LX2162A SOM Hardware User Manual

Revisions and Notes

Date	Owner	Revision	Notes
Mar 27, 2022	Rabeeh Khoury	1.0
May 15, 2023	Rabeeh Khoury	1.1	Limited DDR4 configuration to 8 and 16GByte only (removed 32GByte support). Added notes withregards max power consumption
Table of Contents	1 Revisions and Notes 2 Introduction 3 Specifications 4 Overview 5 Description 5.1 Block Diagram 6 Simplified Schematics 7 Module dimensions and board to board header orientation 8 Module Max Power Consumption Measurements 9 SERDES configuration 9.1 SERDES block #1 (SD1) 9.2 SERDES block #2 (SD2) 10 Pinout 10.1 J3 Header 10.2 J2 Header 10.3 J1 Header* 11 Documentation 12 Related Articles

No warranty of accuracy is given concerning the contents of the information contained in this publication. To the extent permitted by law no liability (including liability to any person by reason of negligence) will be accepted by SolidRun Ltd., its subsidiaries or employees for any direct or indirect loss or damage caused by omissions from or inaccuracies in this document. SolidRun Ltd. reserves the right to change details in this publication without prior notice. Product and company names herein may be the trademarks of their respective owners.

Introduction

This document is intended for hardware engineers that are willing to integrate

LX2162A SOM module from SolidRun ltd.

The document provides details with regards LX2162A module rev 1.0.

Below are two pictures of the SOM; the first is the top side where most of the heat is generated; and the second is from the bottom side where it connects to a carrier board -

Specifications

	LX2082A	LX2122A	LX2162A
CPU Details	NXP Layerscape LX2082A 8 x Cortex A72	NXP Layerscape LX2122A 12 x Cortex A72	NXP Layerscape LX2162A 16 x Cortex A72
CPU Speed	2.0GHz Commercial	2.0GHz Commercial	2.0GHz Commercial
RAM	Single channel with 8GB or 16GB DDR4	Single channel with 8GB or 16GB DDR4	Single channel with 8GB or 16GB DDR4
Internal Storage	8GB eMMC 64MB SPI (other ordering options available)	8GB eMMC 64MB SPI (other ordering options available)	8GB eMMC 64MB SPI (other ordering options available)
External Storage Support	SD PCIe-SSD	SD PCIe-SSD	SD PCIe-SSD
Ethernet	Serdes block 1 (4x25 GbE / 1x100 GbE / 4x10GbE) Serdes block 2 (8x1GbE)(*) Sync-E, 1588-V2 1GbE with PHY	Serdes block 1 (4x25 GbE / 1x100 GbE / 4x10GbE) Serdes block 2 (8x1GbE)(*) Sync-E, 1588-V2 1GbE with PHY	Serdes block 1 (4x25 GbE / 1x100 GbE / 4x10GbE) Serdes block 2 (8x1GbE)(*) Sync-E, 1588-V2 1GbE with PHY
USB 3.0	1	1	1
PCIe	8 (Gen 3 – 2 controllers)*	8 (Gen 3 – 2 controllers)*	8 (Gen 3 – 2 controllers)*
I2C	4	4	4
UART	2	2	2
GPIO	✔	✔	✔
SATA	4xGen 3(*)	4xGen 3(*)	4xGen 3(*)
Security	NXP Layerscape Secure Boot	NXP Layerscape Secure Boot	NXP Layerscape Secure Boot
SD	1	1	1
JTAG	✔	✔	✔
OS Support	Linux DPDK UEFI	Linux DPDK UEFI	Linux DPDK UEFI
Size	55 x 48 mm	55 x 48 mm	55 x 48 mm
Interface	3 x Hirose DF40 connectors	3 x Hirose DF40 connectors	3 x Hirose DF40 connectors
Main Voltage	12V	12V	12V
I/O Voltage	3.3V/1.8V	3.3V/1.8V	3.3V/1.8V
Temperature	Commercial: 0°C to 70°C	Commercial: 0°C to 70°C	Commercial: 0°C to 70°C
Humidity	Humidity (non-condensing): 10% – 90%	Humidity (non-condensing): 10% – 90%	Humidity (non-condensing): 10% – 90%
	Contact Us	Contact Us	Contact Us

(*) Configurable SD2 SERDESs based on NXP LX2162A processor specifications.

Overview

LX2162A SOM is a highly integrated SOM module based on NXP’s LX2162A SoC.

