MiTWell PSMC-C301 User manual

MITWELL PSMC-C301 User’s Guide (Official R2.0)
Copyright © MITWELL 2017
PSMC-C301 User's Guide
1
PSMC-C301
SMARC 2.0 compliant
Mitwell Evaluation Board
Revision 2.0

MITWELL PSMC-C301 User’s Guide (Official R2.0)
Copyright © MITWELL 2017
PSMC-C301 User's Guide
2
Revision History
Ver.
Description
Date
Approved
R1.0
Initial release
2017. 07. 26
Penny Chiang
R2.0
Design stepping from R0 to R1
2018. 01. 30
Penny Chiang

MITWELL PSMC-C301 User’s Guide (Official R2.0)
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Table of Contents
Disclaimer.......................................................................................................................4
Lead-Free Designs (RoHS)............................................................................................4
Certification.....................................................................................................................4
Safety Instructions..........................................................................................................5
Technical Support...........................................................................................................5
1 Introduction.........................................................................................................................6
2 Product Overview ...............................................................................................................7
2.1 Connector Layout.....................................................................................................7
3 Specifications....................................................................................................................10
3.1 Mechanical Dimensions..........................................................................................10
3.2 Power Supply .........................................................................................................10
3.2.1 ATX / AT Power supply mode .......................................................................11
3.2.2 Power Status LEDs –D30, D31, D32...........................................................11
4 Connector Subsystem ......................................................................................................12
4.1 SMARC Edge Finger Pinout Circuit........................................................................12
4.2 Communication Buses............................................................................................14
4.2.1 CAN BUS .....................................................................................................14
4.2.2 Serial Ports...................................................................................................15
4.2.3 Gigabit Ethernet (GbE) and USB..................................................................17
4.2.4 Display Interfaces.........................................................................................20
4.2.5 SATA ............................................................................................................24
4.2.6 PCIe .............................................................................................................25
4.2.7 SD Card........................................................................................................28
4.2.8 Audio Interfaces............................................................................................28
4.2.9 MIPI-CSI.......................................................................................................29
4.2.10 Other Connectors.......................................................................................31
5 Jumper Settings................................................................................................................33
6 Additional Features...........................................................................................................36
6.1 Power Button..........................................................................................................36
6.2 Reset Button...........................................................................................................36
6.3 Sleep Button...........................................................................................................36
6.4 Force Recovery Button...........................................................................................36
6.5 LID Button...............................................................................................................36

MITWELL PSMC-C301 User’s Guide (Official R2.0)
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IMPORTANT INFORMATION
Disclaimer
Warranty
MITWELL tries to procure that this user manual and our product features are correct and
reliable, but in any condition, MITWELL provides no express or implied warranty and
guaranty regard to this user manual or any other product information.
MITWELL shall not be liable for loss of revenues or profits, inconveniences, expense for
substitute equipment or service, storage charges, loss or corruption of data, or any other
special, incidental or consequential damages caused by the use or misuse of or inability to
use the MITWELL products, regardless of the legal theory on which the claim is based, and
even if MITWELL has been advised of the possibility of such damages.
The information contained within this user manual, including but not limited to any other
product specification, MITWELL reserves its right to modify them at any time without notice.
Trademarks
All product names, logos, brands, trademarks and registered trademarks in this user’s
manual or the MITWELL website are the property of their respective owners.
Lead-Free Designs (RoHS)
All MITWELL designs are created from lead-free components and are completely RoHS
compliant.
Certification
MITWELL is certified to ISO 9001:2008 standard under PORTWELL GROUP.

MITWELL PSMC-C301 User’s Guide (Official R2.0)
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Safety Instructions
MITWELL products are electrostatic sensitive devices and are packaged accordingly. In
order to avoid failure caused by improper using behavior, MITWELL strongly suggests users
to open, handle, ship, and store MITWELL product under its original manufacturer’s
packaging or under electrostatic-free / -protected environment or workstation.
Additionally, for user safety, please read and comply with all Instructions, WARNINGs,
CAUTIONs, and NOTEs marked in this manual.
Read these safety instructions carefully.
Keep this manual for future reference.
Turn off power and unplug any power cords/cables when installing/mounting or un-installing/removing
equipment.
Avoid electrical shock and/or damage to equipment:
Keep the board away from water or liquid sources;
Keep the board away from high heat or high humidity;
Keep the board properly ventilated (do not block or cover ventilation openings);
Make sure to use recommended voltage and power source settings;
Secure the power cord (do not place any object on/over the power cord);
Install/attach and operate the board on stable workstations and/or recommended mountings; and,
If the board will not be used for long periods of time, turn off the power source and remove RTC
battery.
Technical Support
MITWELL technicians and engineers are committed to providing the best possible technical
support for our customers so that our products can be easily used and implemented.
We request that you first visit our website at http://www.MITWELL.com.tw/support/ under
Portwell Group for the latest documentation, utilities and drivers, which have been made
available to assist you. If you still require assistance after visiting our website, you can
contact your local sales and technical support team for further assistance.

