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DMR11 Synchronous Controller User's Guide
Company:
Digital Equipment Corporation
Part:
EK-DMR11-UG-002
Date:
1980-12
Table of Contents
Chapter 1
Introduction
1.1
Scope
1.2
DMR11 General Description
1.3
DMR11 System Operation
1.3.1
Command Structure
1.3.2
Input Commands
1.3.3
Output Commands
1.3.4
DMR11 Operation Sequencing
1.3.5
Maintenance Mode Specification
1.4
General Specifications
1.4.1
Power Requirements
1.4.2
Environmental Requirements -- A11 DMR11s
1.5
EIA Standards Overview (RS-449 vs RS-232-C)
Chapter 2
Installation
2.1
Scope
2.2
Unpacking and Inspection
2.3
Installation Considerations
2.4
Preinstallation Considerations
2.4.1
System and Device Placement
2.4.1.1
System Placement
2.4.1.2
Device Placement
2.4.2
System Requirements
2.5
Microprocessor Installation
2.5.1
Backplane Considerations
2.5.2
M8207-RA Considerations
2.5.3
M8207-RA Insertion
2.6
Line Unit Installation
2.6.1
M8203 Considerations
2.6.2
M8203 Insertion
2.7
DMR11 System Testing
2.7.1
Functional Diagnostic Testing
2.7.2
DECX11 System Exerciser
2.7.3
Final Cable Connections
2.7.4
DMR11 Link Testing
2.8
DMR11-XX Installation Check-Off List
Chapter 3
Programming
3.1
Introduction
3.2
Command Structure
3.2.1
Control and Status Registers
3.2.2
Initialization
3.2.3
Input Commands Overview
3.2.3.1
Input Command Handshaking
3.2.3.2
Modem Status Read
3.2.4
Output Commands Overview
3.2.4.1
Output Command Handshaking
3.3
Input Commands
3.3.1
Base In
3.3.2
Control In
3.3.3
Receive Buffer Address/Character Count In (RBA/CCI)
3.3.4
Transmit Buffer Address/Character Count In (TBA/CCI)
3.3.5
Halt Request Command
3.4
Output Commands
3.4.1
Receive Buffer Address/Character Count Out (RBA/CCO)
3.4.2
Transmit Buffer Address/Character Count Out (TBA/CCO)
3.4.3
Control Out
3.5
Programming Techniques
3.5.1
Input Command Sequence
3.5.2
Base In Command with Resume Feature
3.5.3
Distinguishing DMR11 from DMC11
3.5.4
DDCMP Maintenance Mode Operation
3.5.4.1
Data Transfer
3.5.4.2
Unattended System Control
3.6
Base Table Counters
3.7
Modem Control
3.7.1
Modem Control Implemented in M8203
3.7.1.1
Modem Ready Lockout of RTS
3.7.1.2
Half-Duplex Mode
3.7.2
Modem Control Implemented in DMR11 Microprogram
3.7.2.1
Auto-Answer
3.7.2.2
Data Set Ready Glitch
3.7.2.3
RTS-CTS Delay
3.7.2.4
Loss of Carrier Detect
3.7.2.5
Receiver Inactive Check
3.7.2.6
Modem Status Read During Input Command
3.7.2.7
Data Terminal Ready Control
3.8
DMR11 Data Link Functions
Appendix A
Floating Device Addresses and Vectors
A.1
Floating Device Addresses
A.2
Floating Vector Addresses
A.3
Examples of Device and Vector Address Assignment
Appendix B
DDCMP In a Nutshell
B.1
DDCMP
B.1.1
Controlling Data Transfers
B.1.2
Error Checking and Recovery
B.1.3
Character Coding
B.1.4
Data Transparency
B.1.5
Data Channel Utilization
B.2
Protocol Description
B.3
Message Format
Appendix C
Diagnostic Supervisor Summary
C.1
Introduction
C.2
Versions of the Diagnostic Supervisor
C.3
Loading and Running a Supervisor Diagnostic
C.3.1
Five Steps to Run a Supervisor Diagnostic
C.4
Supervisor Commands
C.4.1
Command Switches
C.4.2
Control/Escape Characters Supported
C.5
What is the Setup Utility?
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