IBM 2025 Maintenance Manual page 14

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ADDRESS BITS
=
12, 13, 14
ADDRESS BITS
=
1, 9, 10, 11
000
0000
BIT 12
=
0
0 0 1
0001
0
1
0
0010
BIT
9
=
0
0
1 1
0 0 1 1
\..
B2C2
B2D2
BIT 1
=
0
0 1 0 0
0 1 0 1
0 1 1 0
BIT 9
=
1
0 1 1 1
B2D4
1.,1
1 0 0 0
1 0 0 1
1 0 1 0
BIT 9
=
0
1 0 1 1
B2T2
BIT 1
=
1
1 0 0
1 1 0 0
1 1 0 1
1 0 1
1 1 1 0
1 1 0
1 1 1 1
1 1 1
BIT 12
=
1
BIT 9
=
1
""-
B2C4
B2T4
1.....1
Figure 1-5 .. Core-Storage Y-Decodes
1-4 (7/69)

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