The SoC highlights are up to 2.0GHz 16 x Cortex A72 Arm cores, DDR4 2900 MT/s up to 16 GB capacity with ECC and 12 high speed SERDESes.

The module integrates the following features –

LX2162A SoC (up to 2.0GHz).
On-board single controller supports up to 16GByte DDR4 2900Mtps memory with and without ECC.
Single 12V DC-input is required.

Description

Block Diagram

The following figure describes the LX2162A SOM Blocks Diagram.

Simplified Schematics

Following is a link to that simplified schematics of the board : LX2162A COM Simplified Schematics

LX2162A SOM simplified schematics is intended for the following audience –

Software and firmware engineers that enables them to understand the IO and signal connectivity of the SOM design.
Hardware engineers that are willing to use the SOM and build their own development board.

Module dimensions and board to board header orientation

SOM bottom side DXF file - use attached dxf file for board dimensions, mounting holes and board to board connectors location

*note the board to board pin numbers and keep in mind this is bottom view

Module Max Power Consumption Measurements

Worst case scenario measured, power consumption wise was ~35W on the following scenario -

SOM attached to a simple carrier baseboard
Measured the 12v power rail coming to the whole system
Running 16 threads cpuburn application or memtester application on all cores
CPU junction temperature set to max at 105c
Test excludes SERDES connection, so additional 2-3W for SERDES connections must be taken into account.

SERDES configuration

LX2162A has 2 configurable SERDES blocks named SD1, and SD2.

SERDES 1 block has 4 SERDESes, and SERDES 2 block has 8 SERDESes that can be configured by protocol number. The protocol numbers are limited and can be selected from the following configurations –

SERDES block #1 (SD1)

Protocol	Lane 0 10G-KR0	Lane 1 10G- KR1	Lane 2 10G-KR2	Lane 3 10G-KR3
0	off	off	off	off
1 (*)	PCIe.1 x4
2 (*)	SGMII.3	SGMII.4	SGMII.5	SGMII.6
3	USXGMII / XFI.3	USXGMII / XFI.4	USXGMII / XFI.5	USXGMII / XFI.6
9 (*)	PCIe.1 x1	SGMII.4	SGMII.5	SGMII.6
11 (*)	PCIe.1 x2		SGMII.5	SGMII.6
15	50GE.1		50GE.2
16	50GE.1		25GE.5	25GE.6
17	25GE.3	25GE.4	25GE.5	25GE.6
18	USXGMII / XFI.3	USXGMII / XFI.4	25GE.5	25GE.6
20	40GE.1

(*) Contact SolidRun for this option - requires assembling 100MHz reference clock for SD1 PLLF instead of default 161.13285MHz reference clock

(*) As a self-service the customer can modify the default REFDES U10 that is 161.13285MHz differential clock which is Epson PN X1G004251012100 to Epson PN SG3225EAN 100.000000M-KEGA3. The placement of U10 is as below - (pin 1 marked in red dot) -

SERDES block #2 (SD2)

Protocol	Lane 0 10G-KR0	Lane 1 10G- KR1	Lane 2 10G-KR2	Lane 3 10G-KR3	Lane 4 PCIe16	Lane 5 PCIe17	Lane 6 PCIe18	Lane 7 PCIe19
0	off	off	off	off	off	off	off	off
1	PCIe.3 x 2 (gen 1,2)		SATA.1	SATA.2	PCIe.4 x4 (gen 1,2)
2	PCIe.3 x8
3	PCIe.3 x4				PCIe.4 x4
4	PCIe.3 x4 (gen 1,2)				PCIe.4 x2 (gen 1,2)		SATA.1	SATA.2
5	PCIe.3 x4				SATA.3	SATA.4	SATA.1	SATA.2
6	PCIe.3 x4 (gen 1,2)				SGMII.15	SGMII.16	USXGMII / XFI.13	USXGMII / XFI.14
7	PCIe.3 x1 (gen 1,2)	SGMII.12	SGMII.17	SGMII.18	PCIe.4 x1 (gen 1,2)	SGMII.16	USXGMII / XFI.13	USXGMII / XFI.14
8	X	X	SATA.1	SATA.2	SATA.3	SATA.4	USXGMII / XFI.13	USXGMII / XFI.14
9	SGMII.11	SGMII.12	SGMII.17	SGMII.18	SGMII.15	SGMII.16	SGMII.13	SGMII.14
10	SGMII.11	SGMII.12	SGMII.17	SGMII.18	PCIe.4 x4
11	PCIe.3 x1	SGMII.12	SGMII.17	SGMII.18	PCIe.4 x1	SGMII.16	SGMII.13	SGMII.14
12	SGMII.11	SGMII.12	SGMII.17	SGMII.18	PCIe.4 x2 (gen 1,2)		SATA.1	SATA.2
13	PCIe.3 x4				PCIe.2 x2		SGMII.13	SGMII.14
14	PCIe.3 x2		SGMII.17	SGMII.18	PCIe.2 x2		SGMII.13	SGMII.14

