEG_RX7-
NC
C76
GND
GND
C77
RSVD
NC
Page 34
Chapter 2 – Hardware Information 22
COM Express Module COM-BT-A30
C78
PEG_RX8+
NC
C79
PEG_RX8-
NC
C80
GND
GND
C81
PEG_RX9+
NC
C82
PEG_RX9-
NC
C83
RSVD
NC
C84
GND
GND
C85
PEG_RX10+
NC
C86
PEG_RX10-
NC
C87
GND
GND
C88
PEG_RX11+
NC
C89
PEG_RX11-
NC
C90
GND
GND
C91
PEG_RX12+
NC
C92
PEG_RX12-
NC
C93
GND
GND
C94
PEG_RX13+
NC
C95
PEG_RX13-
NC
C96
GND
GND
C97
RSVD
NC
C98
PEG_RX14+
NC
C99
PEG_RX14-
NC
C100
GND
GND
C101
PEG_RX15+
NC
C102
PEG_RX15-
NC
C103
GND
GND
C104
VCC_12V
VCC_12V
Page 35
Chapter 2 – Hardware Information 23
COM Express Module COM-BT-A30
C105
VCC_12V
VCC_12V
C106
VCC_12V
VCC_12V
C107
VCC_12V
VCC_12V
C108
VCC_12V
VCC_12V
C109
VCC_12V
VCC_12V
C110
GND
GND
Row D
Pin
COMe 2.1 SPEC Type 6
COM-BT Signal
D1
GND
GND
D2
GND
GND
D3
USB_SSTX0-
USB_SSTX0-
D4
USB_SSTX0+
USB_SSTX0+
D5
GND
GND
D6
USB_SSTX1-
NC
D7
USB_SSTX1+
NC
D8
GND
GND
D9
USB_SSTX2-
NC
D10
USB_SSTX2+
NC
D11
GND
GND
D12
USB_SSTX3-
NC
D13
USB_SSTX3+
NC
D14
GND
GND
D15
DDI1_CTRLCLK_AUX+
DDI1_CTRLCLK_AUX+
D16
DDI1_CTRLDATA_AUX-
DDI1_CTRLDATA_AUX-
D17
RSVD
NC
D18
RSVD
NC
Page 36
Chapter 2 – Hardware Information 24
COM Express Module COM-BT-A30
D19
PCIE_TX6+
NC
D20
PCIE_TX6-
NC
D21
GND
GND
D22
PCIE_TX7+
NC
D23
PCIE_TX7-
NC
D24
RSVD
NC
D25
RSVD
NC
D26
DDI1_PAIR0+
DDI1_PAIR0+
D27
DDI1_PAIR0-
DDI1_PAIR0-
D28
RSVD
NC
D29
DDI1_PAIR1+
DDI1_PAIR1+
D30
DDI1_PAIR1-
DDI1_PAIR1-
D31
GND
GND
D32
DDI1_PAIR2+
DDI1_PAIR2+
D33
DDI1_PAIR2-
DDI1_PAIR2-
D34
DDI1_DDC_AUX_SEL
DDI1_DDC_AUX_SEL
D35
RSVD
NC
D36
DDI1_PAIR3+
DDI1_PAIR3+
D37
DDI1_PAIR3-
DDI1_PAIR3-
D38
RSVD
NC
D39
DDI2_PAIR0+
DDI2_PAIR0+
D40
DDI2_PAIR0-
DDI2_PAIR0-
D41
GND
GND
D42
DDI2_PAIR1+
DDI2_PAIR1+
D43
DDI2_PAIR1-
DDI2_PAIR1-
D44
DDI2_HPD
DDI2_HPD
D45
RSVD
NC
Page 37
Chapter 2 – Hardware Information 25
COM Express Module COM-BT-A30
D46
DDI2_PAIR2+
DDI2_PAIR2+
D47
DDI2_PAIR2-
DDI2_PAIR2-
D48
RSVD
NC
D49
DDI2_PAIR3+
DDI2_PAIR3+
D50
DDI2_PAIR3-
DDI2_PAIR3-
D51
GND
GND
D52
PEG_TX0+
NC
D53
PEG_TX0-
NC
D54
PEG_LANE_RV#
NC
D55
PEG_TX1+
NC
D56
PEG_TX1-
NC
D57
TYPE2#
TYPE2#
D58
PEG_TX2+
NC
D59
PEG_TX2-
NC
D60
GND
GND
D61
PEG_TX3+
NC
D62
PEG_TX3-
NC
D63
RSVD
NC
D64
RSVD
NC
D65
PEG_TX4+
NC
D66
PEG_TX4-
NC
D67
GND
GND
D68
PEG_TX5+
NC
D69
PEG_TX5-
NC
D70
GND
GND
D71
PEG_TX6+
NC
D72
PEG_TX6-
NC
Page 38
Chapter 2 – Hardware Information 26
COM Express Module COM-BT-A30
D73
GND
GND
D74
PEG_TX7+
NC
D75
PEG_TX7-
NC
D76
