Avalue Technology EMS-BYT Series User manual

Part No. E20178209A4R
EMS-BYT/BYTC1
Series
Fanless Intel® Celeron®/Atom™ SoC Rugged Embedded
System
Quick Reference Guide
3rd Ed –17 April 2019
Copyright Notice
Copyright 2019 Avalue Technology Inc., ALL RIGHTS RESERVED.

EMS-BYT/BYTC1 Series
2 EMS-BYT/BYTC1 Series Quick Reference Guide
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.
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS
FOR A CLASS "A" DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES.
THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST
HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A
COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN
RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTATLLED AND USED IN
ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL
INTERFERENCE TO RADIO COMMUNICATIONS.
OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE
HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO
CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.
A Message to the Customer
Avalue Customer Services
Each and every Avalue’s product is built to the most exacting specifications to ensure
reliable performance in the harsh and demanding conditions typical of industrial
environments. Whether your new Avalue device is destined for the laboratory or the factory
floor, you can be assured that your product will provide the reliability and ease of operation
for which the name Avalue has come to be known.
Your satisfaction is our primary concern. Here is a guide to Avalue’s customer services. To
ensure you get the full benefit of our services, please follow the instructions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions, you can
easily find answers in your product documentation. These answers are normally a lot more
detailed than the ones we can give over the phone. So please consult the user’s manual
first.
To receive the latest version of the user’s manual; please visit our Web site at:
http://www.avalue.com.tw/

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Content
1. Getting Started............................................................................................................7
1.1 Safety Precautions ................................................................................................7
1.2 Packing List...........................................................................................................7
1.3 System Specifications ...........................................................................................8
1.4 System Overview.................................................................................................11
1.4.1 Front View.................................................................................................................................. 11
1.4.2 Rear View................................................................................................................................... 11
1.5 System Dimensions.............................................................................................16
1.5.1 EMS-BYT Series Front & Top View........................................................................................... 16
1.5.2 EMS-BYTC1 Front & Top View.................................................................................................. 17
2. Hardware Configuration...........................................................................................18
2.1 EMS-BYT/BYTC1 connector mapping.................................................................19
2.1.1 External Serial Port 1 connector (COM1) .................................................................................. 19
2.1.2 External Serial Port 3/4/5/6 connector (COM3/4/5/6)................................................................ 19
2.1.3 VGA connector (VGA)................................................................................................................ 20
2.1.4 Multi-Function Port combined COM2, 2 PS/2, Audio, GPIO and SMBus (Multi-function port) . 20
2.1.4.1 GPIO+SMBUS....................................................................................................................... 21
2.1.4.2 COM2 .................................................................................................................................... 21
2.2 EBM-BYTS, AUX-M01, AUX-M02, AUX-M04, AUX-M07, EBM-BYTS DB-A,
EBM-CDVS DB-A and EBM-BYTS DB-E Overviews .....................................................22
2.2.1 EBM-BYTS................................................................................................................................. 22
2.2.2 AUX-M01.................................................................................................................................... 23
2.2.3 AUX-M02.................................................................................................................................... 23
2.2.4 AUX-M04.................................................................................................................................... 24
2.2.5 AUX-M07.................................................................................................................................... 24
2.2.6 EBM-BYTS DB-A....................................................................................................................... 25
2.2.7 EBM-CDVS DB-A ...................................................................................................................... 25
2.2.8 EBM-BYTS DB-E....................................................................................................................... 26
2.3 EBM-BYTS Jumper & Connector list...................................................................27
2.4 EBM-BYTS Jumpers & Connectors settings .......................................................29
2.4.1 Clear CMOS (JCMOS1)............................................................................................................. 29
2.4.2 COM 1/2 pin 9 signal select (JRI1/2)......................................................................................... 29
2.4.3 AT/ ATX Input power select (JAT1) ........................................................................................... 30
2.4.4 LCD backlight brightness adjustment (JVR1)............................................................................ 30
2.4.5 IET interface DP mode select (JDDI1)....................................................................................... 31

