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AM3356 - EEPROM related

Naveen M94353
Prodigy 90 points
Other Parts Discussed in Thread: TPS65910, TPS65910A1. As per the the evaluation board schematic of AM335X baseboard, the power management IC's pin BOOT0=0 and BOOT1=1. Datasheet of power management IC (TPS65910) tells(Page NO:42)that as per the above mode booting is depends upon EEPROM sequence. But the EEPROM's supply is connected to VDDSHV6/VUAX2. If the EEPRROM is powered from Power management IC and it has to configured from the same EEPROM. The logic has some mistakes. Please clarify... At the time of production, at which stage the EEPROM is configured. 2. There are Two I2C interfaces in the Power management IC.Whether These two I2C has to be used for the proper operation? In one of the TI ref schematic we found like that. Development Board sch refered are: AM335X 15X15 ICE BOARD AM335X EVM 15x15 Baseboard
  • 0
    TI__Guru 68950 points

    The TPS65910 datasheet is referring to an internal EEPROM.  This allows the same PMIC to be used with different power sequencing.  The EEPROM on the board is totally unreleated and is used for board identification.

    regards,

    James

  • 0 in reply to JJD
    TI__Intellectual 1835 points

    James,

    Can you please also explain the connectivity of the following pins on the TPS65910A:

    1. SCL_SCK

    2. SDA_SDI

    3. SDASR_EN2

    4. SCLSR_EN1

    The customer is not clear on the purpose and the usage of these connections.

    The board identification EEPROM is  for TI's software to determine what board is the software running on. It enables correct loading of drivers as not all peripherals are used in all the boards where the SDK software might be loaded.

    Thanks.