GND
GND
D77
RSVD
NC
D78
PEG_TX8+
NC
D79
PEG_TX8-
NC
D80
GND
GND
D81
PEG_TX9+
NC
D82
PEG_TX9-
NC
D83
RSVD
NC
D84
GND
GND
D85
PEG_TX10+
NC
D86
PEG_TX10-
NC
D87
GND
GND
D88
PEG_TX11+
NC
D89
PEG_TX11-
NC
D90
GND
GND
D91
PEG_TX12+
NC
D92
PEG_TX12-
NC
D93
GND
GND
D94
PEG_TX13+
NC
D95
PEG_TX13-
NC
D96
GND
GND
D97
RSVD
NC
D98
PEG_TX14+
NC
D99
PEG_TX14-
NC
Page 39
Chapter 2 – Hardware Information 27
COM Express Module COM-BT-A30
D100
GND
GND
D101
PEG_TX15+
NC
D102
PEG_TX15-
NC
D103
GND
GND
D104
VCC_12V
VCC_12V
D105
VCC_12V
VCC_12V
D106
VCC_12V
VCC_12V
D107
VCC_12V
VCC_12V
D108
VCC_12V
VCC_12V
D109
VCC_12V
VCC_12V
D110
GND
GND
2.3.4 SPI Connector (CN5)
Pin
Signal
Pin
Signal
1
SPI_SO_F
5
SPI_SI_F
2
GND
6
SPI_CE0#_F
3
SPI_CLK_F
7
SPI_CE1#_F
4
+V3.3A_SPI
Page 40
Chapter 2 – Hardware Information 28
COM Express Module COM-BT-A30
2.3.5 LPC Connector (CN6)
Pin
Signal
Pin
Signal
1
LPC_AD0
7
BUF_PLT_RST#
2
LPC_AD1
8
GND
3
LPC_AD2
9
PCI_CLK_SIO
4
LPC_AD3
10
NC
5
+V3.3S
11
NC
6
LPC_FRAME#
12
INT_SERIRQ
Page 41
Chapter 2 – Hardware Information 29
COM Express Module COM-BT-A30
2.4 Block Diagram
Page 42
COM Express Module
COM-BT-A30
Chapter 3
Chapter 3 - AMI BIOS Setup
Page 43
Chapter 3 – AMI BIOS Setup 31
COM Express Module
COM-BT-A30
3.1 System Test and Initialization
These routines test and initialize board hardware. If the routines encounter an error
during the tests, you will either hear a few short beeps or see an error message on the
screen. There are two kinds of errors: fatal and non-fatal. The system can usually
continue the boot up sequence with non-fatal errors.
System configuration verification
These routines check the current system configuration stored in the CMOS memory
and BIOS NVRAM. If system configuration is not found or system configuration data
error is detected, system will load optimized default and re-boot with this default
system configuration automatically.
There are four situations in which you will need to setup system configuration:
1. You are starting your system for the first time
2. You have changed the hardware attached to your system
3. The system configuration is reset by Clear-CMOS jumper
4. The CMOS memory has lost power and the configuration information has been
erased.
The COM-BT-A30 CMOS memory has an integral lithium battery backup for data
retention. However, you will need to replace the complete unit when it finally runs
down.
