Smartframe Chip Test

Please follow the instruction below to test your smartframe chip and finish the test report.

For the internal structure of smartframe, please refer to http://vlsi1.engr.utk.edu/~amiller/smartframe.html.

When you get your smartframe chip back from MOSIS, it should look like this.

            ___ ___

     NC   1|   U   |40  GND

     S0   2|       |39  NC

     S1   3|       |38  NC

   NoGo   4|       |37  NC

     Go   5|       |36  Out7

   Done   6|       |35  Out6

   Out1   7|       |34  Out5

   Out0   8|       |33  Out4

  Reset   9|       |32  Out3

  Clock  10|       |31  Out2

    Sel  11|       |30  B0

Inv_Out  12|       |29  B1

 Inv_In  13|       |28  B2

    B13  14|       |27  B3

    B12  15|       |26  B4

    B11  16|       |25  B5

    B10  17|       |24  B6

     B9  18|       |23  B7

     B8  19|       |22  NC

     NC  20|_______|21  VDD

Equipments and Setting

In order to test the smartframe chip, we need the following equipments.

You can find all of them from FH508. This lab is open 10:00AM – 8:00PM (M-S) for this semester (Spring 2004).

1. Test Board

The test board has DC power input (VDD, GND) and clock input on the most left side. You will also use the BIST/User switch, Reset button, and design selection (S0 S1) on the bottom. On the right side, there are input switches and output display for User mode. The three LEDs (“Go” in green, “No Go” in red, and “Done” in red) on the left top are output for the BIST mode.

2. DC Power Supply Tektronix PS 280

Connect the fixed 5V on the right bottom to the test board.

3. Multimeter HP 34401A

This is used to measure the output voltage from the DC power supply.

4. Function Generator HP 33120A

The function generator inputs clock to the test board.

Push FM button

Set Frequency to 100Hz. Recommend beginning from a lower frequency (100Hz or less).

Set Amplitude to 2.5V P-P

Set Offset to 1.25

Connect cable from “Output” on the right side to the test board or oscilloscope.

5. Oscilloscope Tektronix TDS 340A

This oscilloscope is used to verify the signal generated from the function generator.

Chip Testing

Connect the power supply and clock to the test board

Power on the power supply

Select design

Switch the Mode to BIST

Push reset button

Wait for a while, the “Done” should first light on, then one of the “Go” or “No Go” will light on. If the frequency is very low, you would wait for a little longer, depending on your design.

If your design works on low frequency, increase frequency on function generator and push reset button every time.

Measure the maximum frequency your design could work on.

It would be perfect if the BIST mode works well (“Done” and “Go”). If not, you can use User mode to test the functionality of your design.

Switch to User mode

Set input on the switches

Push reset button

Check the output display

If your design works on low frequency, increase frequency on function generator and push reset button.