COMMELL LE-37R 3.5 Inch Motherboard User Manual

June 9, 2024
COMMELL

COMMELL logo

LE-37R
3.5 inch Motherboard
User’s Manual
Edition 1.2
2023/01/31

COMMELL LE-37R 3.5 Inch Motherboard

LE-37R 3.5 Inch Motherboard

Copyright
Copyright 2022, all rights reserved. This document is copyrighted and all rights are reserved.
The information in this document is subject to change without prior notice to make improvements to the products.
This document contains proprietary information and protected by copyright. No part of this document may be reproduced, copied, or translated in any form or any means without prior written permission of the manufacturer.
All trademarks and/or registered trademarks contains in this document are property of their respective owners.

Disclaimer
The company shall not be liable for any incidental or consequential damages resulting from the performance or use of this product.
The company does not issue a warranty of any kind, express or implied, including without limitation implied warranties of merchantability or fitness for a particular purpose.
The company has the right to revise the manual or include changes in the specifications of the product described within it at any time without notice and without obligation to notify any person of such revision or changes.

Trademark
All trademarks are the property of their respective holders.
Any questions please visit our website at TU http://www.commell.com.twUT

Packing List:
Please check the package content before you starting using the board.

COMMELL LE-37R 3.5 Inch Motherboard - Fig 1

Chapter 1

1.1

LE-37R is a 3.5” Motherboard which supports Alder Lake/12th Gen P Processors, integrated Intel® Xe Graphics, DDR5 memory, Realtek High Definition Audio, Intel Gigabit LAN, USB3.2 Gen2, SATA3, Type C with AHCI function for a system.
New feature for Alder Lake
Alder Lake/12th Gen Processors are based on the 7nm SuperFin process, and offer long-life availability. i7-1270PE processor with 4 P-cores and 8 E-cores. P-cores can help
you handle heavy tasks, and E-cores run background tasks efficiently to save power.
All in One multimedia solution
The board provides high performance onboard graphics, and supports Type C (Alt mode), HDMI, and High Definition Audio, to meet the very requirement of the multimedia application.
Alder Lake support Windows 10 version 21H2 64bit and Linux 5.18
Intel recommends using Windows 10 version 21H2 64bit. It may lose some drivers if you use other Windows version.

1.2

System|
---|---
Processor| Intel® Alder Lake P Processor
FCBGA1744 package
Memory| 2 x DDR5 SO-DIMM up to 4800 MHz 64GB,
Support Non-ECC, unbuffered memory
Watchdog Timer| Generates a system reset with internal timer for 1min/s ~ 255min/s
Real Time Clock| Chipset integrated RTC with onboard lithium battery
Expansion| 1 x MiniPCIe with SIM Slot (support mSATA) (Note3)
1 x M.2 (Key E 2230) for Wi-Fi and Bluetooth
2 x M.2 (Key M 2280) support PCIe Gen4 for NVMe
Graphics|
Chipset| Intel® Iris® Xe Graphics (i7, i5)
Intel® UHD Graphics (i3, Celeron 7305E)
Display Interface| 1 x LVDS (Note1) ,1 x DisplayPort (Note2), 1 x HDMI, 2 x HDMI / DVI,
1 x Type-C (DP Alt. Mode)
LAN|
Chip| 1 x Intel® I219-LM Gigabit PHY LAN (supports Intel® AMT 16)
2 x Intel® I226-LM Gigabit LAN (up to 2.5GbE)
I/O|
Serial ATA| 2 x SATA3 (Note3)
Audio| Realtek ALC888S HD Audio
Internal I/O| 2 x SATA3, 2 x USB2.0, 2 x HDMI / DVI, 2 x RS232, 2 x RS232/485/422
1 x LVDS, 1 x LCD inverter connector, 1 x GPIO, 1 x Audio,
1 x Audio Amplifier, 1 x SMBus
Rear I/O| 1 x DisplayPort (Note2), 1 x HDMI, 1 x Type-C (DP Alt. Mode),
3 x USB3.2 Gen2, 3 x LAN
Mechanical & Environmental
Power Requirement| DC input 9~35V
Size| 146mm x 101mm (L x W)
Temperature| Operating within 0°C~60°C (32°F~140°F)
Storage within -20°C~80°C (-4°F~176°F)
Relative Humidity| 10%~90%, non-condensing

Note1: Onboard 18/24-bit single/dual channel +3.3V/ +5V/ +12V LVDS.
Note2: Change pin header to support ADP-3355 or ADP-3460, please contact with our sales for OEM version.
Note3: SATA2 cannot use when Mini_card change to mSATA.
Note4: Intel Iris Xe Graphics has to install two memory cards.

