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Page Title:
Peripheral Equipments Contained Within Logic Unit 1 and Digital |
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|  MIL-D-81347C(AS)
3.5.1.4.2.5
Interface
Requirements - R e f e r to Figure 5, the functional flow
diagram for the DOM.
3.5.1.4.2.5.1
Format of Output Word to Digital Output Multiplexer from
Computer - Refer to Figure 4.
Figure 4. Format of Output Word to Digital Output Multiplexer from Computer
(1) Field A - Represents the address of the peripheral equipment
which shall receive the channel Output Acknowledge indicating that the peripheral equipment should
sample the data lines from the DOM.
(2) Field B - Represents the data for the peripheral equipment,
(3) Field C - A general clear to all DIM-DOM internal charnels.
3.5.1.4.2,5.2
Computer to Digital Output Multiplexer via Maintenance Control
Panel - Communications between the Computer and the DOM shall be in accordance with Appendix I
and the Maintenance Control Panel description in 3.5.1.4.9.
3.5.1.4.2.5,3
Peripheral Equipments Contained Within Logic Unit 1 and Digital
Output Multiplexer
Signal Characteristics
3.5.1.4.2.5.3.1
(1) logical "0" = 0.0=0.5-0.0 volts
logical "1" = +5 1.5 volts
(2) Channel Output Acknowledge Signal - The DOM shall transmit
a Channel Output Acknowledge signal to a peripheral equipment when bits 15 - 18 of an output word
from the computer contain the binary equivalent of the `peripheral equipment channel address. The
channel addresses for each of the peripheral equipments are shown in the functional flow diagram for
the DOM (Figure 5). The Channel Output Acknowledge shall be a logical "l" signal of 2.2 microsecond
minimum duration.
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