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4 EMS-BYT/BYTC1 Series Quick Reference Guide
2.4.6 UIM Switch select (JUIM1)......................................................................................................... 31
2.4.7 Serial port 1/ 2 –RS485 mode select (SW1)............................................................................. 32
2.4.8 LPC port connector (JLPC1)...................................................................................................... 32
2.4.9 LCD inverter connector (JBKL1)................................................................................................ 33
2.4.10 SPI connector (SPI1)............................................................................................................. 33
2.4.11 Front Panel Connector 1 (CN1)............................................................................................. 34
2.4.12 Front Panel Connector 2 (CN2)............................................................................................. 34
2.4.13 DC Output connector (DCOUT_S1)...................................................................................... 35
2.4.14 EC Debug connector (JEC_ROM1)....................................................................................... 35
2.4.15 On-board header for USB2.0 (JUSB1).................................................................................. 36
2.4.16 LVDS connector (JLVDS1).................................................................................................... 36
2.5 AUX-M01, AUX-M02, AUX-M04, AUX-M07, EBM-BYTS DB-A and EBM-CDVS
DB-A Jumper & Connector list .......................................................................................37
2.6 AUX-M01 Jumpers & Connectors settings ..........................................................40
2.6.1 COM 3/4/5/6 pin 9 signal select (JRI3/4/5/6)............................................................................. 40
2.6.2 USB connector (USB3).............................................................................................................. 40
2.6.3 USB connector (JUSB3)............................................................................................................ 41
2.6.4 SMBUS of TCA9555 address setting (PJP1) ............................................................................ 41
2.7 AUX-M02 Connectors settings ............................................................................42
2.7.1 LAN ACT/LNK/SPD LED (JLANLED)........................................................................................ 42
2.7.2 Normal/Bypass mode LED (JLANMODE) ................................................................................. 43
2.8 AUX-M04 Jumpers & Connectors settings ..........................................................43
2.8.1 Operating Modes select (ZJP1)................................................................................................. 43
2.8.2 Power connector (ZPWR1)........................................................................................................ 44
2.8.3 LAN ACT/LNK/SPD LED (Z_JLANLED).................................................................................... 44
2.9 AUX-M07 Connector settings..............................................................................45
2.9.1 SMBUS of TCA9555 address setting (SJP2) ............................................................................ 45
2.10 EBM-BYTS DB-A Jumpers & Connectors settings..............................................46
2.10.1 COM 3/4 pin 9 signal select (OJRI3/4).................................................................................. 46
2.10.2 Serial port 1/ 2 –RS485 mode select (OJP485) ................................................................... 46
2.10.3 SMBUS of TCA9555 address setting (OJP1)........................................................................ 47
2.11 EBM-CDVS DB-A Connector settings.................................................................48
2.11.1 Front Panel Connector 1 (CN1)............................................................................................. 48
2.12 Installing Hard Disk & Memory, PCI devices (EMS-BYT/BYTC1 Series) ............49
2.13 Installing Mounting Brackets (EMS-BYT/BYTC1 Series).....................................50
3.BIOS Setup....................................................................................................................51
3.1 Introduction..........................................................................................................52
3.2 Starting Setup......................................................................................................52
3.3 Using Setup.........................................................................................................53
3.4 Getting Help.........................................................................................................54

