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AM-410
Alpha Micro AM-410 Manuals
Manuals and User Guides for Alpha Micro AM-410. We have
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Alpha Micro AM-410 manual available for free PDF download: Technical Manual
Alpha Micro AM-410 Technical Manual (191 pages)
DISK DRIVE CONTROLLER CIRCUIT BOARD SET
Brand:
Alpha Micro
| Category:
Computer Hardware
| Size: 10 MB
Table of Contents
Table of Contents
6
Paragraph Page
7
Figure Page
13
General Description
16
Introduction
16
Circuit Board Description
16
Application
16
AM-410 Simplified Block Diagram
18
Operating Data
20
Introduction
20
Capabilities and Specifications
20
Installation and Start-Up
23
Installation
23
Disk Drive Interface Cabling
24
System Start-Up
27
Interface Description
28
Bus Interface
28
Disk Drive Interface
28
User Options
33
Address Code
33
Interrupt Lines
33
Boot Option
33
Preparation
33
Programming
36
Introduction
36
Unique Software Considerations
36
PROGRAMMING (Continued)
36
Addressing
37
Initialization
37
Command Register
37
Status Register
38
Interrupt Mode
38
Handshake Sequence
38
AM-410 Status Words
40
DMA Buffer
42
Handshake Sequence
43
DMA Transfer Sequence
44
DMA Buffer Operation for Disk Write
45
DMA Buffer Operation for Disk Read
45
DMA Buffer Operation
45
Physical Address
46
Restore Command
46
Status Check
47
Functional Theory of Operation
48
Introduction
48
Circuit Board Operation
48
Addressing
60
Cpu Output
71
Command Data
72
Command Types
72
Output Data
77
CPU Input
77
Status Register
77
Status Word Formats
78
Input Data Register
78
Boot Load Procedure
78
Status Word Formats
79
Interrupts
80
Byte Clock Counter
81
Disk Transfer Logic
81
Sector Counter
81
Output to Disk Drive
82
Data Write Logic
82
Disk Drive Controls
83
Input from Disk Drive
83
Am-410 Board Set Operations and Timing
84
Data Transfer Operations
84
Data Transfer Timing
84
Disk Transfer Operations
85
Disk Read Clocks
86
BYTCLK-BYTENB Timing
86
Disk Write Timing
87
Sector Beginning Timing
88
DMA Transfer Timing
90
CPU Block Diagram
92
CPU Registers
92
CPU Pin Configuration
92
DMA Address Generator Connections
105
DMA Address Generator Block Diagram
106
Control Register Format Definition
107
CRC Checker Connections
113
CRC Equivalent Circuit for
114
CRC Check Word Generation
114
Dual D Flip-Flop Connections
115
J-K Flip-Flop Connections
115
Decoder Connections
116
Decoder/Demultiplexer Connections
117
Data Selector/Multiplexer Logic and Connections
118
Logic and Connections
120
Eight-Bit Shift Register Logic and Connections
127
Eight-Bit Parallel-In/Serial-Out Shift Register
128
Quad D Flip-Flops with Clear, Logic and Connections
130
Octal D-Type Flip-Flop with Clear, Logic and
132
Tri-State Hex Buffer Logic and Connections
133
Transparent Latch Logic and Connections
134
Tri-State D Flip-Flop Connections
135
Four-Bit Binary Counter Connections
136
Bus Comparator Connections
138
Tri-State Octal Buffer Logic and Connections
139
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