Hi team,
My customer is using TPS65910A31 to power AM3358.
In AM3358 EVM schematic as below, it configures BOOT1=1 and BOOT0=0
But in TPS65910A31 datasheet, it only gives the power up sequence of 'BOOT1=0, BOOT0=0' and 'BOOT1=0, BOOT0=1' on Figure 5-1 and Figure 5-2 . So could you please help on:
1. Can you confirm whether we should use BOOT1=1, BOOT0=0 for AM3358?
2. Can you provide the power up sequence of BOOT1=1, BOOT0=0?
Best regards,
Wayne
Hi Phil,
Thanks for the reply. One more question about the 'TPS65910Ax User's Guide for AM335x Processors' doeument.
In the document, the connection between AM335x and TPS65910A31A1 is as below. 65910's PWRHOLD pin is connected to AM335x's PMIC_PWR_EN pin
And as below picture shows: AM335x's PMIC_PWR_EN pin will pull PWRHOLD pin high to enable 65910 start up process after VRTC is powered up.
So my question is that does PWRHOLD pin have to be connected to AM335x's PMIC_PWR_EN pin? Can we directly pull PWRHOLD pin to VRTC throught a pull up resistor without connecting to AM335x? Thanks.
Best regards,
Wayne