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3.5 In Case of Problems............................................................................................54
3.6 BIOS setup..........................................................................................................55
3.6.1 Main Menu ................................................................................................................................. 55
3.6.1.1 System Language............................................................................................................................55
3.6.1.2 System Date....................................................................................................................................55
3.6.1.3 System Time....................................................................................................................................55
3.6.2 Advanced Menu......................................................................................................................... 56
3.6.2.1 ACPI Settings ..................................................................................................................................56
3.6.2.2 IT8528 Super IO Configuration........................................................................................................57
3.6.2.2.1 Serial Port 1 Configuration...............................................................................................................58
3.6.2.2.2 Serial Port 2 Configuration...............................................................................................................59
3.6.2.2.3 Serial Port 3 Configuration...............................................................................................................60
3.6.2.2.4 Serial Port 4 Configuration...............................................................................................................61
3.6.2.2.5 Serial Port 5 Configuration...............................................................................................................62
3.6.2.2.6 Serial Port 6 Configuration...............................................................................................................63
3.6.2.3 EC 8528 H/W Monitor......................................................................................................................64
3.6.2.4 S5 RTC Wake Settings....................................................................................................................64
3.6.2.5 Serial Port Console Redirection.......................................................................................................65
3.6.2.6 CPU Configuration...........................................................................................................................65
3.6.2.6.1 Socket 0 CPU Information ...............................................................................................................66
3.6.2.7 PPM Configuration...........................................................................................................................67
3.6.2.8 IDE Configuration.............................................................................................................................67
3.6.2.9 Network Stack Configuration ...........................................................................................................68
3.6.2.10 CSM Configuration...........................................................................................................................69
3.6.2.11 USB Configuration...........................................................................................................................70
3.6.2.12 Security Configuration......................................................................................................................71
3.6.3 Chipset..................................................................................................................................... 72
3.6.3.1 North Bridge.....................................................................................................................................72
3.6.3.1.1 Intel IGD Configuration ....................................................................................................................73
3.6.3.1.2 IGD - LCD Control............................................................................................................................74
3.6.3.2 South Bridge....................................................................................................................................75
3.6.3.2.1 Azalia HD Audio...............................................................................................................................76
3.6.3.2.2 USB Configuration...........................................................................................................................76
3.6.3.2.3 PCI Express Configuration...............................................................................................................77
3.6.4 Security .................................................................................................................................... 78
3.6.4.1 Secure Boot menu...........................................................................................................................78
3.6.4.1.1 Key Management.............................................................................................................................79
3.6.5 Boot.......................................................................................................................................... 80
3.6.6 Save and exit ........................................................................................................................... 81
3.6.6.1 Save Changes and Reset................................................................................................................81

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6 EMS-BYT/BYTC1 Series Quick Reference Guide
3.6.6.2 Discard Changes and Reset............................................................................................................81
3.6.6.3 Restore Defaults..............................................................................................................................82
3.6.6.4 Launch EFI Shell from filesystem device.........................................................................................82
4. Drivers Installation.......................................................................................................83
4.1 Install Chipset Driver ...........................................................................................84
4.2 Install MBI Driver.................................................................................................85
4.3 Install TXE Driver.................................................................................................86
4.4 Install VGA Driver................................................................................................87
4.5 Install Audio Driver (For Realtek ALC892)...........................................................88
4.6 Install Ethernet Driver..........................................................................................89

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7
1. Getting Started
1.1 Safety Precautions
Warning!
Always completely disconnect the power cord from your
chassis whenever you work with the hardware. Do not
make connections while the power is on. Sensitive
electronic components can be damaged by sudden power
surges. Only experienced electronics personnel should
open the PC chassis.
Caution!
Always ground yourself to remove any static charge before
touching the CPU card. Modern electronic devices are very
sensitive to static electric charges. As a safety precaution,
use a grounding wrist strap at all times. Place all electronic
components in a static-dissipative surface or static-shielded
bag when they are not in the chassis.
1.2 Packing List
1 x EMS-BYT/BYTC1 Fanless Intel® Celeron®/Atom™ SoC Rugged
Embedded System
Other major components include the followings:
—44 Pin Multi I/O Cable
—Wall Mount Kit
—Adapter
—Power Cord