1.3

COMMELL LE-37R 3.5 Inch Motherboard - Fig 2

Chapter 2

2.1

COMMELL LE-37R 3.5 Inch Motherboard - Fig 3

COMMELL LE-37R 3.5 Inch Motherboard - Fig 4

2.1.1

Connector Function
DDR5_A/B 262-pin DDR5 SO-DIMM slot
SATA1/2 7-pin SATA3 connector
CN_AUDIO 5 x 2-pin audio pin header
CN_LVDS 20 x 2-pin LVDS connector
CN_INV 5-pin LCD inverter connector
CN_SMBUS 3-pin SMBus connector
CN_COM 1/2 20-pin RS232/RS422/RS485 connector
CN_COM 3/4 20-pin RS232 connector
CN_USB 5 x 2-pin USB2.0 pin header
CN_DIO 6 x 2-pin digital I/O connector
CN_BAT 2-pin Battery connector
CN_SPKR 6-pin Speaker connector
CPUFAN 4-pin CPU fan connector
SYSFAN 4-pin system fan connector
JFRNT 10-pin front panel switch/indicator connector
MPX_H 52-pin MiniPCIe card slot
M2_KEYE 75-pin M.2 Key E slot
M2_NVME1/2 75-pin M.2 2280 Key M slot support PCIe Gen4
DC_IN 2-pin power input Terminal Block
DC_OUT 4-pin SATA Power connector
SIM 6-pin SIM socket

2.1.2

Connector Function
HDMI-DP DisplayPort and HDMI dual layer connector
USB3-1 1 x USB3.2 Gen2 connector
USB3-2 2 x USB3.2 Gen2 connector
RJ45-1 RJ45 connector (I219-LM)
RJ45-2/3 RJ45 connector (I226-LM)
Type C Support USB3.2 gen2 or DP

2.2
LE-37R has 262-pin DDR5 SODIMM support up to 64GB of memory capacity and 1.1
Voltage. Only Non-ECC memory is supported.

In the process, the board must be powered off.

  1. Put the memory tilt into the slot. Note the Memory notch key aligned slot key.

  2. Then press down till lock into the mounting notch.
    COMMELL LE-37R 3.5 Inch Motherboard - Fig 5

  3. To remove the memory, push outward on both sides of the latch.

2.3

COMMELL LE-37R 3.5 Inch Motherboard - Fig 7

2.3.1

Jumper Function
JAT Power mode select
RTC CMOS Normal/Clear Setting
JVLCD Panel Voltage Setting
JMSATA MiniCard mSATA Setting
JP1 COM1 Voltage Setting (For Pin 9)
JP2 COM2 Voltage Setting (For Pin 9)

2.3.2

JAT: AT/ATX mode select jumper

Jumper settings Function
1-2 AT mode
2-3 ATX mode (Default)

JRTC: Clear CMOS data jumper

Jumper settings Function
1-2 Clear CMOS
2-3 Normal (Default)

2.4 <I/O interface>
2.4.1
SATA 1/2 : SATA3 7-pin connector

Pin Signal
1 GND
2 TX+
3 TX-
4 GND
5 RX-
6 RX+
7 GND

2.4.2
The board provides I219-LM Gigabit Ethernet which supports WOL on rear I/O. It supports Intel® AMT 16.0 feature on I219-LM.
(Note that the CPU must support vPro technology.)

