Difference between revisions of "ETRA SOM/ETRA Hardware/Peripherals/IO expander"

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Latest revision as of 11:45, 8 January 2024

History
Issue Date Notes
2021/01/14 First Release



Peripheral I/O expander[edit | edit source]

The I/O expander peripheral is based on optional device, ADP5589 GPIO port that can be configured as either inputs or outputs.

Description[edit | edit source]

ETRA SOM has an optional device, ADP5589 GPIO port, which supports the following standards and features:

  • output states: push-pull or open drain + pull-up/down
  • input states: floating, pull-up/down, IRQ
  • keypad decoding for matrix up to 11 × 8
  • key press/release interrupts
  • dual programmable logic blocks
  • PWM generator
  • clock divider
  • reset generators

Please refer to the ETRA SOM part number composition for the related order code option.

Pin mapping[edit | edit source]

The Pin mapping is described in the Pinout table section