Summary of Contents for Microchip Technology EVB-LAN9662
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EVB-LAN9662 Evaluation Board User’s Guide 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B...
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The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of Microchip Technology Inc. in other countries. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies.
1.9.2 PTP/IEEE1588v2/802.1AS-2020 .............. 14 Chapter 2. Management Software 2.1 Introduction ....................15 2.2 Switchdev for Management and Debugging ..........15 Chapter 3. EVB-LAN9662 End-Node and EVB-LAN9662-Carrier Boards 3.1 Introduction ....................17 3.2 EVB-LAN9662 End-Node Module ..............17 3.2.1 Board Overview ..................17 3.2.2 Power DC Input and LED ................
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EVB-LAN9662 Evaluation Board User’s Guide 3.2.10 Edge Connector ..................19 3.2.11 Boot Modes and Reference Clock ............20 3.3 EVB-LAN9662-Carrier Board for EVB-LAN9662 .......... 20 3.3.1 Board Overview ..................20 3.3.2 Power DC Input and LED ................20 3.3.3 SFP Connectors with Associated Status LEDs ..........20 3.3.4 SMA Connectors at Rear ................21...
• Customer Support • Document Revision History DOCUMENT LAYOUT This document features the EVB-LAN9662 Evaluation Board. The manual layout is as follows: • Chapter 1. “Overview” – This chapter provides a brief overview of the EVB-LAN9662 evaluation board and its features.
Choice of mutually exclusive errorlevel {0|1} character: { | } arguments; an OR selection Ellipses... Replaces repeated text var_name [, var_name...] Represents code supplied by void main (void) user { ... 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 8...
MPLAB REAL ICE in-circuit emulator, MPLAB ICD 3 in-circuit debugger and MPLAB PM3 device programmers. Also included ® are non-production development programmers such as PICSTART Plus and PICkit™ 2 and 3. 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 9...
Updated block diagram. (07-10-24) Figure 5-1 Updated block diagram. Made minor formatting changes. Changed all occurrences of UNG8309(B) to LAN9662-Carrier. Changed all occurrences of UNG8291(C) to EVB-LAN9662 End-Node. DS50003432A Initial release (11-04-22) 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 10...
LAN9662 TSN Ethernet switch architec- ture with Real-Time Engine (RTE) functionality. The LAN9662 End-Node module is based on the EVB-LAN9662 End-Node reference design, and the carrier board is based on EVB-LAN9662-Carrier reference design. This document is intended primarily for hardware and software engineers who want to get an overview of designing products based on the LAN9662.
• Ultra fast frame manipulation for cyclical data flows FEATURES The EVB-LAN9662 is a managed end-node module with expansion headers for all other than the basic functionality of the LAN9662. The module features: • LAN9662 AVB/TSN switch with internal Real-Time Engine and 600 MHz ARM Cortex A7 CPU •...
• Powered from either micro-USB port, the Edge connector, or the Expansion header The EVB-LAN9662-Carrier board exposes more interfaces and functionality of the LAN9662 device. The carrier board is designed to hold the end-node module and pro- vides the following additional features: •...
An external host CPU system can be connected to and control the LAN9662 configured as a client device through the external CPU, using either: • PCIe 2.0 endpoint connection through the EVB-LAN9662 Edge connector to an external host system located on EVB-LAN9662-Carrier board Raspberry Pi com- pute module 4 connectors •...
The EVB-LAN9662 evaluation board is managed through a console port using stan- dard Linux commands. SWITCHDEV FOR MANAGEMENT AND DEBUGGING The EVB-LAN9662 End-Node module can be connected directly to a laptop USB port using a basic USB 2.0 A-Male to Micro-B cable to access the Linux CLI running on the switch.
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11386 // Show speed and duplex # ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 16...
EVB-LAN9662 EVALUATION BOARD USER’S GUIDE Chapter 3. EVB-LAN9662 End-Node and EVB-LAN9662-Carrier Boards INTRODUCTION This section gives an overview of the EVB-LAN9662 End-Node module and EVB-LAN9662-Carrier board. EVB-LAN9662 END-NODE MODULE 3.2.1 Board Overview Figure 3-1 shows the component placement on the EVB-LAN9662 PCB.
