Specifications

1260-14 User Manual
EADS North America Defense Module Specific Syntax 3-15
Test and Services, Inc. © 1992
SETUP ENABLE
command
Syntax: SE[TUP] <address>.EN[ABLE][,<ports>,<ports>,...]
<address>::= Module address of the 1260-14 (1-12)
<ports>::= One or more consecutive ports to write to. A single
port is specified as a decimal number from 0 to 11. A group of
ports is specified as two decimal numbers from 0 to 11 separated
by a hyphen, (-), with the lower numbered port to the left and the
higher numbered port to the right. For example, the command SE
1.EN,3-5 would write-enable ports 3, 4 and 5.
Description: This command write-enables the driver for each port
specified. All remaining drivers are tri-stated. When a port is
write-enabled, it is actively driving the last value written to the port.
If no values have been written to the port, all bits on the port will be
actively driving a low.
CAUTION:
Damage to the Digital I/O card or the user’s equipment could
occur if the user write-enables the output driver for a port
that is connected to a device that is also attempting to drive
the data lines.
A port may be read while it is write-enabled and will return the
current value that the port is driving. A port may be written to when
tri-stated, but the value will not become present on the port until
after it is write-enabled. It is the user’s responsibility to correctly
tri-state or write-enable the appropriate ports prior to synchronous
operations.
Example:
The command:
SETUP 1.ENABLE,1,4-6,11
would cause ports 1, 4, 5, 6 and 11 to start actively driving
values and would tri-state all the remaining ports.
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