Page 44
Chapter 3 – AMI BIOS Setup 32
COM Express Module
COM-BT-A30
3.2 AMI BIOS Setup
AMI BIOS ROM has a built-in Setup program that allows users to modify the basic
system configuration. This type of information is stored in battery-backed CMOS RAM
and BIOS NVRAM so that it retains the Setup information when the power is turned off.
Entering Setup
Power on the computer and press <Del>or <ESC> immediately. This will allow you to
enter Setup.
Main – Date and time can be set here. Press <Tab> to switch between date elements
Advanced – Enable/ Disable boot option for legacy network devices
Chipset – For hosting bridge parameters
Boot – Enable/ Disable quiet Boot Option
Security – The setup administrator password can be set here
Save & Exit –Save your changes and exit the program
Page 45
Chapter 3 – AMI BIOS Setup 33
COM Express Module
COM-BT-A30
3.3 Setup submenu: Main
Page 46
Chapter 3 – AMI BIOS Setup 34
COM Express Module
COM-BT-A30
3.4 Setup submenu: Advanced
Page 47
Chapter 3 – AMI BIOS Setup 35
COM Express Module
COM-BT-A30
3.4.1 Advanced: CPU Configuration
Options summary:
Intel Virtualization
Technology
Disabled
Enabled
Optimal Default, Failsafe Default
When enabled, a VMM can utilize the additional hardware capabilities provided by
Vanderpool Technology.
EIST
Disabled
Enabled
Optimal Default, Failsafe Default
Enable/Disable Intel SpeedStep.
Page 48
Chapter 3 – AMI BIOS Setup 36
COM Express Module
COM-BT-A30
3.4.2 Advanced: IDE Configuration
Options summary:
SATA Mode
IDE Mode
AHCI Mode
Optimal Default, Failsafe Default
Select IDE / AHCI.
Page 49
Chapter 3 – AMI BIOS Setup 37
COM Express Module
COM-BT-A30
3.4.3 Advanced: USB Configuration
Options summary:
Legacy USB Support
Enabled
Optimal Default, Failsafe Default
Disabled
Auto
Enables Legacy USB support.
AUTO option disables legacy support if no USB devices are connected. DISABLE option
will keep USB devices available only for EFI applications.
Device Name (Emulation
Type)
Auto
Optimal Default, Failsafe Default
Floppy
Forced FDD
Hard Disk
CDROM
Page 50
Chapter 3 – AMI BIOS Setup 38
COM Express Module
COM-BT-A30
If Auto. USB devices less than 530MB will be emulated as Floppy and remaining as
Floppy and remaining as hard drive. Forced FDD option can be used to force a HDD
formatted drive to boot as FDD(Ex. ZIP drive)
Page 51
Chapter 3 – AMI BIOS Setup 39
COM Express Module
COM-BT-A30
3.4.4 Advanced: On-Module H/W Monitor
Options summary:
CPU Smart Fan Mode Configuration
Page 52
Chapter 3 – AMI BIOS Setup 40
COM Express Module
COM-BT-A30
3.4.4.1 CPU Smart Fan control: Full mode
Page 53
Chapter 3 – AMI BIOS Setup 41
COM Express Module
COM-BT-A30
3.4.4.2 CPU Smart Fan control: Manual Mode by PWM
Options summary:
Manual Setting
70
Optimal Default, Failsafe Default
Set Fan at fixed Duty-Cycle Min=0 Max=100 Please input Dec number.
Page 54
Chapter 3 – AMI BIOS Setup 42
COM Express Module
COM-BT-A30
3.4.4.3 CPU Smart Fan control: Auto Mode by PWM
Options summary:
Temperature of
Start
30
Optimal Default, Failsafe Default
Temperature of Start
Temperature of Off
20
Optimal Default, Failsafe Default
Temperature of Off
Start PWM
40
Optimal Default, Failsafe Default
Start PWM
Slope (PWM)
0 (PWM)
1 (PWM)
Optimal Default, Failsafe Default
2 (PWM)
4 (PWM)
Page 55
Chapter 3 – AMI BIOS Setup 43
COM Express Module
COM-BT-A30
8 (PWM)
16 (PWM)
32 (PWM)
64 (PWM)
Slope (PWM)
Page 56
Chapter 3 – AMI BIOS Setup 44
COM Express Module
COM-BT-A30
3.4.5 Advanced: Dynamic Digital IO Configuration
Options summary:
GPI* Direction
Output
Input
Optimal Default, Failsafe Default
Set GPIO as Input or Output
GPO* Direction
Output
Optimal Default, Failsafe Default
Input
Set GPIO as Input or Output
Output Level
Hi
Optimal Default, Failsafe Default
Low
Set GPIO Output as Hi or Low.
