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1. 4 ,STORAGE PRCTECTION FEATURES (FIGURES 1-24 THROUGH 1- 26)
Y-Axis
~
0
2
3
4
5
6
7
1
Program storage keys, 0-48K
2
(24 blocks)
X-Axis
4
3
X=0-3, Y=0-5, Z=0-3
5
Channel operations keys for 32 subchannels
6
X=4-7, Y=0-7, Z=0-3
?,__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _,
0
1
2
Z-Axis
~t------------------r
(Data)
5
Communications keys for 32 subchannels
6
X=4-7, Y=0-7, Z=4-7
7.._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
P
Parity
Figure 1-24.
STPl Allocations Map
0
2
0000-
2000-
4000-
0
07FF
27FF
47FF
0-2K
8-10K
16-18K
0800-
2800-
4800-
OFFF
2FFF
4FFF
2-4K
10-12K
18-20K
1000-
3000-
5000-
2
17FF
37FF
57FF
4-6K
12-14K
20-22K
1800-
3800-
5800-
3
1FFF
3FFF
5FFF
6-8K
14-16K
22-24K
Y-Axis**
3 - - 4
6000-
8000-
67FF
87FF
24-26K 32-34K
6800-
8800-
6FFF
8FFF
26-28K 34-36K
7000-
9000-
77FF
97FF
28-30K 36-38K
7800-
9800-
7FFF
9FFF
30-32K 38-40K
5
AOOO-
A7FF
40-42K
A800-
AFFF
42-44K
8000-
87FF
44-46K
8800-
8FFF
46-48K
6*
COOO-
C7FF
48-50K
C800-
CFFF
50-52K
0000-
07FF
52-54K
0800-
OFFF
54-56K
7*
EOOO-
E7FF
56-58K
E800-
EFFF
58-60K
FOOO-
F7FF
60-62K
F800-
FFFF
62-64K
*
These columns are shown for reference only. The storage locations repre-
sented are never used for program storage, and thus are not subject to the
storage protection feature.
**For systems with less than 48K bytes of program storage, the locations
above the installed program storage are not protected.
Figure 1-25.
STPl Allocations for Program Storage
0
2
3
4
5
6
7
4 00-07
20-27
40-47
60-67
80-87
AO-A7
CO-C7
EO-E7
( 1)
(5)
(9)
(13)
(17)
(21)
(25)
(29)
5
08-0F
28-2F
48-47
68-67
88-8F
A8-AF
C8-CF
E8-EF
(2)
(6)
(10)
(14)
(18)
(22)
(26)
(30)
- X-Axis
10-17
30-37
50-57
70-77
90-97
80-87
00-07
FO-F7
6 (3)
(7)
( 11)
(15)
(19)
(23)
(27)
(31)
7 18-1F
38-3F
58-5F
78-7F
98-9F
88-8F
08-0F
F8-FF
(4)
(8)
(12)
(16)
(20)
(24)
(28)
(32)
Note: For channel operations, bits 0-3 (Z-axis) are used for a maximum
of 32 keys (shown in parentheses).
For communications channel operations, bits 4-7 are used for a
maximum of 32 keys.
Figure 1-26..
STPl Allocations for Channel and Corrrounications Channel Operation
2025 FEMM (7/69)
1-19
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