EMS-BYT/BYTC1 Series
8 EMS-BYT/BYTC1 Series Quick Reference Guide
1.3 System Specifications
System
Board
EBM-BYTS (EMS-BYT)
EBM-BYTS + AUX-M01 (EMS-BYT-6COM)
EBM-BYTS + AUX-M02(EMS-BYT-5LAN)
EBM-BYTS + AUX-M07 (EMS-BYT-4COM Isolation)
EBM-BYTS + AUX-M04 (EMS-BYT-PSE)
EBM-BYTS + EBM-BYTS DB-A (EMS-BYT-HDMI)
EBM-BYTS + EBM-CDVS DB-A (EMS-BYT-DVI)
EBM-BYTS + EBM-CDVS DB-E (EMS-BYT-USB)
CPU
Intel® Celeron® Processor J1900 Family
Intel® Atom™ Processor E3800 Family
BIOS
AMI uEFI BIOS, 64Mbit SPI Flash ROM
System Chipset
Valleyview-D/I SoC Integrated
I/O Chip
EC ITE IT8528E
System Memory
One 204-pin SODIMM Socket Up to 8GB DDR3L
1066/1333MHz SDRAM
Storage
1 x 2.5” Drive Bay, 1 x mSATA
Watchdog Timer
H/W Reset, 1sec. ~ 65535sec.
H/W Status
Monitor
CPU & System Temperature Monitoring and Voltages Monitoring
Expansion
Interface
IET Interface (1 x DP, 4 x PCIex1, 3 x USB, 1 x LPC, 1 x Line-Out (R/L), 1
x SMBus)
2 x Mini PCIe Socket (mSATA and SIM Card Supported)
External I/O
COM
2 x COM (Can be set as RS-232/422/485 by BIOS) (EMS-BYT,
EMS-BYT-5LAN, EMS-BYT-PSE, EMS-BYT-DVI)
6 x COM (Can be set as RS-232/422/485 by BIOS) (EMS-BYT-6COM)
6 x COM (Can be set as RS-232/422/485 by BIOS; COM3 ~ COM6
Supported 2.5kv Isolation) (EMS-BYT-4COM Isolation)
4 x COM (Can be set as RS-232/422/485 by BIOS) (EMS-BYT-HDMI)
LAN
1 x RJ45 (EMS-BYT, EMS-BYT-6COM, EMS-BYT-4COM Isolation,
EMS-BYT-DVI)
5 x LAN Supports 2-pair LAN Bypass (EMS-BYT-5LAN)
5 x RJ45 (4-port Gigabit Powered LAN (IEEE802.3af 12.95W per port))
(EMS-BYT-PSE)
3 x RJ45 (EMS-BYT-HDMI)
Display Output
1 x VGA (EMS-BYT, EMS-BYT-6COM, EMS-BYT-5LAN,

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EMS-BYT-4COM Isolation, EMS-BYT-PSE)
1 x VGA, 1 x HDMI (EMS-BYT-HDMI)
1 x VGA, 1 x DVI (EMS-BYT-DVI)
Audio Port
Mic-in, Line-in, Line-out
GPIO
6-bit GPI and 6-bit GPO
USB Port
3 x USB 2.0 (Rear 2; Front 1) (EMS-BYT)
5 x USB 2.0 (Rear 4; Front 1) (EMS-BYT-6COM, EMS-BYT-5LAN,
EMS-BYT-4COM Isolation, EMS-BYT-PSE, EMS-BYT-HDMI,
EMS-BYT-DVI)
6 x USB 2.0, 4 x USB 3.0 (Rear 9; Front 1) (EMS-BYT-USB)
PS/2
2 x PS/2 for KB & MS
SIM
1 x SIM Card Slot
SMBUS
1 x SMBUS
Antenna
2 Knockouts for Antenna Mounting (Options to Add WiFi & 3G)
Audio
Audio Chipset
Realtek ALC892 Supports 5.1-CH Audio
Audio Interface
Line-in, Line-out and Mic-in
Ethernet
LAN Chip
1 x Intel® I211AT Gigabit Controller
Ethernet Interface
10/100/1000 Base-Tx Gigabit Ethernet Compatible
Mechanical & Environmental
Power Requirement
DC +12V ~ +26V, Wide Voltage Single Power Input
TVS Component for Surge Protection
Reverse Current/Voltage Protection
ACPI
Single Power ATX Support S0, S3, S4, S5
ACPI 5.0 Compliant
Power Mode
AT/ATX (ATX is The Default Setting)
Operating Temp.
For Valleyview-D SoC, -15°C ~ 60°C (w/SSD, mSATA) Ambient w/Air
Flow; 0°C ~ 45°C (w/HDD) Ambient w/Air Flow (EMS-BYT,
EMS-BYT-6COM, EMS-BYT-5LAN, EMS-BYT-4COM Isolation,
EMS-BYT-HDMI, EMS-BYT-DVI, EMS-BYT-USB)
For Valleyview-I SoC, -40°C ~ 75°C (w/SSD, mSATA) Ambient w/Air Flow
(EMS-BYT, EMS-BYT-6COM, EMS-BYT-5LAN, EMS-BYT-4COM
Isolation, EMS-BYT- HDMI, EMS-BYT-DVI, EMS-BYT-USB)
For Valleyview-D SoC, -15°C ~ 50°C (w/SSD, mSATA) Ambient w/Air
Flow; 0°C ~ 45°C (w/HDD) Ambient w/Air Flow (EMS-BYT-PSE)
For Valleyview-I SoC, -40°C ~ 65°C (w/SSD, mSATA) Ambient w/Air Flow
(EMS-BYT-PSE)
Storage Temp.
-40 ~ 75°C (-40 ~ 167°F)

