Texas Instruments DS560MB410EVM Manuel utilisateur

EVM User's Guide: DS560MB410

DS560MB410EVM

ABSTRACT

The DS560MB410 is a 4-channel linear redriver with the ability to extend the reach and robustness of high-

speed serial links for up to 56 Gbps PAM4 interfaces. The DS560MB410EVM evaluation board (hereafter

referred to as DS560MB410EVM) provides users with the ability to evaluate the performance and features of the

DS560MB410 device.

Figure 1-1. DS560MB410EVM

Table of Contents

1 Features...................................................................................................................................................................................3

2 Applications............................................................................................................................................................................ 3

3 Ordering Information..............................................................................................................................................................3

4 Setup........................................................................................................................................................................................3

4.1 Modes of Programmable Communication..........................................................................................................................3

4.2 Configuration Overview......................................................................................................................................................3

5 SigCon Architect.....................................................................................................................................................................4

5.1 Installation.......................................................................................................................................................................... 4

5.2 Configuration......................................................................................................................................................................6

5.3 High Level Page.................................................................................................................................................................9

5.4 Low Level Page................................................................................................................................................................13

5.5 EEPROM Page................................................................................................................................................................ 13

5.6 Eye Height Page.............................................................................................................................................................. 14

6 Common Problems and Suggested Solutions...................................................................................................................16

7 Bill of Materials..................................................................................................................................................................... 17

8 EVM Cable Assemblies........................................................................................................................................................ 22

9 Revision History................................................................................................................................................................... 23

List of Figures

Figure 1-1. DS560MB410EVM.................................................................................................................................................... 1

Figure 5-1. DS560MB410 Profile Installer................................................................................................................................... 5

Figure 5-2. DS560MB410 Profile License Agreement.................................................................................................................5

Figure 5-3. DS560MB410 Profile Installation Complete.............................................................................................................. 6

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DS560MB410EVM 1

Figure 5-4. DS560MB410 Profile Prior to Establishing Communication......................................................................................7

Figure 5-5. Establishing a Connection with the DS560MB410.................................................................................................... 8

Figure 5-6. Enabling Demo Mode................................................................................................................................................9

Figure 5-7. Device Status Tab................................................................................................................................................... 10

Figure 5-8. Block Diagram Tab...................................................................................................................................................11

Figure 5-9. Crosspoint Switch Tab.............................................................................................................................................12

Figure 5-10. Low Level Page.....................................................................................................................................................13

Figure 5-11. EEPROM Page......................................................................................................................................................14

Figure 5-12. Eye Height Page................................................................................................................................................... 15

Figure 8-1. Huber+Suhner 1x8 MXP Cable Assemblies............................................................................................................22

List of Tables

Table 3-1. DS560MB410 Ordering Information............................................................................................................................3

Table 4-1. Description of SMBus and EEPROM Connections.....................................................................................................3

Table 4-2. Test Point Connections (Output Voltage).................................................................................................................... 4

Table 5-1. Device Status Settings and Buttons..........................................................................................................................10

Table 5-2. Block Diagram Settings and Buttons.........................................................................................................................11

Table 5-3. Crosspoint Switch Settings and Buttons................................................................................................................... 12

Table 5-4. Eye Height Page Settings and Buttons.....................................................................................................................15

Trademarks

All trademarks are the property of their respective owners.

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1 Features

• 4-channel unidirectional redriver operating at rates up to 32 Gbps NRZ and 56 Gbps PAM4

• 3 channels are available through an H+S 1×8 MXP Cable and 1 channel is available through a 2.92 mm SMA

• Linear equalization supports link training protocols

• Programmed by on-board USB-to-I2C circuit (USB2ANY)

• Single supply operation: 2.5 V ± 5% supplied directly to IC

– 3.3 V ± 5% supplied to 3.3 V-to-2.5 V on-board LDO

2 Applications

• Backplane or Mid-plane reach extension (200G-KR4)

• SFP28, QSFP28, CFP2/CFP4, and CDFP

3 Ordering Information

Table 3-1. DS560MB410 Ordering Information

EVM ID DEVICE ID DEVICE PACKAGE

DS560MB410EVM DS560MB410 nfBGA (101)

Note

Huber+Suhner MXP cable assembles are not provided with this EVM. Users are expected to provide

cabling to connect to other boards and test equipment. For MXP cabling recommendations, refer to

Section 8.

4 Setup

This section describes the jumpers and connectors on the EVM as well as how to connect, set up, and use the

DS560MB410EVM.

4.1 Modes of Programmable Communication

The DS560MB410EVM can be programmed in one of two modes, which are as follows:

1. SMBus target mode – provides full access to the DS560MB410 status and control settings through the

on-board USB2ANY. ADDR0 (J6) and ADDR1 (J11) headers are used to set the SMBus target address.

2. Controller mode – provides access to the DS560MB410’s EEPROM-programmable control settings through

an 8-pin EEPROM. A subset of SMBus register bits are writeable through the EEPROM. The EEPROM can

program up to 16 DS560MB410 devices.

For convenient use, a USB-to-mini USB cable provides a direct connection through the J27.

4.2 Configuration Overview

The following tables provide a description of the connectors on the DS560MB410EVM.

