EE 476: Homework 1

due At the start of your first lab period.
  1. Read all of Lab 1.

  2. Reading from the schematics in the hardware description, determine:
    1. if the LEDs are lit when a logic high or low is applied to the connector.
    2. if the switches outputs are logic high or low when pushed.

  3. Estimate the Thevinin equvalent output resistance of an i/o pin from the AT90S8515 data sheet. There will be two separate estimates corresponding to whether the output is logic-high or logic-low.

December 2000