Page 57
Chapter 3 – AMI BIOS Setup 45
COM Express Module
COM-BT-A30
3.4.6 Advanced: Power Management
Options summary:
Power Mode
ATX Type
Optimal Default, Failsafe Default
AT Type
Select power supply mode.
Restore on Power
Loss
Last State
Optimal Default, Failsafe Default
Always On
Always Off
Power failure feature / AC Power Loss feature.
RTC wake system
from S5
Disabled
Optimal Default, Failsafe Default
Fixed Time
Dynamic Time
Page 58
Chapter 3 – AMI BIOS Setup 46
COM Express Module
COM-BT-A30
Fixed Time : System will wake on the hr::min::sec specified.
Dynamic Time : System will wake on the current time + Increase minute(s).
Page 59
Chapter 3 – AMI BIOS Setup 47
COM Express Module
COM-BT-A30
3.4.7 Advanced: Trusted Computing
Options summary:
Security Device
Support
Disable
Optimal Default, Failsafe Default
Enable
Enables or Disables BIOS support for security device.
O.S. will not show Security Device. TCG EFI protocol and INT1A interface will not be
available.
Page 60
Chapter 3 – AMI BIOS Setup 48
COM Express Module
COM-BT-A30
Options summary:
Security Device
Support
Disable
Optimal Default, Failsafe Default
Enable
Enables or Disables BIOS support for security device.
O.S. will not show Security Device. TCG EFI protocol and INT1A interface will not be
available.
Pending operation
None
Optimal Default, Failsafe Default
TPM Clear
Schedule an Operation for the Security Device. Note : Your Computer will reboot
during restart in order to change State of Security Device.
Platform Hierarchy
Disable
Enable
Optimal Default, Failsafe Default
Platform Hierarchy HELP.
Storage Hierarchy
Disable
Page 61
Chapter 3 – AMI BIOS Setup 49
COM Express Module
COM-BT-A30
Enable
Optimal Default, Failsafe Default
Storage Hierarchy HELP.
Endorsement
Hierarchy
Disable
Enable
Optimal Default, Failsafe Default
Endorsement Hierarchy HELP.
Page 62
Chapter 3 – AMI BIOS Setup 50
COM Express Module
COM-BT-A30
3.4.8 Advanced: SIO Configuration
Page 63
Chapter 3 – AMI BIOS Setup 51
COM Express Module
COM-BT-A30
3.4.8.1 Serial Port 9 Configuration
Options summary:
Use This Device
Disabled
Enabled
Optimal Default, Failsafe Default
Enable or Disable this logical device.
Possible:
Use Automatic Settings
Optimal Default, Failsafe Default
IO=2D8h; IRQ=11; DMA;
IO=2C8h; IRQ=11; DMA;
Allows user to change Device’s Resource settings. New settings will be reflected on This
Setup Page after System restarts.
Page 64
Chapter 3 – AMI BIOS Setup 52
COM Express Module
COM-BT-A30
3.4.8.2 Serial Port 10 Configuration
Options summary:
Use This Device
Disabled
Enabled
Optimal Default, Failsafe Default
Enable or Disable this logical device.
Possible:
Use Automatic Settings
Optimal Default, Failsafe Default
IO=2C8h; IRQ=10; DMA;
IO=2D8h; IRQ=10; DMA;
Allows user to change Device’s Resource settings. New settings will be reflected on This
Setup Page after System restarts.