Notice: By default SD2 PLLS is assembled as onboard 156.25MHz and an external 100MHz reference clock (HCSL) is required to be supplied by the carrier board. There is an option to order with an integrated 100MHz reference clock but will require special order from SolidRun.

Pinout

J3 Header

Notes	Driving IC	IC ball number	Schematics Pin Name	Pin Number	Pin Number	Schematics Pin Name	IC ball number	Driving IC	Notes

Notes	Driving IC	IC ball number	Schematics Pin Name	Pin Number	Pin Number	Schematics Pin Name	IC ball number	Driving IC	Notes
Can be floated, or pulled to GND until carrier board powers are valid			PWR_OK	2	1	EVT0_B	T4	1.8V, GPIO_3[12], 4.7K Pull-up	SMB_ALERT#
Connect to RTC battery source			VBAT	4	3	EVT1_B	T6	1.8V, GPIO_3[13], 4.7K Pull-up	THRM#
Output from SOM. Can be used by carrier board up to 600mA			5V	6	5	EVT2_B	U5	1.8V, GPIO_3[14], 4.7K Pull-up
Output from SOM. Can be used by carrier board up to 600mA			5V	8	7	EVT4_B	AA3	1.8V, GPIO_3[16], 4.7K Pull-up
PROC_TMS	LX2162A	E21	DUT_TMS	10	9	EVT3_B	Y4	1.8V, GPIO_3[15], 4.7K Pull-up
PROC_TCK	LX2162A	E23	DUT_TCK	12	11	TA_BB_VDD
Output from SOM. Can be used by carrier board up to 300mA			3.3V	14	13	TMP_DETECT_B	Y6	1.8V, 4.7K Pull-up
PROC_TDI	LX2162A	F20	DUT_TDI	16	15	OVDD			1.8v Output from SOM. Can be used by carrier board up to 300mA
Control the main DC-DC controller			I2C_MASTER_SCL	18	17	V_2.5			Output from SOM. Can be used by carrier board up to 600mA
Control the main DC-DC controller			I2C_MASTER_SDA	20	19	V_2.5			Output from SOM. Can be used by carrier board up to 600mA
PROC_TDO	LX2162A	E19	DUT_TDO	22	21	I2C1_SCL_3p3		NTSX2102GD, 2.2K Pull-up
Can be used to program the internal efuses			TA_PROG_SFP	24	23	I2C1_SDA_3p3		NTSX2102GD, 2.2K Pull-up
FTM1_CH4 / GPIO_3[0]	1.8V, 4.7K Pull-up	R5	PROC_IRQ0	26	25	SPI_D0_1v8
			SPI_MUX_1v8_3v3	28	27	SPI_D1_1v8
			SPI_CS_B_1v8	30	29	SPI_SCK_1v8

J2 Header

Notes	Driving IC	IC ball number	Schematics Pin Name	Pin Number	Pin Number	Schematics Pin Name	IC ball number	Driving IC	Notes