600 mA. ® 3.2.7 PCIe 2.0 Endpoint The end-node module offers PCIe 2.0 endpoint connection through the Edge connec- tor. It can only be used together with the carrier board. 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 18...
Expansion header. 3.2.10 Edge Connector A 260-pin SO-DIMM socket on the EVB-LAN9662-Carrier board is used for the inter- connection with the male part on the EVB-LAN9662 End-Node module. This Edge connector exposes the following direct interfaces on LAN9662: •...
However, the on-board buck step-down DC-DC regulator behind accepts 7.5V to 30V input range to deliver a 5V output. The 5 VDC output powers the EVB-LAN9662 End-Node module, the CM4 module, HDMI interface, CAN bus, USB host and the carrier board’s own local DC/DC convert- ers: 1.2V/1.2A, 2.5V/0.2A and 3.3V/1A.
• Micro-USB 2.0 console port, J18 • Micro-SD connector, J17 • HDMI connector, J16 • Raspberry Pi HAT ID EEPROM • Configuration header, J22 • Raspberry Pi activity by using a green LED, D39 2022-2024 Microchip Technology Inc.and its subsidiaries DS50003432B-page 21...
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EVB-LAN9662 Evaluation Board User’s Guide NOTES: 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 22...
Chapter 4. EVB-LAN9662 End-Node Hardware Details BLOCK DIAGRAM Figure 4-1 depicts the block diagram of the EVB-LAN9662 End-Node module with its two Ethernet copper front ports, USB ports and expansion connectors, all marked in green. DC/DC converters are marked red.
The end-node module has a local 25 MHz XTAL, VXM7-9013 as reference input, which provides all the necessary clocking for the end-node modules to function, both as standalone or together with the EVB-LAN9662-Carrier board. However, the module is prepared for using an external 25 MHz reference clock to the switch core and internal Cu PHYs, and/or to use an external 125 MHz differential ref- erence clock, like DSC1201 for the SerDes macros.
NOR Flash device mounted. For production, it is then recommended to use a preprogrammed e-MMC device, or to have an additional test connector, like TC2050, being placed between LAN9662 and the e-MMC for on-board programming. 2022-2024 Microchip Technology Inc.and its subsidiaries DS50003432B-page 25...
CPU system. A powerful external CPU system can however easily make it opposite and much faster. The PCIe 2.0 endpoint connection goes through the EVB-LAN9662 Edge connector to the external host system, which is located on EVB-LAN9662-Carrier Raspberry Pi com- pute module 4 connectors.
HW reset Note 1: The JTAG signals are not 5V-tolerant. JTAG signal levels are determined by the VDD_IOB power supply pin, which is set to 3.3V on EVB-LAN9662. VDD_IOB can also be set to 1.8V or 2.5V. ETHERNET PORTS The LAN9662 has four logical Ethernet ports exposed on various interfaces. The LAN9662 end-node module exposes two internal Cu PHYs (ports 0 and 1) and two Ser- Des interfaces (ports 2 and 3).
It is important to program the MCP2221A during board bring-up, so that Note: GP2 is changed from the default output mode to an input. Otherwise, the EVB-LAN9662 will be in held in reset. Figure 4-4 outlines the micro-USB console port on the end-node module.
LAN9662 GPIO56.) The MIC6315 generates the overall board reset signal, nSYSRESET. A red LED, D1, is controlled by this output signal and is used to indicate the Reset state. 2022-2024 Microchip Technology Inc.and its subsidiaries DS50003432B-page 29...
It can be used for programming the NOR Flash device or give an external CPU control over the SPI client register interface, and exposes various LAN9662 GPIO signals in Alternate mode. 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 30...
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FC = FLEXCOM, FCS = FLEXCOM Shared Although the schematic shows the MDC_B/MDIO_B signals in the Expansion header, they are not currently available because the serial GPIO0 uses the same GPIO pins. 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 32...
