Mentor v8.6_4 manual Pi Ia Pi Ib Pi E

FlexTest Test Pattern File Format Test Pattern File Formats

SETUP =

DECLARE INPUT BUS “ibus” = “/IA”, “/IB”, “/E”, “/IOA”, “/IOB”;

DECLARE OUTPUT BUS “obus_1” = “/IOA”, “IOB”; END;

CYCLE_TEST = CYCLE = 0;

FORCE “ibus” “100ZZ” 0; MEASURE “obus_1” “ZZ” 1; CYCLE = 1;

FORCE “ibus” “001ZZ” 0; MEASURE “obus_1” “00” 1; CYCLE = 2;

FORCE “ibus” “111ZZ” 0; MEASURE “obus_1” “11” 1;

END;

To use style 1a, the user needs to know if the control line is a 1, then the data will be the output value. To use style 1b, the user need to know if the control line is 0, then the data will be the output value. Let’s assume it is style 1a.

To create the control section, all the primary inputs and primary outputs, as well as the inout pins with its control pin, should be listed:

PI IA

PI IB

PI E

IO_C1 G1

IO_DA IOA G1

IO_DA IOB G1

G1 is the control name given to IO_C1. Since the enable line of the tri-states are connected together, IOA and IOB share the same control name. To create the data section, each line will correspond to one test cycle. Thus, we get the following:

1000ZZ

001100

111111

When IO_C1 is 1, then IOA and IOB will be the output values. Conversely, when IO_C1 is 0, then IOA and IOB will be the input values.

4-26 FastScan and FlexTest Reference Manual, V8.6_4