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Control Data Corporation CYBER 180 810 Maintenance And Parts Manual page 89

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CM MAINTENANCE REGISTERS
Table 5-3 lists the CM maintenance registers.
TABLE 5-3.
CM MAINTENANCE REGISTERS
Direct Mac
Number
Address
Type
Register
Read/Write
of Bits
(HEX)
Code
Status Summary
Read
8
00
E
Element ID
Read
32
10
E
Options Installed
Read
24
12
E
Environment Control
Read/Write
40
20
E
Bounds
Read/Write
64
21
E
Corrected Error Log
Read/Write
64
AO
E
Uncorrected Error Log 1
Read/Write
64
A4
E
Uncorrected Error Log 2
Read/Write
64
AS
E
Free Running Counter
Write (Reset)
48
BO
E
CM MAINTENANCE REGISTER BIT ASSIGNMENT.
Bit assignments are listed on the following pages in the order they appear in
table 5-3.
Register
Status Summary
*
Element ID
Options Installed
56,57
58-60
61
62
63
32-39
40-47
48-63
0,2,4,10,
13-15, 22-23,
1
3
5
Description
Master oscillator module frequency select
(00
=
normal, 01
=
-23, 10
=
+23)
Not used (zero)
Uncorrected error
Corrected error
Long warning
Element: 01 (hex)
Model: 10 (hex)
Binary-coded-decimal representation of
serial number
Not used (zero)
2
Megabytes (MB) memory installed
4 MB memory installed
64 MB memory installed if bit 12=1
*
Bits are dynamic and cannot be set or cleared directly.
60469500 B
5-13

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