FastScan and FlexTest Reference Manual, V8.6_4
2-108
Add Read Controls Command Dictionary
Add Read Controls
Tools Supported: FastScan and FlexTest
Scope: Setup mode
Usage
ADD REad Controls 0 | 1primary_input_pin...
Description
Adds an off-state value to read control lines.
The Add Read Controls command defines the circuit read control lines and
assigns their off-state values. The off-state value of the pins that you specify must
be sufficient to keep the RAM outputs stable. You can use clocks, constrained
pins, or equivalent pins as read control lines if their off-states are the same.
Arguments
•0
A literal specifying that 0 is the off-state value for the read control lines.
•1
A literal specifying that 1 is the off-state value for the read control lines.
•primary_input_pin
A required repeatable string that specifies the primary input pins you designate
as read control lines and to which you are assigning the given off-state value.
Examples
The following example assigns an off-state value of 0 to two read control lines, r1
and r2:
add read controls 0 r1 r2
set system mode atpg
add faults -all
run