Notes	Driving IC	IC ball number	Schematics Pin Name	Pin Number	Pin Number	Schematics Pin Name	IC ball number	Driving IC	Notes
Diff 100 Ohm	AR8035		MDI_P0	2	1	12V			Single 12v input to SOM . Can be up to 15V
Diff 100 Ohm	AR8035		MDI_N0	4	3	12V
			GND	6	5	12V
Diff 100 Ohm	AR8035		MDI_P1	8	7	12V
Diff 100 Ohm	AR8035		MDI_N1	10	9	12V
			GND	12	11	12V
Diff 100 Ohm	AR8035		MDI_P2	14	13	12V
Diff 100 Ohm	AR8035		MDI_N2	16	15	12V
			GND	18	17	GND
Diff 100 Ohm	AR8035		MDI_P3	20	19	SYS_RESET_IN_1v8#		PT7M3808G01	1.8v system reset input
Diff 100 Ohm	AR8035		MDI_N3	22	21	SYSRST_OUT_3v3#		MC74VHC1GT08	3.3v system reset out
			GND	24	23	PROC_EC2_RXD0	AW3	LX2162A	TSEC_1588_TRIG_IN2 / GPIO_4[21]
	AR8035		GBE0_LINK1000#	26	25	PROC_EC2_RXD1	AV2	LX2162A	TSEC_1588_PULSE_OUT1 / GPIO_4[20]
	AR8035		GBE0_ACT#	28	27	PROC_EC2_RXD2	AU1	LX2162A	GPIO_4[19]
	AR8035		GBE0_LINK#	30	29	PROC_EC2_RXD3	AR1	LX2162A	GPIO_4[18]
Used for boot select	1.8V, CFG_RCW_SRC3, 10K Pull-up	AH6	CFG_RCW_SRC3	32	31	PROC_EC2_RX_CLK	AR3	LX2162A	TSEC_1588_CLK_IN / GPIO_4[22]
CFG_RCW_SRC0 Used for boot select	LX2162A	AH4	UART2_TXD_1v8	34	33	GND
	LX2162A	AE3	UART2_RXD_1v8	36	35	I1588_TRIG_IN1	AW1	LX2162A	TSEC_1588_TRIG_IN1 / GPIO_4[23]
PWRBTN#	1.8V, GPIO3[6], 4.7K Pull-up		PROC_IRQ6	38	37	I1588_ALARM_OUT2	AR5	LX2162A	TSEC_1588_ALARM_OUT2 / GPIO_4[12]
ASLEEP / EVT9_B / GPIO_2[6] Used for boot select	1.8V, 10K Pull-up	AC1	CFG_RCW_SRC2	40	39	I1588_CLK_OUT	AU3	LX2162A	TSEC_1588_CLK_OUT / GPIO_4[14] / EC2_TXD1_S
LX2162A_RCLK0		AV6	IEEE_RCLK0	42	41	I1588_PULSE_OUT2	AU5	LX2162A	TSEC_1588_PULSE_OUT2 / GPIO_4[15] / EC2_TXD0_S
LX2162A_RCLK1		AT6	IEEE_RCLK1	44	43	I1588_ALARM_OUT1	AT4	LX2162A	TSEC_1588_ALARM_OUT1 / GPIO_4[13] / EC2_TXD2_S
GPIO_3[10]	1.8V, 4.7K Pull-up	U3	PROC_IRQ10	46	45	UART1_TXD_1v8	AD4	LX2162A	CFG_RCW_SRC1 Used for boot select
SUS_S5#	1.8V, 4.7K Pull-up	R1	PROC_IRQ7	48	47	UART1_RXD_1v8	AC3	LX2162A
	1.8V, 2.2K Pull-up	AG1	EMI2_MDC	50	49	PROC_IRQ11	U1	LX2162A
	1.8V, 2.2K Pull-up	AG3	EMI2_MDIO	52	51	EMI1_3V3_MDC		NTSX2102GD
	LX2162A	W5	TA_BB_TMP_DETECT_B	54	53	EMI1_3V3_MDIO		NTSX2102GD
GPIO_4[17] / EC2_GTX_CLK_S	LX2162A	AP6	PROC_EC2_GTX_CLK	56	55	FAN_TACHIN
			GND	58	57	PROC_EC2_TX_EN	AV4	LX2162A	GPIO_4[16] / EC2_TX_CTL_S
	NVT4857UK		SD_CMD	60	59	PROC_IRQ9	AA1	1.8V, 4.7K Pull-up
	NVT4857UK		SD_D0	62	61	PROC_IRQ5	W1	1.8V, 4.7K Pull-up
	NVT4857UK		SD_D1	64	63	PROC_IRQ1	P2	1.8V, 4.7K Pull-up
	NVT4857UK		SD_D2	66	65	I2C3_SCL	P6	LX2162A
	NVT4857UK		SD_D3	68	67	I2C3_SDA	N6	LX2162A
	NVT4857UK		SD_CD	70	69	I2C5_SDA	K2	LX2162A
	NVT4857UK		SD_CLK	72	71	I2C5_SCL	J1	LX2162A
Diff 90 Ohm	LX2162A	A5	USB_SSRX0+	74	73	USB0+	A9	LX2162A	Diff 90 Ohm
Diff 90 Ohm	LX2162A	B6	USB_SSRX0-	76	75	USB0-	B10	LX2162A	Diff 90 Ohm
Diff 90 Ohm	LX2162A	A7	USB_SSTX0+	78	77	GND
Diff 90 Ohm	LX2162A	B8	USB_SSTX0-	80	79	FAN_PWM

