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Alpha Micro Manuals
Computer Hardware
AM-410
Technical manual
Alpha Micro AM-410 Technical Manual
Disk drive controller circuit board set
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Paragraph Page
Figure Page
General Description
Introduction
Circuit Board Description
Application
AM-410 Simplified Block Diagram
Operating Data
Introduction
Capabilities and Specifications
Installation and Start-Up
Installation
Disk Drive Interface Cabling
System Start-Up
Interface Description
Bus Interface
Disk Drive Interface
User Options
Address Code
Interrupt Lines
Boot Option
Preparation
Programming
Introduction
Unique Software Considerations
PROGRAMMING (Continued)
Addressing
Initialization
Command Register
Status Register
Interrupt Mode
Handshake Sequence
AM-410 Status Words
DMA Buffer
Handshake Sequence
DMA Transfer Sequence
DMA Buffer Operation for Disk Write
DMA Buffer Operation for Disk Read
DMA Buffer Operation
Physical Address
Restore Command
Status Check
Functional Theory of Operation
Introduction
Circuit Board Operation
Addressing
Cpu Output
Command Data
Command Types
Output Data
CPU Input
Status Register
Status Word Formats
Input Data Register
Boot Load Procedure
Status Word Formats
Interrupts
Byte Clock Counter
Disk Transfer Logic
Sector Counter
Output to Disk Drive
Data Write Logic
Disk Drive Controls
Input from Disk Drive
Am-410 Board Set Operations and Timing
Data Transfer Operations
Data Transfer Timing
Disk Transfer Operations
Disk Read Clocks
BYTCLK-BYTENB Timing
Disk Write Timing
Sector Beginning Timing
DMA Transfer Timing
CPU Block Diagram
CPU Registers
CPU Pin Configuration
DMA Address Generator Connections
DMA Address Generator Block Diagram
Control Register Format Definition
CRC Checker Connections
CRC Equivalent Circuit for
CRC Check Word Generation
Dual D Flip-Flop Connections
J-K Flip-Flop Connections
Decoder Connections
Decoder/Demultiplexer Connections
Data Selector/Multiplexer Logic and Connections
Logic and Connections
Eight-Bit Shift Register Logic and Connections
Eight-Bit Parallel-In/Serial-Out Shift Register
Quad D Flip-Flops with Clear, Logic and Connections
Octal D-Type Flip-Flop with Clear, Logic and
Tri-State Hex Buffer Logic and Connections
Transparent Latch Logic and Connections
Tri-State D Flip-Flop Connections
Four-Bit Binary Counter Connections
Bus Comparator Connections
Tri-State Octal Buffer Logic and Connections
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~alpha
~~micro
TECHNICAL MANUAL
FOR
AM-410
DISK DRIVE CONTROLLER
CIRCUIT BOARD
-
S ET
DWM-0041 0-00
Revision ADO
December 1979
Table of
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