NCR Century 200 Manuals

Manuals and User Guides for NCR Century 200. We have 1 NCR Century 200 manual available for free PDF download: Reference Manual

NCR Century 200 Reference Manual (304 pages)

Brand: NCR | Category: Computer Hardware | Size: 14 MB

Table of Contents
2
Introduction
6
The NCR Century 200 Processor
6
The NCR Century 200 System
6
Extended Memory
7
Extended Bandwidth
7
Extended I/O Simultaneously
7
Multiprogramming
7
Floating Point Option
8
Logic and Table Compare Commands
8
Multiply Command
8
Interval Timer
8
Thermal I/O Writer
9
Remote I/O Writer
9
Operator Alarms
9
Peripheral Options
10
Memory
11
Physical Description
11
Data Representation
11
NCR Century Code Chart
11
Examples of Data Representation
12
Memory Addressing
12
Conversion Table
13
Hexadecimal/Decimal Conversion
14
Index Registers
15
Index Registers and Reserved Memory Areas
16
Functional Description
18
Memory/Processor Communication
18
Control
18
Timing
18
Functional Operation
19
Information Transfer
19
Arithmetic Logic Unit
20
Commands
20
Century Hardware Command Format
20
Command Code - Q
20
Index Register - RA
21
Indexing
22
No Indexing and Indexing
23
A2A1 Characters
26
Length
26
Index Register - RB
26
B2B1 Characters
26
Implied T and B Operation
27
Move a Right to Left
28
Add Signed
28
Compare Signed
28
Asynchronous Operation
29
Live Registers
29
Memory Registers
29
Special Registers
29
Processor Live Registers
30
Flags
31
Processor Flags
31
Indicators
32
Processor Indicators
32
Addressing
34
Address Flow to the Address Register
34
Adder
35
Data Flow through the Adder
35
Data Registers
36
Expanded Registers
37
Base System Registers
37
Command Setup and Execution
38
Between Commands Testing
39
Error Indicator
40
Memory Error
40
Program Error And/Or Trapping Command Code
41
Command Code Indicator
41
Repeat Indicator
43
Trace Permit
45
Interrupt Permit
46
I/O Control
47
General Description
47
Trunks
47
Common Trunk Concept
47
High-Speed Trunks
48
System Configurations
48
Base System
48
Quadraplex System
49
Octaplex System
49
Data
50
Bandwidth
50
Trunk Bandwidth
50
System Bandwidth
50
Peripheral Types
51
Integrated Peripherals
51
Freestanding Peripherals
51
Simplified Level
52
Selection
53
Peripheral Selection
53
The Peripheral Address Field
54
PAF Formats
55
S2 Status Character
55
Busy
55
Data Transfer
56
Standby
56
Inoperative
56
Command Initiated
56
I/O Control Operation
57
Response Number
57
Control Word
58
Standard Control Word Format
58
S3 Status Character Transmission
60
Termination
60
Normal Processor Termination
60
S3 Status Character
61
Normal Peripheral Termination
61
Special Peripheral Termination
61
Special Processor Termination
61
Operation Complete
62
Segment Complete
62
Error
62
System Overload
62
S4 Status Characters
63
Write Lockout
63
Special
63
Transmission Error
63
Latent Memory Error
64
Latent Program Error
64
Interrupt Permit and Interrupt Indicator
65
Options
67
Trace Option
67
Trace Execution
67
Trace with Monitor
68
Monitor Register
68
Extended Simultaneity Option
69
High-Speed Trunk Option
69
System I/O Bandwidth
69
Multiprogramming Option
70
User and Supervisor Starter
70
Base Addressing Register and Limit Address Register
70
BAR/LAR - User State
71
Command Setup and Execution - no Indexing
71
Indexing Specified
73
BAR/LAR - Supervisor State
74
LAR - Additional Function
74
BAR - Additional Function
75
Bar/Lar Functional Flow
75
Privileged Commands
76
The RESTORE Command
76
Status Word
76
Additional Console Features
77
The LOAD BAR Command
77
Extended Memory Option
78
Accuracy
78
Halt
78
Decrementation Without the Extended Memory Option
79
Decrementation with the Extended Memory Option
80
Incrementation
83
Compatibility
83
Decrementation or Negative Displacement
84
Incrementation or Positive Displacement
84
315 Compatibility Option
87
1401 Compatibility Option
87
Operator's Console
88
Integrated I/O Writer
89
Standard I/O Writer
89
NCR Century 200 Specifications
91
Physical Specifications
91
Environmental Specifications
91
Operating Limits
91
Basic Hardware Commands
94
Optional Hardware Commands
95
Examples
97

NCR Categories

Racks & Stands Touch terminals

Printer

Scanner

Monitor

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NCR Century 200 Reference Manual (304 pages)

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