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1 Introduction
SMARC2.0 Concept
The SMARC (“Smart Mobility ARChitecture”) is a versatile small form factor computer
Module definition targeting applications that require low power, low costs, and high
performance. The Modules will typically use ARM SOCs similar or the same as those used in
many familiar devices such as tablet computers and smart phones. Alternative low power
SOCs and CPUs, such as tablet oriented X86 devices and other RISC CPUs may be used
as well. The Module power envelope is typically under 6W although designs up to about 15W
are possible.
Two Module sizes are defined: 82mm x 50mm and 82mm x 80mm. The Module PCBs have
314 edge fingers that mate with a low profile 314 pin 0.5mm pitch right angle connector (the
connector is sometimes identified as a 321 pin connector, but 7 pins are lost to the key).
The Modules are used as building blocks for portable and stationary embedded systems.
The core CPU and support circuits, including DRAM, boot flash, power sequencing, CPU
power supplies, GBE and dual channel LVDS display transmitter are concentrated on
the Module. The Modules are used with application specific Carrier Boards that
implement other features such as audio CODECs, touch controllers, wireless devices,
etc. The modular approach allows scalability, fast time to market and upgradability while
still maintaining low costs, low power and small physical size.

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2 Product Overview
The primary purpose of this section is to present a general overview of MITWELL’s SMARC
2.0 compliant carrier board - PSMC-C301. By providing detail schematic and functional
design information in this manual, the PSMC-C301 carrier board provides manufactures and
developers with a platform to jump-start the development of systems and applications based
on SMARC specification.
The PSMC-C301 supports both 82mm x 50mm and 82mm x 80mm SMARC modules.
2.1 Connector Layout

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Connector:
J12 : SATA Connector
J16 : Wafer 4Px1 P=2.5mm 4-Wall (SATA Power)
JP20 : BH5Px1 (Back Light0 -- LVDS)
JP23 : BH5Px1 (Back Light1 -- eDP)
J55 : 3.5mm Triple HD Audio Jack Light Blue/Green/Pink (Audio)
J58 : Box Header 5Px2 P=2.54mm (COM2)
J59 : Box Header 5Px2 P=2.54mm (COM4)
J60 : FAN 4PIN
J61 : Box Header 5Px2 P=2.54mm (GPIO)
J62 : Display port + HDMI 90D (DP+HDMI)
J64 : Wafer 20Px2 P=1.25mm 180D 4-Wall (LVDS)
J65 : M.2 KEY-E
J67 : MiniPCI-Express
J69 : FPC 24P P=1.0mm 90D (CSI1)
J72 : SD Card H=2.75mm (SD Slot)
J73 : Pin Header 7Px2 P=2.0mm 180D (ESPI)
J78 : PCIe x1_36Pin
J79 : RJ45+USB3.0x2
J81 : Pin Header 4Px2 P=2.0mm 180D (Audio)
J82 : RJ45+USB2.0x2
J88 : HEADER 5PX2/2mm(TPM)
J89 : Micro USB B Type
J91 : I2S_Audio_Pin Header
J92 : FPC 15P P=0.5mm Downside 90D (CSI0)
SW1 : Power Button
SW2 : Reset Button
SW3 : Sleep# Button
SW4 : Force Recovery Button
SW5 : LID# Button
U56 : SPI Flash Socket
Jumper:
J87 : HEADER 7PX2/2mm(On Board TPM 2.0)
JP11 : PH5Px2(-10) (FRONT_SIDE)
JP19 : PH3Px2 (LVDS0 Power Select)
JP21 : PH3Px2 (LVDS0 Backlight Select)
JP22 : PH3Px2 (LVDS1 Power Select)

