Command Dictionary Set Capture Handling
FastScan and FlexTest Reference Manual, V8.6_4 2-445
Old — A literal that specifies for FastScan to determine the output value of
a level sensitive source state element by using the data that existed prior to
the current clock cycle. FastScan then passes this value to the state
element’s sink state elements. This is the default behavior of FastScan upon
invocation.
New — A literal that specifies for FastScan to determine the output value of
a level sensitive source state element by using the data from the current
clock cycle. FastScan then passes this value to the state element’s sink state
elements. FastScan limits the scope of this capture handling effect to the
circuitry between the source and sink points. FastScan will not proagate the
newly captured effect past the sink point.
X — A literal that specifies for FastScan to determine the output value of a
level sensitive source state element by using the data from the current clock
cycle unless the previous values are different from the current values. If the
values differ, FastScan passes an unknown (X) value to the state element’s
sink state elements.
•-Te Old | New | X
A switch and literal pair that specifies how you want FastScan to handle the
data capturing of trailing edge sensitive state elements. The literal choices are
as follows:
Old — A literal that specifies for FastScan to determine the output value of
a trailing edge sensitive source state element by using the data that existed
prior to the current clock cycle. FastScan then passes this value to the state
element’s sink state elements. This is the default behavior of FastScan upon
invocation.
New — A literal that specifies for FastScan to determine the output value of
a trailing edge sensitive source state element by using the data from the
current clock cycle. FastScan then passes this value to the state element’s
sink state elements. FastScan limits the scope of this capture handling effect
to the circuitry between the source and sink points. FastScan will not
proagate the newly captured effect past the sink point.
X — A literal that specifies for FastScan to determine the output value of a
trailing edge sensitive source state element by using the data from the
current clock cycle unless the previous values are different from the current