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Norsk Data Manuals
I/O Systems
NORD-100
Manual
Norsk Data NORD-100 Manual
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Contents
Table of Contents
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Table of Contents
Table of Contents
Introduction
Definition of Terms
Nord-1Oo Architecture
General
Usage
General
Programming of I/Odevice Controllers
(Interfaces) - the Input/Output Instructions
Iox/Ioxt
Introduction to IOX/IOXT
Format and Functions of the IOX and IOXT Instructions
Definition of IOX/IOXT Transfer Direction
Calculation of the IOX/IOXT Device Register Address
The Device Register Address Range
Device Selection - the Hardware Device Number
Device Register Selection on an L/O Interface
Format of the Control and Status Registers for Norsk Data
General
Format and Functions of the Status Register
Format and Function of the Control Register
Programming of a PIO Interface
General
Programmed Input from a FIG Interface
Programmed Output to a PIO Interface
Programming of DMA Controllers
DMA Controller Operation
The I/O System and the Interrupt System
General
Sintran |II
Identification of an Interrupting I/O Device Controller
General
The Ident Code
The Ident Instruction
The Ident Search Mechanism
Input/Output Interrupt Programming
Initialization of the Interrupt System
Handling of I/O Interface Interrupts
The Nord-Ioo Bus
General
Appendix:
Modules
The Nord-100 Bus - Bus Requestors
A Nord-100 Bus Cycle - General Description
Functions of the Bus Control Logic (Bcu)
Allocation of the nor D-100 Bus
The Allocation Requests
||.4.1.1.2 DMA Allocation Request
Memory Refresh Allocation Request
The Bus Control Unit (BCU) Allocation Priority Rules
Cycles
Switches on the CPU Module
ALD - Automatic Load Descriptor
Console: Speed Setting for Console Terminal
Switches on Floppy and 4 Terminals Module
Floppy Disk System
Terminal Group
3 Initial Baud Ra te for Terminals
Switches on the 10MB Disk Module
Switch Setting on the Pertec Magnetic Tape Module
Switch Setting on NORD-100 Bus Adapter
Connection
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NORD-100
Input/Output System
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