Table 4-1. Description of SMBus and EEPROM Connections

COMPONENT(S) NETS INCLUDED DESCRIPTION

J4 RXN2, RXP2, RXN1, RXP1, RXN0, RXP0 MXP high-speed differential input pairs

J5 TXP0, TXN0, TXP1, TXN1, TXP2, TXN2 MXP high-speed differential output pairs

J28, J30 RX3P, RX3N Channel 3 high-speed differential inputs SMAs

J29, J31 TX3P, TX3N Channel 3 high-speed differential outputs SMAs

J18 SDA, SCL, GND I2C/SMBus data, clock, and GND pins

J13 ADDR0 4-level strap pins used to set the SMBus address

J16 ADDR1

J19 EN_SMB 4-level input to select between SMBus

controller (float) or target mode (high)

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Table 4-1. Description of SMBus and EEPROM Connections (continued)

COMPONENT(S) NETS INCLUDED DESCRIPTION

J12 READ_EN_N Assert low to initiate EEPROM read in

SMBus controller mode (weak pull-up)

XU1 EEPROM 8-pin DIP Socket for EEPROM

J2 CAL_CLK_IN External 25 MHz Calibration Clock Input (for pin-

compatible Retimer only)

J1 CAL_CLK_OUT 25 MHz Calibration Clock Output (for pin compatible

Retimer only)

J9 VDD_3P3V 3.3 V for DC Power

J11 VDD_2P5V 2.5 V for DC Power

J7 GND Ground for DC Power

J22 USB Mini USB connection for EVM software control

Table 4-2. Test Point Connections (Output Voltage)

Component Name Description

TP1 GND Common Ground

TP2 VDD +2.5 V Input

TP5 GND Ground

TP3 VDD +3.3 V Input

5 SigCon Architect

The SigCon Architect software allows for simple configuration of the DS560MB410.

5.1 Installation

Prerequisites:

• SigCon Architect 3.0

1. Use your web browser to download the DS560MB410 SigCon Architect profile installer from the product

page on TI.com.

2. Once the installer has downloaded, extract the installer from the .zip file and run the executable file.

3. When the executable runs, a setup wizard will appear as shown in Figure 5-1. It is recommended to close

any running programs prior to proceeding.

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Figure 5-1. DS560MB410 Profile Installer

4. Read through the licensing agreement, and accept the terms of the agreement by selecting I Agree.

Figure 5-2. DS560MB410 Profile License Agreement

5. When complete, the user will be presented with an Installation completed window, shown in Figure 5-3.

Press Finish to continue. If Run SigCon Architect EVM GUI v3 is selected, then SigCon Architect 3.0 will

open.

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DS560MB410EVM 5

Figure 5-3. DS560MB410 Profile Installation Complete

5.2 Configuration

The Configuration Page is used for establishing communication with the DS560MB410. Figure 5-4 shows how

prior to establishing a connection with the DS560MB410, the other profile pages will be unselectable, indicated

by their gray color.

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Figure 5-4. DS560MB410 Profile Prior to Establishing Communication

5.2.1 Establishing a Connection

1. Connect the computer to the DS560MB410 through a USB2ANY device and USB cable. If using a

DS560MB410EVM, then this is accomplished by connecting the included USB cable to the EVM and

computer. If using a stand alone USB2ANY device, then a connection can be made between the I2C pins on

the USB2ANY and the SMBus pins on the DS560MB410. A common ground connection is also required.

2. Ensure the DS560MB410 is in SMBus Target mode.

3. Select appropriate SMBus address by using the Target Address menu.

4. Select appropriate USB2ANY by using the USB2ANY Details menu.

5. Click Apply to connect to the device. The status indicator at the bottom of SigCon Architect will turn green to

indicate a successful connection.

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Figure 5-5. Establishing a Connection with the DS560MB410

5.2.2 Enabling Demo Mode

Demo mode can be used to test out device behavior of the DS560MB410 profile without connecting a

DS560MB410.

1. Select the checkbox by Demo Mode in the top right corner of SigCon Architect.

2. Click the Apply button to enter Demo Mode.

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Figure 5-6. Enabling Demo Mode

5.3 High Level Page

The High Level Page is used to view channel status and configure commonly used channel settings. The

majority of device settings used in a typical use case can be configured through the High Level Page. Additional

device settings can be accessed through the Low Level Page.

5.3.1 Device Status

The Device Status tab shows a high level overview of the status of each channel in the DS560MB410. Although

a summary of channel settings can be viewed from this this tab, they cannot be changed from this tab. Channel

settings that are displayed in this tab can be changed from the Block Diagram tab.

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Figure 5-7. Device Status Tab

Table 5-1. Device Status Settings and Buttons

Seting or Button Name Behavior

Update Time Sets the time interval at which the device status is updated. This is only in use while

Continuous Status Update is checked.

Channel Select This setting is persistent when switching between the Device Status, Block Diagram, and

Crosspoint Switch tabs. This selection is only used in the Block Diagram tab.

Refresh From Device Reads register data from the device. This data will then be updated in the DS560MB410

Profile pages.

Reset Device Resets all device registers to their default values.

Load From File Opens a window allowing the user to select a file with register data. Once the appropriate file

is selected, register data from the file will be written to device registers.

Save To File Opens a window enabling the user to save device register data to their computer. This file

contains data for all of the device registers.

Continuous Status Update When checked, the registers from the device will be polled at the rate set by the Update

Time setting.

5.3.2 Block Diagram

The Block Diagram tab allows for configuration of channel registers that are pertinent to most use cases. Each

parameter can easily be adjusted by selecting the appropriate value from the drop down menus

It is important to select the appropriate channel through the Channel Select drop down menu in the top left prior

to adjusting the channel settings. Unapplied changes will not be saved when the channel is changed. To apply

changes, click Apply to Channel. To apply changes to all channels, click Apply to All Channels.

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