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JP24 : PH3Px2 (LVDS1 Backlight Select)
JP36 : PH3Px1 (RTC Select)
JP38 : HEADER3P/2mm (I2S_Audio Line_IN & Line_OUT & MIC_JD)
JP39 : HEADER3P/2mm (M.2 & Micro USB Select)
JP53 : PH3Px2 (Boot Select)

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3 Specifications
This chapter gives the definitions and shows the positions of jumpers, headers and
connector. All of the configuration jumpers on MITwell evaluative Carrier PSMC-C301 are in
the proper position. The default settings shipped from factory are marked with a star (*).
3.1 Mechanical Dimensions
250 mm x 170 mm
3.2 Power Supply
The PSMC-C301 carrier board supports standard 20-pinATX power supply (J54) and 9V –
36V DC variable power supply via pheonix connector (J71).
JP54: Standard 20-pin ATX Connector (20P)
The PSMC-C301 used with standard ATX (Connector X20) power supplies. The -5V and
-12V power outputs of the ATX power supply are not used.
PIN No.
Signal Description
PIN No.
Signal Description
Figure
1
Power(VCC3)
11
Power(VCC3)
2
Power(VCC3)
12
NC
3
GND
13
GND
4
Power(VCC5)
14
PS_ON#
5
GND
15
GND
6
Power(VCC5)
16
GND
7
GND
17
GND
8
NC
18
NC
9
Power(5VSB)
19
Power(VCC5)
10
Power(VCC12)
20
Power(VCC5)
J71 : 3Px1 P=5.08mm.MSTB (Power IN)
PIN No.
Signal Description
Figure
1
GND
2
GND
3
Power(VIN)

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3.2.1 ATX / AT Power supply mode
When using an ATX power supply, the SMARC module starts after you press the power-on
button SW1. The ATX power supply can also be used in AT mode. In this case the module
starts when you turn on the power supply. Configure the power supply toATX orAT mode
with Jumper (JP14).
JP14: Header3Px1/2.54mm (ATX/AT Mode Select)
Function
Signal Description
Figure
*1-2
ATX Mode (Default)
2-3
AT Mode
JP13: Header3Px1/2.54mm (Auto Power Button)
Function
Signal Description
Figure
1-2
Auto Power Button Enable
*2-3
Auto Power Button Disable
(Default)
3.2.2 Power Status LEDs –D30, D31, D32
LEDs D30-D32 indicates the status of different power voltage input on PSMC-C301.
D32 –PS_ON
D31 –VCC3_IN
D39 –VCC5_ON

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4 Connector Subsystem
4.1 SMARC Edge Finger Pinout Circuit

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4.2 Communication Buses
4.2.1 CAN BUS
PSMC-C301 features two CAN BUS over DB9 connector type for product with CAN BUS features.
(CAN BUS is Not Supported by PSMC-M1011)
J56A : D-SUB 9Px2 (CAN0)
PIN No.
Signal Description
Figure
1
NC
2
CAN0L
3
GND
4
NC
5
NC
6
NC
7
CAN0H
8
NC
9
NC
J56B : D-SUB 9Px2 (CAN1)
PIN No.
Signal Description
Figure
1
NC
2
CAN1L
3
GND
4
NC
5
NC
6
NC
7
CAN1H
8
NC
9
NC

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4.2.2 Serial Ports
The PSMC-C301 supports up to four serial ports:
COM1 on D-SUB Connector (9Px2) at J57A
COM2 on Box Header (5Px2, P=2.54mm) at J58
COM3 on D-SUB Connector (9Px2) at J57B
COM4 on Box Header (5Px2, P=2.54mm) at J59
COM1 and COM3 port may be selected to support RS232/RS422/RS485 via different jumper setting.
J57A : D-SUB 9Px2 (COM1)
PIN No.
Signal Description
Figure
1
485D/422T-
2
RS232RX/DT+
3
RS232TX/422R+
4
422R-
5
GND
6
NC
7
RS232RTS
8
RS232CTS
9
Power(V_RI)
JP15: PH11Px2 (COM1 Function Select)
Function
Jumper Setting
Figure
RS-232
5-6, 10-12, 16-18, 21-22
RS-422
3-4, 8-10, 14-16, 21-22
RS-485
1-2, 8-10, 19-20
JP16: PH3Px1 (COM1 Power Select)
RI
Jumper Setting
Figure
5V
1-2
12V
2-3

