1 Reply Latest reply on Oct 31, 2020 4:48 AM by YatheeshK_36

    CY7C65215A GPIO Tristate

    bemc_4809516

      Hi,

       

      I am working on the configuration for a product using the CY7C65215A and have a question regarding the GPIO.

       

      The device is using both SCB0 (SPI) and SCB1 (I2C) and all other GPIO are unused.

       

      The unused GPIO can be configured as either: 'Tristate', 'Drive 1', 'Drive 0', or 'Input'.

       

      I have found a Knowledge Base article that states that the GPIO when configured as 'Input' need to be pulled to a defined state, but what about Tristate?

       

      When set as Tristate the output is disconnected, but is the input function of the GPIO kept in a defined state or does it also require an external pull-up/down?

       

       

      Thanks.