COMMELL LE-37R 3.5 Inch Motherboard - Fig 10

2.4.3
Based on the 12th Gen CPU with built-in Intel® Xe Graphics, the DisplayPort resolution up to 3840×2160 @ 60Hz or 4096×2304 @ 60Hz, the HDMI up to 4096×2304 @ 24Hz and LVDS up to 1920×1200 @ 60Hz supports single bus or dual bus LVDS signaling with color depths of 18 bits or 24 bits. About select LCD Panel Type in BIOS, please refer Appendix B.The built-in Iris® Xe Graphics support Quad display function with clone mode and extended mode.

COMMELL LE-37R 3.5 Inch Motherboard - Fig 11

COMMELL LE-37R 3.5 Inch Motherboard - Fig 12

CN_LVDS: LVDS 40-pin connector (Model: HIROSE DF13-40DP-1.25V compatible)

Pin Signal Pin Signal
2 Set by JVLCD 1 Set by JVLCD
4 Detect (Active low) 3 GND
6 A_LVDS_0- 5 B_LVDS_0-
8 A_LVDS_0+ 7 B_LVDS_0+
10 GND 9 GND
12 A_LVDS_1- 11 B_LVDS_1-
14 A_LVDS_1+ 13 B_LVDS_1+
16 GND 15 GND
18 A_LVDS_2- 17 B_LVDS_2-
20 A_LVDS_2+ 19 B_LVDS_2+
22 GND 21 GND
24 A_LVDS_CLK- 23 B_LVDS_3-
26 A_LVDS_CLK+ 25 B_LVDS_3+
28 GND 27 GND
30 A_LVDS_3- 29 B_LVDS_CLK-
32 A_LVDS_3+ 31 B_LVDS_CLK+
34 GND 33 GND
36 LVDS_DDCSCL 35 NC
38 LVDS_DDCSDA 37 NC
40 NC 39 NC

Pin4 only need to be connected to GND

CN_INV: LVDS 5-pin Backlight power connector

Pin Signal
1 12V
2 Backlight Control
3 5V
4 GND
5 Enable Backlight

JVLCD: LVDS panel power select jumper

Jumper settings Function
1-2 3.3V (Default)
3-4 5V
5-6 12V

CN_DVI/HDMI1/2 : DVI or HDMI connector

Jumper settings Function Jumper settings Function
1 TMDS Data2+ 9 GND
2 TMDS Data2– 10 TMDS Clock+
3 GND 11 TMDS Clock–
4 TMDS Data1+ 12 SCL
5 TMDS Data1– 13 SDA
6 GND 14 +5 V Power
7 TMDS Data0+ 15 HPD
8 TMDS Data0–

2.4.4

COMMELL LE-37R 3.5 Inch Motherboard - Fig 13

`CN_COM1/2: RS232/422/485 20-pin header (Pitch 2.54 x 1.27mm)

Pin Signal Pin Signal
1 DCD1/ 422TX-/ 485- 2 RXD1/ 422TX+/ 485+
3 TXD1 4 DTR1
5 GND 6 DSR1/ 422RX+
7 RTS1 8 CTS1/ 422RX-
9 Set by JP1 10 NC
11 DCD2/ 422TX-/ 485- 12 RXD2/ 422TX+/ 485+
13 TXD2 14 DTR2
15 GND 16 DSR2/ 422RX+
17 RTS2 18 CTS2/ 422RX-
19 Set by JP2 20 Key

CN_COM1/2 RS-232/422/485 can set by BIOS.
You can find the setting from
Advanced-> Motherboard Advanced menu-> Super IO configuration-> Serial Port configuration->Interface

COMMELL LE-37R 3.5 Inch Motherboard - Fig 14

If you want to use RS485, please follow below step before connection. .
COM1 RTX- Data- : short Pin1& Pin8
COM1 RTX+ Data+ : short Pin2& Pin6
COM2 RTX- Data-: short Pin1& Pin8
COM2 RTX+ Data+: short Pin2& Pin6

JP1, JP2: COM1, COM2 pin-9 setting

Jumper settings Function Effective patterns of connection:
1-2 5V 1-2 / 3-4 / 5-6
3-4 12V Other may cause damage
5-6 RI (Default)

