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WARN IN G
8
IO mapping
There are three main control bits used in the U2121A- 101 as shown
in tables below. These control bits also refers to the U2121A control
bit status.
Table 4
Output enable/disable control
Control Stage
Control Bit, DO14
Output disabled
OFF (0)
Output enabled
ON (0)
Table 5
Position information read back control
RF Switches
Control Bit
D16
8765x and 8762/3/4
OFF (0)
N181x
ON (1)
DO NOT set both D15 and D16 control bits to ON stage!
Description
To disable all outputs in U2121A
To enable all outputs in U2121A
Description
D15
ON (1)
Read position information from 8765x and
8762/3/4 series switches
OFF (0)
Read position information from N181x
series switches
U2121A-101 Operating Guide
-
101
-
101
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