EVB-LAN9662 End-Node Hardware Details EDGE CONNECTOR The EVB-LAN9662 End-Node module is the male part of a 260-pin, high-speed SO-DIMM socket on the EVB-LAN9662-Carrier board. The Edge connector exposes most I/O pins on the LAN9662. Table 4-6 shows the placement in the Edge connector. Strapping pins are marked in green, power is marked in orange and ground in gray.
Each GPIO pin in the LAN9662 can be assigned to one of up to eight functions. The following tables show which GPIOs and functionality have been used in the EVB-LAN9662 End-Node design. Strapping pins are marked in green. TABLE 4-7: GPIO USAGE—PI INTERFACE...
EVALUATION BOARD USER’S GUIDE Chapter 5. EVB-LAN9662-Carrier Hardware Details BLOCK DIAGRAM The EVB-LAN9662-Carrier board is intended to expand the functionality of the EVB-LAN9662 End-Node module. Figure 5-1 depicts the block diagram of the EVB-LAN9662-Carrier board with its various I/O interfaces (marked in green) and DC/DC converters (marked in red).
5.3.2 Serial GPIO Output For the output: • Output SGPIO ports 0-1: (EVB-LAN9662 End-Node copper ports P0 and P1 LEDs b0 and b1) • Output SGPIO ports 2: SFP0 control of green and red LEDs • Output SGPIO ports 3: SFP1 control of green and red LEDs •...
FIGURE 5-3: SERIAL GPIO OUTPUT Note: The first 8-bit shift register has been replicated on EVB-LAN9662 End-Node module for local port LED support. Each Tx_Enable signal is inverted before use on the SFP module, as the 74HC594 resets output signals to low, and the SFP TX_DISABLE input is active high. This means an inverting buffer is required to output disable SFPs during Reset state.
LEDs (green and yellow) that are used for additional IO-FPGA status indica- tion, D37-D38. For optional use and debug, there are two 8-pin DIP switches, SW1 and SW2, to force inputs high. 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 40...
5.6.6 FPGA Probe The carrier board provides a 3-pin header, J7, for FPGA probing. The two live probe I/O cells have two purposes: • Live probe functionality • User I/O 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 42...
When operating as USB host, a USB switch located on the carrier board connects the Raspberry Pi 4 USB port to a USB hub, USB2512B-I/M2, to provide two USB 2.0 host ports. Figure 5-9 shows the use of the USB host hub. 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 46...
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2x1 USB type-A female connector, J20. The USB host ports are current limited to 600 mA by using MIC2039. FIGURE 5-10: CM4 USB HOST POWER AND CONNECTORS 2022-2024 Microchip Technology Inc.and its subsidiaries DS50003432B-page 47...
Figure 5-12 shows the HDMI connector supported by the Raspberry Pi compute mod- ule 4. The HDMI is current limited to 50 mA by using MIC2005A. FIGURE 5-12: CM4 HDMI CONNECTOR 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 48...
2x6-pin male header, J22, used for CM4 configuration. The CM4 configuration signals found here are: WL_nDIS, BT_nDIS, EEPROM_nWP, nRPI- BOOT, GLOBAL_EN, CM4_GPIO14, and CM4_GPIO15. FIGURE 5-15: CM4 CONFIGURATION HEADER 2022-2024 Microchip Technology Inc.and its subsidiaries DS50003432B-page 49...
SO-DIMM connector. CONTROL OF BOARD RESET The CM4 module can control the Reset of the full EVB-LAN9662 evaluation board through the PCIe_nRST. Optionally, the PCIe_nRST can be set to only reset the LAN9662 PCIe endpoint controller.
EVB-LAN9662 AND EVB-LAN9662-CARRIER OUTLINE The LAN9662 package pinout is specifically optimized for low-cost PCB designs. As a result, the EVB-LAN9662 End-Node module has only four PCB layers, while the EVB-LAN9662-Carrier reference board has six PCB layers. 2022-2024 Microchip Technology Inc.and its subsidiaries...