Page 65
Chapter 3 – AMI BIOS Setup 53
COM Express Module
COM-BT-A30
3.5 Setup submenu: Chipset
Page 66
Chapter 3 – AMI BIOS Setup 54
COM Express Module
COM-BT-A30
3.5.1 Chipset: North Bridge
Page 67
Chapter 3 – AMI BIOS Setup 55
COM Express Module
COM-BT-A30
3.5.1.1 North Bridge: Display Control Configuration
Options summary:
DVMT Pre-Allocated
64M
Optimal Default, Failsafe Default
96M 128M
160M …
512M
Select DVMT 5.0 Pre-Allocated (Fixed) Graphics Memory size used by the Internal
Graphics Device.
DVMT Total Gfx Mem
128MB
256MB
Optimal Default, Failsafe Default
Max Select DVMT 5.0 Total Graphics Memory size used by the Internal Graphics Device.
Page 68
Chapter 3 – AMI BIOS Setup 56
COM Express Module
COM-BT-A30
Primary IGFX Boot
Display
VBIOS Default
Optimal Default, Failsafe Default
CRT LVDS
DP/HDMI
Select the Video Device which will be activated during POST. This has no effect if
external graphics present. Secondary boot display selection will appear based on your
selection. VGA modes will be supported only on primary display
LVDS Panel Type
640x480, 60Hz
800x480, 60Hz
800x600, 60Hz
1024x600, 60Hz
1024x768, 60Hz
Optimal Default, Failsafe Default
1280x768, 60Hz
1280x1024, 60Hz
1366x768, 60Hz
1440x900, 60Hz
1600x1200, 60Hz
1920x1080, 60Hz
1920x1200, 60Hz
1280x800, 60Hz
1024x600, 60Hz
Select LCD panel used by Internal Graphics Device by selecting the appropriate setup
item.
Color Depth
24bit
Optimal Default, Failsafe Default
18bit 24bit or 18bit.
Page 69
Chapter 3 – AMI BIOS Setup 57
COM Express Module
COM-BT-A30
Panel Mode
Single Channel
Dual Channel
Optimal Default, Failsafe Default
Single Channel / Dual Channel.
Data enable polarity
Active Low
Optimal Default, Failsafe Default
Active High
Active High / Low .
LVDS Backlight Level
100%
90% 80%
Optimal Default, Failsafe Default
70% 60% 50% 40% 30% 20% 10% 0% Select Backlight brightness of LVDS.
LVDS Backlight Type
Normal
Optimal Default, Failsafe Default
Inverted
Select Backlight Control Type.
Page 70
Chapter 3 – AMI BIOS Setup 58
COM Express Module
COM-BT-A30
3.5.2 Chipset: South Bridge
Options summary:
XHCI Mode
Enabled
Optimal Default, Failsafe Default
Disabled
Mode of operation of xHCI controller.
Audio Controller
Enabled
Optimal Default, Failsafe Default
Disabled
Control Detection of the Azalia device.
Disabled = Azalia will be unconditionally disabled.
Enabled = Azalia will be unconditionally Enabled.
Auto = Azalia will be enabled if present disabled otherwise.
Page 71
Chapter 3 – AMI BIOS Setup 59
COM Express Module
COM-BT-A30
3.6 Setup submenu: Security
Change User/ Supervisor Password
You can install a Supervisor password, and if you install a supervisor password, you can
then install a user password. A user password does not provide access to many of the
features in the Setup utility.
If you highlight these items and press Enter, a dialog box appears which lets you enter a
password. You can enter no more than six letters or numbers. Press Enter after you
have typed in the password. A second dialog box asks you to retype the password for
confirmation. Press Enter after you have retyped it correctly. The password is
required at boot time, or when the user enters the Setup utility.
Removing the Password
Highlight this item and type in the current password. At the next dialog box press
Enter to disable password protection.
Page 72
Chapter 3 – AMI BIOS Setup 60
COM Express Module
COM-BT-A30
3.7 Setup submenu: Boot
Options summary:
Quiet Boot
Disabled
Enabled
Default
Enables or Disables Quiet Boot option.
Option ROM Messages
Force BIOS
Default
Keep Current
Set display mode for Option ROM
Launch PXE OpROM
Disabled
Default
Enabled
Controls the execution of LAN PXE OpROM.
