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(1)
5-B14-l5, 17 outputs are ones
(2)
5-B14-8, 10 outputs are zeros
(3 )
5-B14-l2, 16
outputs are zeros
(4)
5-B14-7 output is zero
(5)
5-B14-6 output is one
(6)
5-B14-9, 11 outputs are zeros
(7)
3-B17-l output is one
(8)
3-B17-6 output is zero
The outputs of 5-B14-8, 12, 7, and 9, being zeros simultaneously will inclusively
OR the
Ready, Busy, Interrupt and Data status outputs from all four controllers
into the four outputs of the TG module (page 5).
These four outputs transfer to
the TG module at location BlO (page 7) as the four lowest bits of the
status.
The outputs
of 5-Bl4-l0, 16, and 11, being zeros simultaneously with 5-Bl4-6
being a logical
Ill",
will inclusively OR the Protected, Alarm, Lost Data,
and
End of Operation status outputs from those
controllers which provide these
status indications.
The four status outputs of the 202 module transfer to the
TG module at
location B09 (page 7) as bits 04 through 07
of the status.
These
eight bits form the entire equipment status which is transferred via the TG
modules at locations B09 and BlO (page 7) to the computer A Register fan-in.
The logical
110 11
at 3-Bl7-6 will generate a Reply to the computer.
The computer
then transfers this status into the lower 8 bits of the A Register (zeros
transfer into the upper 8 bits) and continues with the program.
One
important
use of the equipment status is
in checking interrupts.
It
should be remembered that the low speed interrupt is ORed with external interrupt
line #1.
If a level 1 interrupt occurs, the programmer can determine if it
1-6
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