J1 Header*

Notes	Driving IC	IC ball number	Schematics Pin Name	Pin Number	Pin Number	Schematics Pin Name	IC ball number	Driving IC	Notes

Notes	Driving IC	IC ball number	Schematics Pin Name	Pin Number	Pin Number	Schematics Pin Name	IC ball number	Driving IC	Notes
			GND	2	1	GND
Diff 100 Ohm	LX2162A	BG7	SD1_RX3_P	4	3	SD1_TX3_P	BE9	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH8	SD1_RX3_N	6	5	SD1_TX3_N	BD10	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	8	7	GND
Diff 100 Ohm	LX2162A	BG5	SD1_RX2_P	10	9	SD1_TX2_P	BE7	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH6	SD1_RX2_N	12	11	SD1_TX2_N	BD8	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	14	13	GND
Diff 100 Ohm	LX2162A	BC1	SD1_RX1_P	16	15	SD1_TX1_P	BC5	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BD2	SD1_RX1_N	18	17	SD1_TX1_N	BD4	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	20	19	GND
Diff 100 Ohm	LX2162A	BA1	SD1_RX0_P	22	21	SD1_TX0_P	BA5	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BB2	SD1_RX0_N	24	23	SD1_TX0_N	BB4	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	26	25	GND
Diff 100 Ohm	LX2162A	BG9	SD2_RX0_P	28	27	SD2_TX0_P	BE11	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH10	SD2_RX0_N	30	29	SD2_TX0_N	BD12	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	32	31	GND
Diff 100 Ohm	LX2162A	BG11	SD2_RX1_P	34	33	SD2_TX1_P	BE13	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH12	SD2_RX1_N	36	35	SD2_TX1_N	BD14	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	38	37	GND
Diff 100 Ohm	LX2162A	BG13	SD2_RX2_P	40	39	SD2_TX2_P	BE15	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH14	SD2_RX2_N	42	41	SD2_TX2_N	BD16	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	44	43	GND
Diff 100 Ohm	LX2162A	BG15	SD2_RX3_P	46	45	SD2_TX3_P	BE17	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH16	SD2_RX3_N	48	47	SD2_TX3_N	BD18	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	50	49	GND
Diff 100 Ohm / SD2_PLLF_REF_CLK_P	*100M HCSL required	BG19	CLK_SLOT1_P	52	51	CLK_161_BYP_P			Not Connected
Diff 100 Ohm/ SD2_PLLF_REF_CLK_N	*100M HCSL required	BH20	CLK_SLOT1_N	54	53	CLK_161_BYP_N			Not Connected
			GND	56	55	GND
Diff 100 Ohm	LX2162A	BG23	SD2_RX4_P	58	57	SD2_TX4_P	BE23	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH24	SD2_RX4_N	60	59	SD2_TX4_N	BD24	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	62	61	GND
Diff 100 Ohm	LX2162A	BG25	SD2_RX5_P	64	63	SD2_TX5_P	BE25	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH26	SD2_RX5_N	66	65	SD2_TX5_N	BD26	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	68	67	GND
Diff 100 Ohm	LX2162A	BG27	SD2_RX6_P	70	69	SD2_TX6_P	BE27	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH28	SD2_RX6_N	72	71	SD2_TX6_N	BD28	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	74	73	GND
Diff 100 Ohm	LX2162A	BG29	SD2_RX7_P	76	75	SD2_TX7_P	BE29	LX2162A	Diff 100 Ohm (*)DC block capacitor required
Diff 100 Ohm	LX2162A	BH30	SD2_RX7_N	78	77	SD2_TX7_N	BD30	LX2162A	Diff 100 Ohm (*)DC block capacitor required
			GND	80	79	GND

*No DC blocking capacitor on any of the SerDes lanes on the SOM.

Documentation

	File	Modified
Labels No labels Preview View	Microsoft Excel Spreadsheet LX2162A SOM pinout.xlsx	Mar 27, 2022 by Ilan Braun (Unlicensed)
Labels No labels Preview View	PDF File LX2162A SOM Simplified Schematics Rev1.0.pdf	Apr 03, 2022 by Ilan Braun (Unlicensed)
Labels No labels Preview View	File LX2162A-SOM-bottom-dxf.dxf	Apr 13, 2022 by Ilan Braun (Unlicensed)
Labels No labels Preview View	ZIP Archive LX2162-SOM-v 1_0--3D.zip	Oct 18, 2023 by Rabeeh Khoury

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