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10 EMS-BYT/BYTC1 Series Quick Reference Guide
Relative Humidity
0% ~ 90% Relative Humidity, Non-condensing
Vibration
Protection
With mSATA/SSD: 5Grms, IEC 60068-2-64, Random, 10 ~ 500Hz,
1hr/axis
Shock Protection
With mSATA/SSD: 50G, IEC 60068-2-27, Half Sine, 11ms
Certification
CE, FCC Class B (EMS-BYT, EMS-BYT-6COM, EMS-BYT-5LAN,
EMS-BYT-4COM Isolation, EMS-BYT-HDMI, EMS-BYT-DVI,
EMS-BYT-USB)
CE, FCC Class A (EMS-BYT-PSE)
Dimension (W x H x
D)
240mm x 170mm x 45mm (EMS-BYT)
240mm x 170mm x 60mm (EMS-BYT-6COM, EMS-BYT-5LAN,
EMS-BYT-4COM Isolation, EMS-BYT-PSE, EMS-BYT-HDMI,
EMS-BYT-DVI, EMS-BYT-USB)
Weight
4.4 lbs (2 Kgs)
Note: Specifications are subject to change without notice.

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1.4 System Overview
1.4.1 Front View EMS-BYT Series
EMS-BYTC1
1.4.2 Rear View
EMS-BYT

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12 EMS-BYT/BYTC1 Series Quick Reference Guide
EMS-BYT-6COM/4COM Isolation
EMS-BYT-5LAN/PSE
EMS-BYT-HDMI

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EMS-BYT-DVI
EMS-BYT-USB
EMS-BYT
Connectors
Label
Function
Note
COM1
Serial port connector 1
DC-IN
DC power-in connector
LAN1
RJ-45 Ethernet 1
Multi-function port
Multi-Function Port combined COM2,
2 PS/2, Audio, GPIO and SMBus
USB
3 x USB2.0 connector
VGA
VGA connector
Swappable Drawer
2.5” Driver Bay and SIM Card
HDD
HDD indicator

EMS-BYT/BYTC1 Series
14 EMS-BYT/BYTC1 Series Quick Reference Guide
EMS-BYT-6COM/4COM Isolation
Connectors
Label
Function
Note
COM1
Serial port connector 1
COM3~6
Serial port connector3~6
DC-IN
DC power-in connector
LAN1
RJ-45 Ethernet 1
Multi-function port
Multi-Function Port combined COM2,
2 PS/2, Audio, GPIO and SMBus
USB
5 x USB2.0 connector
VGA
VGA connector
Swappable Drawer
2.5” Driver Bay and SIM Card
HDD
HDD indicator
EMS-BYT-5LAN/PSE
Connectors
Label
Function
Note
COM1
Serial port connector 1
DC-IN
DC power-in connector
LAN1~5
RJ-45 Ethernet 1~5
Multi-function port
Multi-Function Port combined COM2,
2 PS/2, Audio, GPIO and SMBus
USB
5 x USB2.0 connector
VGA
VGA connector
Swappable Drawer
2.5” Driver Bay and SIM Card
HDD
HDD indicator
EMS-BYT-HDMI
Connectors
Label
Function
Note
COM1
Serial port connector 1
COM3~4
Serial port connector 3~4
DC-IN
DC power-in connector
LAN1~3
RJ-45 Ethernet 1~3
Multi-function port
Multi-Function Port combined COM2,
2 PS/2, Audio, GPIO and SMBus
USB
5 x USB2.0 connector

