GPIO and SIO

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GPIO and SIO

• GPIO (General Purpose I/O) is an interfacing
  technology comprised of a group of I/O pins
  (usually 8 or more) used to read input, write
  output, or both.
• Separate pins are usually individually
  programmable as either an input, output, or both.
  In some devices groups of pins are configured
  together.
• Different I/O registers with corresponding I/O
  addresses are used to configure pin I/O
  direction, read, and write data.
• GPIO peripherals are usually capable of
  generating CPU interrupts and driving data via
  DMA.
• Drivers can be written to provide applications
  with a n API to control and access GPIO pins.
• See TS3300 users manual DIO
• http//www.embeddedarm.com/products/board-detail.
  php?productTS-3300
• Serial I/O See serial port tutorial
  http//www.beyondlogic.org/serial/serial.htm
• See TS3300 users manual Serial I/O