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Page Title:
Table 5-3. Microprocessor Strobes |
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 TM 11-5865-215-13
Microprocessor Strobes - Continued
Output
In/out
control
Associated
strobe
bits
Function
hardware
used
3210
Positive display strobe*
I/O bus bit
1001
2 1
0
Generated
000
DS1
DS2
0
0
1
DS3
0
1
0
DS4
0
1
1
DS5
0
0
1
DS6
0
1
1
CCA A7,
Column strobe.
Out
1010
CCA A5,
CCA A2
This strobe loads the column select data from
the I/0 bus into the select decoder on CCA A2.
The data select the column of the key lamp to
be lit.
I/O bus bit
Selected column
32 -- 0
1 -
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
1
0
0
1
A
1
0
1
0
B
1
0
1
1
Row strobe.
CCA A7,
Out
1011
CCA A5,
This strobe loads the row select data from
CCA A2
the I/O bus into CCA A2. The data select the
row of the key lamp to be lit:
I/O bus bit
3210
Selected row
1st
Row
0
0
0
1
2nd
Row
0
0
1
0
3rd
Row
0
1
0
0
4th
ROW
1
0
0
0
* This signal name also defines the front panel display digit used.
5-11
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