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VGA
VGA connector
Swappable Drawer
2.5” Driver Bay and SIM Card
HDD
HDD indicator
HDMI
HDMI connector
EMS-BYT-DVI
Connectors
Label
Function
Note
COM1
Serial port connector1
DC-IN
DC power-in connector
LAN1
RJ-45 Ethernet 1
Multi-function port
Multi-Function Port combined COM2,
2 PS/2, Audio, GPIO and SMBus
USB
5 x USB2.0 connector
VGA
VGA connector
Swappable Drawer
2.5” Driver Bay and SIM Card
PWR
System power indicator
HDD
HDD indicator
Reset
Reset button
DVI
DVI connector
EMS-BYT-USB
Connectors
Label
Function
Note
COM1
Serial port connector1
DC-IN
DC power-in connector
LAN
RJ-45 Ethernet
Multi-function port
Multi-Function Port combined COM2,
2 PS/2, Audio, GPIO and SMBus
USB
6 x USB2.0 connector
4 x USB3.0 connector
VGA
VGA connector
Swappable Drawer
2.5” Driver Bay and SIM Card
PWR
System power indicator
HDD
HDD indicator
Reset
Reset button

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1.5 System Dimensions
1.5.1 EMS-BYT Series Front & Top View
(Unit: mm)

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1.5.2 EMS-BYTC1 Front & Top View
(Unit: mm)

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2.Hardware
Configuration
Jumper and Connector Setting, Driver and BIOS Installing
For advanced information, please refer to:
1- EBM-BYTS, AUX-M01, AUX-M02, AUX-M04, AUX-M07, EBM-BYTS
DB-A, EBM-CDVS DB-A and EBM-BYTS DB-E included in this manual.
Note: If you need more information, please visit our website:
http://www.avalue.com.tw

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2.1 EMS-BYT/BYTC1 connector mapping
2.1.1 External Serial Port 1 connector (COM1)
Pin
RS-232
RS-485
RS-422
1
DCD
TXD-/RXD-
TXD-
2
RXD
TXD+/RXD+
TXD+
3
TXD
RXD+
4
DTR
RXD-
5
GND
GND
GND
6
DSR
7
RTS
8
CTS
9
RI
2.1.2 External Serial Port 3/4/5/6 connector (COM3/4/5/6)
Pin
RS-232
RS-485
RS-422
1
DCD
TXD-/RXD-
TXD-
2
RXD
TXD+/RXD+
TXD+
3
TXD
RXD+
4
DTR
RXD-
5
GND
GND
GND
6
DSR
7
RTS
8
CTS
9
RI

EMS-BYT/BYTC1 Series
20 EMS-BYT/BYTC1 Series Quick Reference Guide
2.1.3 VGA connector (VGA)
PIN
Signal
PIN
Signal
PIN
Signal
1
RED
6
GND
11
NC
2
GREEN
7
GND
12
DDCDAT
3
BLUE
8
GND
13
HSYNC
4
NC
9
+5V
14
VSYNS
5
GND
10
GND
15
DDCCLK
2.1.4 Multi-Function Port combined COM2, 2 PS/2, Audio, GPIO and SMBus
(Multi-function port)
PIN
Signal
PIN
Signal
PIN
Signal
1
LINE1_JD
16
FRONT_JD
31
LINE1_RIN
2
MIC1_JD
17
LINEOUT_R
32
GND
3
MIC_RIN
18
GND
33
LINE1_LIN
4
GND
19
LINEOUT_L
34
+5V
5
MIC_LIN
20
GND
35
DO3
6
DO5
21
DO4
36
DO0
7
DO2
22
DO1
37
DI3
8
DI5
23
DI4
38
DI0
9
DI2
24
DI1
39
SMB_CLK
10
MSCK
25
SMB_DATA
40
NRIB#
11
GND
26
GND
41
NRTSB#
12
MSDA
27
NCTSB#
42
COM2_GND
13
KBDA
28
NDSRB#
43
NTXDB_485RXP
14
VCC_PS2
29
NDTRB#_485RXN
44
NDCDB#_485TXN
15
KBCK
30
NRXDB_485TXP