CN_COM3/4: RS232 20-pin header (Pitch 2.54 x 1.27mm)

Pin Signal Pin Signal
1 DCD1 2 RXD1
3 TXD1 4 DTR1
5 GND 6 DSR1
7 RTS1 8 CTS1
9 RI1 10 NC
11 DCD2 12 RXD2
13 TXD2 14 DTR2
15 GND 16 DSR2
17 RTS2 18 CTS2
19 RI2 20 Key

2.4.5 <USB interface & Type C >

COMMELL LE-37R 3.5 Inch Motherboard - Fig 15

CN_USB: USB2.0 10-pin header (Pitch 2.54 mm)

Pin Signal Pin Signal
1 5VSB 2 5VSB
3 DATA0- 4 DATA1-
5 DATA0+ 6 DATA1+
7 GND 8 GND
9 GND 10 Key

Type C supports USB 3.1 gen2 and DP Alt. mode, and provides 5V at 3A.

2.4.6

CN_AUDIO: Front panel audio 10-pin header (Pitch 2.54*1.27mm)

Pin Signal Pin Signal
1 MIC_L 2 GND
3 MIC_R 4 NC
5 FP_OUT_R 6 MIC_DETECT
7 SENSE 8 Key
9 FP_OUT_L 10 FP_OUT_DETECT

CN_SPKR: 6-pin Two channel Audio Amplifier

Pin Signal Pin Signal
1 FP_OUT_L_P 2 FP_OUT_L_N
3 JD_Front 4 GND
5 FP_OUT_R_P 6 FP_OUT_R_N

2.4.7

COMMELL LE-37R 3.5 Inch Motherboard - Fig 17

MPX_H support mSATA by JMSATA, and connect SIM card
M.2_NVME1 /2 support PCIe Gen4
M2_KEYE support WI-FI and Bluetooth Module
JMSATA: Setting MPX_H to support PCIe/mSATA

Jumper settings Function
1-2 Support mSATA
2-3 Normal operation (Default)

2.4.8

JFRNT: Front panel switch and indicator 10-pin header

Pin Signal Pin Signal
1 Power_ON- 2 Power_ON+
3 Speaker- 4 Speaker+
5 HDD_LED- 6 HDD_LED+
7 Power_LED- 8 Power_LED+
9 Reset+ 10 Reset-

2.4.9

COMMELL LE-37R 3.5 Inch Motherboard - Fig 19

When using GPIO function, please note:
As Output: Open-drain, most applications need use an external pull up resistor.
(If not may cause damage)
As Input: TTL-level.

GPIO DC characteristics (open drain mode)

Parameter| SYM| MIN| TYP| MAX| UNIT| Conditions
---|---|---|---|---|---|---
Input Low Voltage| V IL| | 0.8| V|
---|---|---|---|---|---
Input High Voltage| V IH| 2.0| | V|
Output Low Voltage| V OL| | 0.4| V| I OL =12mA
Input High Leakage| I LIH| | +10| μ A| V IN =3.3V
Input Low Leakage| I LIL| | -10| μA| V IN =0V

Please refer to Appendix E to program the configuration register

CN_DIO: GPIO 12-pin header (Pitch 2.00mm)

Pin Signal Pin Signal
1 GND 2 GND
3 GP40 4 GP44
5 GP41 6 GP45
7 GP42 8 GP46
9 GP43 10 GP47
11 5V 12 12V

CN_SMBUS : SMBus 5-pin connector (Pitch 2.54mm)

Pin 1 2 3
Signal SMBCLK GND SMBDAT

CPUFAN: CPU cooler fan 4-pin connector

Pin 1 2 3 4
Signal GND 12V Sensor Control

SYSFAN: System cooler fan 4-pin connector

Pin 1 2 3 4
Signal GND 12V Sensor Control

2.5
2.5.1

COMMELL LE-37R 3.5 Inch Motherboard - Fig 20

DC_IN: Terminal block 2-pin power connector

Pin Signal Pin Signal
1 GND 3 DC input 9~35V

2.5.2

DC_OUT : SATA power 4-pin connector

Pin Signal
1 12V
2 GND
3 GND
4 5V

Appendix A

A.1
The board is based on Phoenix BIOS and can be updated easily by the BIOS auto flash tool. You can download the tool online at the address below: FPT Tool
The tool’s file name is “FPT.exe”, it’s the utility that can write the data into the BIOS flash chip and update the BIOS.