Page 73
Chapter 3 – AMI BIOS Setup 61
COM Express Module
COM-BT-A30
3.7.1 BBS Priorities
Page 74
Chapter 3 – AMI BIOS Setup 62
COM Express Module
COM-BT-A30
3.8 Setup submenu: Save & Exit
Page 75
COM Express Module
COM-BT-A30
Chapter 4
Chapter 4 – Drivers Installation
Page 76
Chapter 4 – Driver Installation 64
COM Express Module
COM-BT-A30
4.1 Driver Download/Installation
Drivers for the COM-BT-A30 can be downloaded from the product page on the
AAEON website by following this link:
https://www.aaeon.com/en/p/modulescom-express-modules-com-bt
Download the driver(s) you need and follow the steps below to install them.
Step 1 – Install Chipset Driver
1. Open the Step1 - Chipset folder followed by SetupChipset.exe
2. Follow the instructions
3. Drivers will be installed automatically
Step 2 – Install Graphics Driver
1. Open the Step2 - Graphics folder and select your OS
2. Open the Setup.exe file in the folder
3. Follow the instructions
4. Drivers will be installed automatically
Step 3 – Install LAN Driver
1. Open the Step3 - Network folder and select your OS
2. Open the 19.1_20140410.exe file in the folder
3. Follow the instructions
4. Drivers will be installed automatically
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Step 4 – Install xHCI Driver
1. Open the STEP4 - xHCI folder
2. Open the Setup.exe file in the folder
3. Follow the instructions
4. Drivers will be installed automatically
Step 5 – Install Intel Sideband Fabric Device Driver
1. Open the Step5 – Intel Sideband Fabric Device folder
2. Open the Setup.exe file in the folder
3. Follow the instructions
4. Drivers will be installed automatically
Step 6 – Install TPM Driver
1. Open the STEP6 - TPM folder
2. Open the Setup.exe file in the folder
3. Follow the instructions
4. Drivers will be installed automatically
Page 78
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Appendix A
Appendix A - Watchdog Timer Programming
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A.1 Watchdog Timer Initial Program
Table 1 : Embedded BRAM relative register table
Default Value
Note
Index
0x284(Note1)
BRAM Index Register
Data
0x285(Note2)
BRAM Data Register
Logical Device Number
0xA8(Note3)
Watch dog Logical Device Number
Function and Device Number
0x00(Note4)
Watch dog Function/Device Number
Table 2 : Watchdog relative register table
Option
Register
BitNum
Value
Note
Timer Counter
0x00(Note5)
(Note10)
Time of watchdog
timer
(0~255)
Counting Unit
0x01(Note6)
0(Note7)
0(Note11)
Select time unit.
0: second
1: minute
Watchdog RST pulse
width
0x01(Note8)
[3:2](Note9)
0(Note12)
0: 20ms
1: 60ms
2: 100ms
3: 250ms
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************************************************************************************
// Embedded BRAM relative definition (Please reference to Table 1)
#define byte EcBRAMIndex //This parameter is represented from Note1
#define byte EcBRAMData //This parameter is represented from Note2
#define byte BRAMLDNReg //This parameter is represented from Note3
#define byte BRAMFnDataReg //This parameter is represented from Note4
#define void EcBRAMWriteByte(byte Offset, byte Value);
#define byte EcBRAMReadByte(byte Offset);
#define void IOWriteByte(byte Offset, byte Value);
#define byte IOReadByte(byte Offset);
// Watch Dog relative definition (Please reference to Table 2)
#define byte TimerReg //This parameter is represented from Note5
#define byte TimerVal // This parameter is represented from Note10
#define byte UnitReg //This parameter is represented from Note6
#define byte UnitBit //This parameter is represented from Note7
#define byte UnitVal //This parameter is represented from Note11
#define byte RSTReg //This parameter is represented from Note8
#define byte RSTBit //This parameter is represented from Note9
#define byte RSTVal //This parameter is represented from Note12
************************************************************************************
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************************************************************************************
VOID Main(){
// Procedure : AaeonWDTConfig
// (byte)Timer : Time of WDT timer.(0x00~0xFF)
// (boolean)Unit : Select time unit(0: second, 1: minute).
AaeonWDTConfig();
// Procedure : AaeonWDTEnable
// This procudure will enable the WDT counting.
