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Page Title:
Table 4-1. Controls and Indicators (Cont'd) |
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 T.O. 31S5-4-308-1
TM 11-5805-663-14-13
NAVELEX 0967-464-0010
Table 4-1. Controls and Indicators (Cont'd)
FUNCTION
TYPE
NAME
Clears the address switch indicators to 000016.
Touch response
address
indicator switch
clear
The data switch indicators are used to code and
Touch response
data 0
indicator switch
generate the data to be written into the location
through 15
selected by the address or register switches. The
location can be in Core Memory or a selected
Processor register. The switches operate the
same as the address switches and the indicators
are also used to display the data read from any
address or register location.
Clears the data switch indicators to 000016.
Touch response
data Clear
indicator switch
Indicator is on for at least 0.1 second when the
Indicator
busy
INFIBUS is busy with at least one bus transfer.
The indicator is on when a bus access with the
Indicator
done
Program Maintenance Panel as the master is
successfully completed. In case of an abort,
the indicator is off. The indicator is used only
with the following switch actions:
a . register write
b. register read
address write
C.
d. address read
e . run
halt
f.
g adn
h. step
An access by the attn switch (which accesses on
external interrupt level 1 instead of on the direct
data transfer level) does not use the indicator.
Touching the switch forces the CPU to resume
Touch response
run
executing instructions as long as the done
indicator switch
indicator remains on. The indicator is on as long
as the one processor is executing instructions.
However, if the CPU is waiting for an external
interrupt, then the idle indicator is on. After
the CPU has halted program execution, the halt-
-
The run and halt indicators
indicator turns on.
4-5
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