4 EEPROM Page

The SigCon Architect GUI's DS320PR410 profile can be used to generate an EEPROM file in Intel™ Hex format for a single redriver or multiple DS320PR410 redrivers. When the DS320PR410 is configured in SMBus/I²C primary mode (MODE = L1), the redriver loads the settings stored in an external EEPROM upon power-up. The user can configure those settings using the EEPROM Page. The following section provides an example of how to navigate the DS320PR410 GUI EEPROM Page and create an EEPROM hex file.

In this example, eight DS320PR410 redrivers are present. EQ Index 2 is selected for devices at addresses 0x18, 0x1A, 0x1C, 0x1E and EQ Index 5 is selected for devices at addresses 0x20, 0x22, 0x24, 0x26) For each device, the same value is used for every channel. For programming fewer or additional devices, decrease or increase the number of devices (No. of Devices) and configurations (No. of Configs) as needed.

1. Multiple devices can be programmed at once. Select the number of devices and the number of configurations using the menus shown in Figure 4-1. Up to 32 different configurations can be created and assigned to each device and channel, if desired.
   
   

   

   
   Figure 4-1 EEPROM Page: Number of Configs and Number of Devices
2. To program the first device, select Configuration 0 and Device 0 from the respective drop-down menus, Config Select and Device Select. Note the Config Assignment Tree shows the hex address of each device (0x18 for Device 0). Verify that the Data Length is set to 3, as 3 bytes of data are needed to program the DS320PR410. Each of these menus are shown in Figure 4-2.
   
   

   

   
   Figure 4-2 EEPROM Page: Config Select, Device Select, and Configuration Assignment Tree
3. To select the desired channel or channels, choose an EQ Index from the drop-down menu. The EQ Index drop-down automatically adjusts the EQ Boost 1, EQ Boost 2, and EQ Boost 1 (2nd Order) fields. Select the desired EQ DC Gain. Note in the Config Assignment Tree that the channels of Device 0 selected using the Channel Selectdrop-down menu are configured using Configuration 0. Continue this process for each Device and Configuration, selecting the appropriate EQ Index and EQ DC Gain for each. Each of these drop-down menus are shown in Figure 4-3.
   
   

   

   
   Figure 4-3 EEPROM Page: Channel Select, EQ Index, and EQ DC Gain

   Optionally, the Major Channel Settings table can be used to check each device's EQ settings. The device drop-down menu can be used to select the desired device for viewing as shown in Figure 4-4.

   
   

   

   
   Figure 4-4 EEPROM Page: Major Channel Settings
4. After all devices have been configured, click the Write to EEPROM button to write the external EEPROM with the new settings. The button indicator turns green when the write is completed, as shown in Figure 4-5.
   
   

   

   
   Figure 4-5 EEPROM Page: Write to EEPROM
5. To save the current EEPROM settings configured using the GUI into a hex file, click the Write to EEPROM Hex button shown in Figure 4-6 to write a hex file with these settings. Save the hex file to any desired location using the File Explorer.
6. To load EEPROM settings back into the GUI from a hex file, click the Load from Hex File button. Select the desired hex file to load from the File Explorer. If the user desires to write these settings to an external EEPROM connected to the accessed SMBus lines, click the Write to EEPROM button and wait for the green Write Successful indicator to appear to indicate a successful EEPROM write.
7. To load EEPROM settings into the GUI from an external EEPROM connected to the accessed SMBus lines, click the Load from EEPROM button.
   
   

   

   
   Figure 4-6 EEPROM Page: Load from EEPROM, Load from Hex File, Write to EEPROM Hex