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Cromemco Manuals
Computer Hardware
MAXIMIZER
Manual
Cromemco MAXIMIZER Manual
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Contents
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Table of Contents
Table of Contents
Chapter 1: INTRODUCTION
Hardware Specifications
Software Specifications
Applications
Figure 2-1: Maximizer Coprocessor (Max-C) Board
Chapter 2: INSTALLATION
Jumpers
Cabling
Figure 2-2: MAXIMIZER I/0 COPROCESSOR (MAX-I) BOARD
Installation Procedure
Table 2-1: Connector J1 Pin Assignments and Signals
In Case of Difficulty
Table 2-2: S-100 BUS CONNECTOR PIN ASSIGNMENTS and SIGNALS
Chapter 3: THEORY of OPERATION
Introduction
Figure 3-1 : Maximizer Block Diagram
Data Paths
Address Paths
Microcode RAM and ROM (Max-C)
Instruction Sequencer (Max-C)
Arithmetic Logic Unit (Max-C)
Shift, Carry, Loop and Test Logic (Max-C)
Data RAM (Max-I)
Multipli er (Max- I)
Flag and Squirrel Registers (Max-C)
S-100 Interface and State Circuits (Max-I)
1/0 Register Control (Max-I)
C-Bus Interface and State Circuits (Max-I)
Clock (Max-C)
Power Supply
Microcode Word Description
Auxiliary Control Field
1/0 Control Field
2901C Control Field
Figure 3-2: Basic Fields and Bit Positions
A Address Field
B Address Field
Branch, Immediate, and Data RAM Field
Processor Control Point
Cycle Time Period
Figure 3-3: AUXILIARY CONTROL FIELD
Condit Ional Sequence/Test Modes
Carry-In Bit (Inverted)
Shift Modes
Immediate To/From Yout
Output Clock Enables
Figure 3-4: Input/Output Field
External Bus Input Clock Enables
Input Enables
Figure 3-5: 2901C Control Field
Table 3-1: a LU Destination and Shift Control
Table 3-2: Carry Bit/Flag and OVR Flag for Various
ALU Functions
Table 3-3: SOURCE OPERAND and ALU FUNCTION MATRIX
Figure 3-6: Test and Processor Control Points
Field of Conseq/Test Modes
Figure 3-7: CONDITIONAL SEQUENCER FIELD
Conditional Sequencer Test Field
Implicit Branch Field
Polarity Bit
Condseq/Test Modes
Processor Control Points Field
Polarity Bit
Appendix A: Parts List Max-C
Appendix B: Parts List Max-I
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Cromemco
,~
MAXIMIZER
Board Manual
December 1984
CROMEMCO,
Inc.
P.O. Box
7400
280 Bernardo
Avenue
Mountain View,
CA
94039
023-2034
Hn. R
Copyright
©
1984
CROMEMCO,
Inc.
All
Rights Reserved
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