AaeonWDTEnable();
}
************************************************************************************
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************************************************************************************
// Procedure : AaeonWDTEnable
VOID AaeonWDTEnable (){
WDTEnableDisable(1);
}
// Procedure : AaeonWDTConfig
VOID AaeonWDTConfig (){
// Disable WDT counting
WDTEnableDisable(0);
// WDT relative parameter setting
WDTParameterSetting();
}
VOID WDTEnableDisable(byte Value){
ECBRAMWriteByte(TimerReg , Value);
}
VOID WDTParameterSetting(){
Byte TempByte;
// Watchdog Timer counter setting
ECBRAMWriteByte(TimerReg , TimerVal);
// WDT counting unit setting
TempByte = ECBRAMReadByte(UnitReg);
TempByte |= (UnitVal << UnitBit);
ECBRAMWriteByte(UnitReg , TempByte);
// WDT RST pulse width setting
TempByte = ECBRAMReadByte(RSTReg);
TempByte |= (RSTVal << RSTBit);
ECBRAMWriteByte(RSTReg , TempByte);
}
************************************************************************************
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************************************************************************************
VOID ECBRAMWriteByte(byte OPReg, byte OPBit, byte Value){
IOWriteByte(EcBRAMIndex, 0x10);
IOWriteByte(EcBRAMData, BRAMLDNReg);
IOWriteByte(EcBRAMIndex, 0x11);
IOWriteByte(EcBRAMData, BRAMFnDataReg);
IOWriteByte(EcBRAMIndex, 0x13 + OPReg);
IOWriteByte(EcBRAMData, Value);
IOWriteByte(EcBRAMIndex, 0x12);
IOWriteByte(EcBRAMData, 0x30); //Write start
}
Byte ECBRAMReadByte(byte OPReg){
IOWriteByte(EcBRAMIndex, 0x10);
IOWriteByte(EcBRAMData, BRAMLDNReg);
IOWriteByte(EcBRAMIndex, 0x11);
IOWriteByte(EcBRAMData, BRAMFnDataReg);
IOWriteByte(EcBRAMIndex, 0x12);
IOWriteByte(EcBRAMData, 0x10); //Read start
IOWriteByte(EcBRAMIndex, 0x13 + OPReg);
Return IOReadByte(EcBRAMData, Value);
}
************************************************************************************
Page 84
COM Express Module
COM-BT-A30
Appendix B
Appendix B –I/O Information
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B.1 I/O Address Map
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B.2 Memory Address Map
B.3 IRQ Mapping Chart
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Page 93
COM Express Module
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Appendix C
Appendix C – Programming Digital I/O
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C.1 DIO Programming
COM-BT-A30 utilizes AAEON chipset as its Digital I/O controller.
Below are the procedures to complete its configuration which you can develop
customized program to fit your application.
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C.2 Digital I/O Register
Table 1 : Embedded BRAM relative register table
Default Value
Note
Index
0x284(Note1)
BRAM Index Register
Data
0x285(Note2)
BRAM Data Register
Logical Device Number
0xA2(Note3)
Watch dog Logical Device Number
Input/Output
Function and Device
Number
0x00(Note4)
DIO Input/Output Function/Device
Number
Output Data
Function and Device
Number
0x01(Note5)
DIO Output Data Function/Device
Number
Table 2 : Digital I/O relative register table
Register
Option Register
BitNum
Value
Note
GPI0 Pin Status
0x00(Note6)
0(Note7)
(Note15)
GPA2
GPI1 Pin Status
0x00(Note6)
1(Note8)
(Note16)
GPA3
GPI2 Pin Status
0x00(Note6)
2(Note9)
(Note17)
GPA4
GPI3 Pin Status
0x00(Note6)
3(Note10)
(Note18)
GPA5
GPO0 Pin Status
0x00(Note6)
4(Note11)
(Note19)
GPJ0
GPO1 Pin Status
0x00(Note6)
5(Note12)
(Note20)
GPJ1
GPO2 Pin Status
0x00(Note6)
6(Note13)
(Note21)
GPJ2
GPO3 Pin Status
0x00(Note6)
7(Note14)
(Note22)
GPJ3
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C.3 Digital I/O Sample Program
************************************************************************************
// Embedded BRAM relative definition (Please reference to Table 1)
#define byte EcBRAMIndex //This parameter is represented from Note1
#define byte EcBRAMData //This parameter is represented from Note2
