SNLU288 December   2020

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Description
    1. 2.1  DS160PR412 and DS160PR421 4-Level I/O Control Inputs
    2. 2.2  DS160PR412 and DS160PR421 Modes of Operation
    3. 2.3  DS160PR412 and DS160PR421 SMBus or I2C Register Control Interface
    4. 2.4  DS160PR412 and DS160PR421 Equalization Control
    5. 2.5  DS160PR412 and DS160PR421 RX Detect State Machine
    6. 2.6  DS160PR412 and DS160PR421 DC Gain Control
    7. 2.7  DS160PR412-421EVM Global Controls
    8. 2.8  DS160PR412-421EVM Downstream Devices Control
    9. 2.9  DS160PR412-421EVM Upstream Devices Control
    10. 2.10 Quick-Start Guide (Pin Mode)
    11. 2.11 Quick-Start Guide (SMBus Slave Mode)
  4. 3Schematics
  5. 4PCB Layouts
  6. 5Bill of Materials

2.11 Quick-Start Guide (SMBus Slave Mode)

  1. Configure all devices to operate in the SMBus Slave Mode by setting their MODE pins to the L1 level. This is accomplished by placing a shunt across pins 15–16 on JMP1, JMP2, JMP11, and JMP14 .
  2. Set a unique SMBus Slave address for each device by placing shunts in the following arrangement:
    • On JMP1 connector, place shunt across pins 1-2 L0, downstream device PR412_0.
    • On JMP2 connector, place a shunt across pins 3-4 L1 for downstream device PR412_1.
    • On JMP11 connector, place a shunt across pins 5-6 L2 for upstream device PR421_2.
    • On JMP14 connector, remove shunts across 1-2, 3-4, 5-6 so EQ0_ADD# pin is floating L3 for upstream device PR421_3.
  3. On JMP3-6, JMP9, JMP10, JMP15, and JMP16 move shuts from current position and install across pins 7-8.
  4. Enable all devices by pulling their PD pins to GND. This is accomplished by placing a shunt on JMP8 across pins 2-3.
  5. Connect USB2ANY Adapter to P4 (Note that the USB2ANY Adapter is not supplied with the DS160PR412-421EVM). Install shunt on JMP17 across pins 1-2.
  6. Install SigCon Architect Version 3.0.0.15 application and the DS160PR412-421 profile.
  7. Plug the EVM into a PCIe x16 server motherboard slot. Ensure the motherboard is powered down before installing the EVM or configured for hot-plug operation.
  8. Install a compatible PCIe endpoint card into the straddle connector of the EVM.
  9. Power-up the motherboard.
  10. Start the SigCon Architect application.
  11. Select the DS160PR412-421 Configuration Page and select the Apply box to enable the device profile. If necessary, edit device addresses in the Edit Device Addresses box.
  12. In the DS160PR412-421 High Level Page, select Block Diagram as shown in Figure 2-1.
  13. Select desired EQ Settings and Driver VOD.
  14. Select the devices to which you want to apply the selected settings and click the Apply to All Channels button.
GUID-20201109-CA0I-81PB-CNGM-VFKJ2VHPFH5W-low.jpgFigure 2-1 SigCon Architect DS160PR412-421 High Level Page