A.2

  1. Extract the zip file(re-flash tool and BIOS file) to root of the USB flash drive.
  2. Insert your USB flash drive in USB port of the board and power on the system.
  3. Press F5 in the Phoenix Logo screen
  4. Click the Internal Shell, then input the “fs0:” command to switch to the root of the USB flash drive.
  5. Type the ” fpt -savemac -f xxx.bin” command to start flash BIOS processes. ( xxx.bin means the BIOS file that you want to update)
  6. When it finished all update processes, restart the system.

COMMELL LE-37R 3.5 Inch Motherboard - Fig 22

Appendix B
According your panel, it needs to select the correct resolution in the BIOS. If there is no fit your panel type, please feedback for us to make OEM model.
Find the setting from
Advanced->Motherboard Advanced menu->LVDS Configuration
EDID Panel type: There are 7 resolutions in LCD Panel Type, if your panel is not in the list, please contact [email protected]
LVDS Bus: Select Single / Dual channel
Panel Color Depth: Select VESA 24 bit / JEIDA 24 bit / VESA and JEIDA 18 bit

COMMELL LE-37R 3.5 Inch Motherboard - Fig 23

Appendix C
The watchdog timer makes the system auto-reset while it stops to work for a period. The integrated watchdog timer can be setup as system reset mode by program. You can select Timer setting in the BIOS, after setting the time options, the system will reset according to the period of your selection. Find the setting from Advanced⇒Motherboard Advanced Menu->Power Advanced menu-> Watch dog timer select

COMMELL LE-37R 3.5 Inch Motherboard - Fig 24

Program sample
Watchdog timer setup as system reset with 5 second of timeout

-o 4E 87
-o 4E 87
-o 4E 07
-o 4F 08
-o 4E 30
-o 4F 01
-o 4E F0
-o 4F 00
-o 4E F1
-o 4F 05| ;enter configuration
;select Logical Device
; activate WDTO# function
;set “00” is second mode, set “08” is minute mode
;00h: Timeout Disable
;01h: Timeout occurs after 1 minute only
;02h: Timeout occurs after 2 second/minute
;03h: Timeout occurs after 3 second/minute …
;FFh: Timeout occurs after 255 second/minute
(The deviation is approx 1 second.)
---|---

For further information, please refer to Nuvoton NCT6126D datasheet

Appendix D
Find the setting from
Advanced-> Motherboard Advanced menu-> Super IO configuration->⇒Hardware Monitor

COMMELL LE-37R 3.5 Inch Motherboard - Fig 25

Appendix E
The GPIO can be programmed with the MS-DOS debug program using simple IN/OUT commands.

GPIO 0 1 2 3 4 5 6 7
bit 0 1 2 3 4 5 6 7

-o 4E 87
-o 4E 87
-o 4E 07
-o 4F 07
-o 4E 30
-o 4F 10
-o 4E F0
-o 4F XX
-o 4E F1
-o 4F XX
Optional
-o 4E F2
-o 4F XX| ;enter configuration
;select Logical Device
;activate GPIO function (The board use GPIO4)
;set “01” GPIO as input, set “00” GPIO as output
;if set GPIO as output, this register’s value can be set “00~ FF”
;set “01”, the respective bit are inverted (Both input and output)
;set “00”, the respective bit are normal
---|---

For further information, please refer to Nuvoton NCT6126D datasheet

Contact information

Any advice or comment about our products and service, or anything we can help you please don’t hesitate to contact with us. We will do our best to support you for your products, projects and business.

Taiwan Commate computer Inc.

Address| 19F., NO.94, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei City 22102, Taiwan.
---|---
TEL| +886-2-26963909
Website| www.commell.com.tw
E-mail| [email protected] (General information)
[email protected] (Technical Support)

Commell is a brand name of Taiwan Commate computer Inc.

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