TM 11-6625-3081-23
2-14.
MODULE DESCRIPTIONS (cont)
2-14
e. COMMON MODULES
Input Code
PLLBUS
Description
This module tests the ability of the parallel bus to transfer 16
bits of information in parallel. The built-in, self-test
feature of the parallel bus is used to check out the data and
handshake lines of the interface.
If an error is detected during the following checks, a prompt is
displayed at the completion of the test.
The following numbers are output to the parallel bus self-test
address and the input value from the parallel bus self-test
address to the AN/USM-410 is checked for the same value.
Output -1 (all ones), O (all zeros), 1 (bit O), 2 (bit 1), 4
(bit 2), 8 (bit 3), 16 (bit 4), 32 (bit 5), 64 (bit 6),
(bit 7), 256 (bit 8), 512 (bit 9), 1024 (bit 10), 2048 (bit 11),
4096 (bit 12), 8192 (bit 13), 16384 (bit 14), -32768 (bit 15),
21845 (even bits), and -21846 (odd bits).
Change 9
2-85