EVB-LAN9662 Evaluation Board User’s Guide On the EVB-LAN9662 module, all signals are routed on the top and bottom layers, 1 and 4. Layer 2 is a solid ground plane, which is also used to remove heat from components, and it must (also for this reason) be ensured, that good connection between the outer layer ground fills and the ground planes are estab- lished.
PCB Layout and Silk Screens A.2.1 EVB-LAN9662 End-Node Layer 1 (TOP) The EVB-LAN9662 End-Node layer 1 consists of mostly signal traces for DDR3L and SerDes macros, SFP slots. FIGURE A-3: EVB-LAN9662 END-NODE LAYER 1 2022-2024 Microchip Technology Inc. and its subsidiaries...
PCB Layout and Silk Screens A.2.3 EVB-LAN9662 End-Node Layer 3 (POWER) The EVB-LAN9662 End-Node layer 3 consists of power and ground planes. FIGURE A-5: EVB-LAN9662 END-NODE LAYER 3 2.5V 1.35V 1.1V 3.3V 2022-2024 Microchip Technology Inc. and its subsidiaries...
Refer to Figure A-7 Figure A-8 to see how the DDR length matching is acquired. FIGURE A-7: EVB-LAN9662 END-NODE DDR3L CLOSE UP (TOP) FIGURE A-8: EVB-LAN9662 END-NODE DDR3L CLOSE UP (BOTTOM) 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 57...
PCB Layout and Silk Screens EVB-LAN9662-CARRIER PCB LAYERS Figure A-10 shows the overall placement of components on the EVB-LAN9662-Carrier board. FIGURE A-10: EVB-LAN9662-CARRIER TOP SILK SCREEN Table A-2 describes the different layers in the EVB-LAN9662-Carrier board. TABLE A-2: EVB-LAN9662-CARRIER PCB LAYERS AND DESCRIPTIONS...
EVB-LAN9662 Evaluation Board User’s Guide A.3.1 EVB-LAN9662-Carrier Layer 1 (TOP) The EVB-LAN9662-Carrier layer 1 consists of the following: • SerDes signals to SFP slots • UM4 Debug and control signals to Config header, J22 • UM4 USB Switch, USB2512B • Digital input, dip-switch SW1 and SW2 to IO-FPGA •...
PCB Layout and Silk Screens A.3.2 EVB-LAN9662-Carrier Layer 2 (GND) The EVB-LAN9662-Carrier layer 2 is pure ground plane with cutout around the DC/DC power supplies. FIGURE A-12: EVB-LAN9662-CARRIER LAYER 2 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 61...
The EVB-LAN9662-Carrier layer 3 consists of: • Dark green ground • Red 5V HDMI • Blue 1.2V for IO-FPGA • Light green for IO-FPGA Digital I/O FIGURE A-13: EVB-LAN9662-CARRIER LAYER 3 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 62...
• Pink is 3.3V, light green is 2.5V to IO-FPGA • Dark green is ground for the 12V supply input • Digital I/O from IO-FPGA to pin headers: J10, J11, J13, and J14. FIGURE A-14: EVB-LAN9662-CARRIER LAYER 4 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 63...
EVB-LAN9662 Evaluation Board User’s Guide A.3.5 EVB-LAN9662-Carrier Layer 5 (GND) The EVB-LAN9662-Carrier layer 5 consists of pure ground plane with cutout around the DC/DC power sup- plies. FIGURE A-15: EVB-LAN9662-CARRIER LAYER 5 2022-2024 Microchip Technology Inc. and its subsidiaries...
• UM4 Host USB connector and shielding • UM4 micro-USB, USB3740B and shielding • UM4 HAT EEPROM, 24LC32AT • UM4 HDMI SerDes and shielding • Serial GPIO: U1, U4 and U6 FIGURE A-16: EVB-LAN9662-CARRIER LAYER 6 2022-2024 Microchip Technology Inc. and its subsidiaries DS50003432B-page 65...
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