#define byte BRAMLDNReg //This parameter is represented from Note3
#define byte BRAMFnData0Reg //This parameter is represented from Note4
#define byte BRAMFnData1Reg //This parameter is represented from Note5
#define void EcBRAMWriteByte(byte Offset, byte Value);
#define byte EcBRAMReadByte(byte Offset);
#define void IOWriteByte(byte Offset, byte Value);
#define byte IOReadByte(byte Offset);
// Digital Input Status relative definition (Please reference to Table 2)
#define byte DIO0ToDIO7Reg // This parameter is represented from Note6
#define byte DIO0Bit // This parameter is represented from Note7
#define byte DIO1Bit // This parameter is represented from Note8
#define byte DIO2Bit // This parameter is represented from Note9
#define byte DIO3Bit // This parameter is represented from Note10
#define byte DIO4Bit // This parameter is represented from Note11
#define byte DIO5Bit // This parameter is represented from Note12
#define byte DIO6Bit // This parameter is represented from Note13
#define byte DIO7Bit // This parameter is represented from Note14
#define byte DIO0Val // This parameter is represented from Note15
#define byte DIO1Val // This parameter is represented from Note16
#define byte DIO2Val // This parameter is represented from Note17
#define byte DIO3Val // This parameter is represented from Note18
#define byte DIO4Val // This parameter is represented from Note19
#define byte DIO5Val // This parameter is represented from Note20
#define byte DIO6Val // This parameter is represented from Note21
#define byte DIO7Val // This parameter is represented from Note22
************************************************************************************
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************************************************************************************
VOID Main(){
Boolean PinStatus ;
// Procedure : AaeonReadPinStatus
// Input :
// Example, Read Digital I/O Pin 3 status
// Output :
// InputStatus :
// 0: Digital I/O Pin level is low
// 1: Digital I/O Pin level is High
PinStatus = AaeonReadPinStatus(DIO0ToDIO7Reg, DIO3Bit);
// Procedure : AaeonSetOutputLevel
// Input :
// Example, Set Digital I/O Pin 6 level
AaeonSetOutputLevel(DIO0ToDIO7Reg, DIO6Bit, DIO6Val);
}
************************************************************************************
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************************************************************************************
Boolean AaeonReadPinStatus(byte OptionReg, byte BitNum){
Byte TempByte;
TempByte = ECBRAMReadByte(BRAMFnData1Reg, OptionReg);
If (TempByte & BitNum == 0)
Return 0;
Return 1;
}
VOID AaeonSetOutputLevel(byte OptionReg, byte BitNum, byte Value){
Byte TempByte;
TempByte = ECBRAMReadByte(BRAMFnData1Reg, OptionReg);
TempByte |= (Value << BitNum);
ECBRAMWriteByte(OptionReg, BitNum, Value);
}
************************************************************************************
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************************************************************************************
VOID ECBRAMWriteByte(byte OPReg, byte OPBit, byte Value){
IOWriteByte(EcBRAMIndex, 0x10);
IOWriteByte(EcBRAMData, BRAMLDNReg);
IOWriteByte(EcBRAMIndex, 0x11);
IOWriteByte(EcBRAMData, BRAMFnDataReg);
IOWriteByte(EcBRAMIndex, 0x13 + OPReg);
IOWriteByte(EcBRAMData, Value);
IOWriteByte(EcBRAMIndex, 0x12);
IOWriteByte(EcBRAMData, 0x30); //Write start
}
Byte ECBRAMReadByte(byte FnDataReg, byte OPReg){
IOWriteByte(EcBRAMIndex, 0x10);
IOWriteByte(EcBRAMData, BRAMLDNReg);
IOWriteByte(EcBRAMIndex, 0x11);
IOWriteByte(EcBRAMData, FnDataReg);
IOWriteByte(EcBRAMIndex, 0x12);
IOWriteByte(EcBRAMData, 0x10); //Read start
IOWriteByte(EcBRAMIndex, 0x13 + OPReg);
Return IOReadByte(EcBRAMData, Value);
}
************************************************************************************
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