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J58 : Box Header 5Px2 P=2.54mm (COM2)
PIN No.
Signal Description
Figure
1
NC
2
COM_RX#2
3
COM_TX#2
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
10
NC
J57B : D-SUB 9Px2 (COM3)
PIN No.
Signal Description
Figure
1
485D/422T-1
2
RS232RX/DT+1
3
RS232TX/422R+1
4
422R-1
5
GND
6
NC
7
RS232RTS1
8
RS232CTS1
9
Power(V_RI1)
JP17: PH11Px2 (COM3 Function Select)
Function
Jumper Setting
Figure
RS-232
5-6, 10-12, 16-18, 21-22
RS-422
3-4, 8-10, 14-16, 21-22
RS-485
1-2, 8-10, 19-20

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JP18: PH3Px1 (COM3 Power Select)
RI
Jumper Setting
Figure
5V
1-2
12V
2-3
J59 : Box Header 5Px2 P=2.54mm (COM4)
PIN No.
Signal Description
Figure
1
NC
2
COM_RX#21
3
COM_TX#21
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
10
NC
4.2.3 Gigabit Ethernet (GbE) and USB
PSMC-C301 provides two Gigabit Ethernet over RJ45 connectors with transformer and LEDs built in.
(GBE0 at J82, GBE1 at J79). Two USB2.0 type A connectors are under GBE0 and two USB3.0 type A
connectors are under GBE1 which supports USB2.0 as well.
USB connectors on PSMC-C301 are allocated as:

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J82 : RJ45+USBx2
PIN No.
Signal Description
Figure
A1
Power(VBUS_5)
A2
USB5-_P
A3
USB5+_P
A4
GND
B1
Power(VBUS_1)
B2
USB1-_P
B3
USB1+_P
B4
GND
C1
Power(GBE0_CTREF)
C2
GBE0_MDI0+
C3
GBE0_MDI0-
C4
GBE0_MDI1+
C5
GBE0_MDI1-
C6
GBE0_MDI2+
C7
GBE0_MDI2-
C8
GBE0_MDI3+
C9
GBE0_MDI3-
C10
GND
C11
LAN_C11
C12
LAN_C12
C13
LAN_C10
C14
LAN_C9
CG1
GND
CG2
GND
CG3
GND
CG4
GND
CG5
GND
CG6
GND
CG7
GND
CG8
GND

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J79 : RJ45+USB3.0x2
PIN No.
Signal Description
Figure
A1
Power(VBUS_2)
A2
USB2-_P
A3
USB2+_P
A4
GND
A5
USB2_SSRX-_P
A6
USB2_SSRX+_P
A7
GND
A8
USB2_SSTX-_P
A9
USB2_SSTX+_P
B1
Power (VBUS_3)
B2
USB3-_P
B3
USB3+_P
B4
GND
B5
USB3_SSRX-_P
B6
USB3_SSRX+_P
B7
GND
B8
USB3_SSTX-_P
B9
USB3_SSTX+_P
C1
VCT
C2
TX1+
C3
TX1-
C4
TX2+
C5
TX2-
C6
TX3+
C7
TX3-
C8
TX4+
C9
TX4-
C10
GND
L1
LAN1_C11
L2
LAN1_C12
L3
LAN1_C10
L4
LAN1_C9
CG1
GND
CG2
GND

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CG3
GND
CG4
GND
CG5
GND
CG6
GND
CG7
GND
CG8
GND
J89 : Micro USB B Type
※JP39 for USB0 select should be shorted at 1-2 when using micro USB port
PIN No.
Signal Description
Figure
1
Power(VBUS_0)
2
USB0-_P
3
USB0+_P
4
USB0_OTG_ID
5
GND
CG1
GND
CG2
GND
CG3
GND
JP39 : HEADER3P/2mm (M.2 & Micro USB Select)
PIN No.
Signal Description
Figure
1-2
Micro USB
*2-3
M.2 (Default)
4.2.4 Display Interfaces
PSMC-C301 provides the following display interfaces :
DisplayPort(DP) on J62 (upper port)
HDMI on J62 (lower port)
eDP/LVDS/DSI on J64