1.0 INTRODUCTION
1.1 Purpose of This Document
1.2 Relationship to ARINC Specifications 419 and 429
1.3 ARINC Specification 629 Basic Philosophy
1.3.1 Basic Protocol - Protocol BP
1.3.2 Combined Mode Protocol - Protocol CP
1.3.3 Compatibility/Interchangeability
1.3.4 Data Rate
1.4 Organization of This Specification
1.5 Guidance for Using This Specification
1.6 Effects on LRU Interchangeability
1.7 Environmental Factors
1.8 Related Documents
2.0 BUS DESIGN OVERVIEW
2.1 Classes of Service
2.1.1 Basic Protocol Operation - Protocol BP
2.1.2 Combined Mode Protocol Operation - Protocol CP
2.1.3 File Transfer Data
2.2 Message Transfer Modes
2.2.1 Broadcast Data
2.2.2 Directed Data
2.3 Classes of Data Transfer
2.4 Data Types
2.4.1 Binary Data
2.4.2 Alphanumeric Data
2.4.3 Discrete Data
2.4.4 Extended Binary
2.4.5 Real Numbers
2.4.6 Byte Data
2.4.7 Graphic Data
2.5 Message Timing
2.5.1 Bit Rate
2.6 Error Management
2.6.1 Terminal-to-Terminal Errors
2.6.2 System-to-System Errors
2.7 Bus Integrity
3.0 PHYSICAL LAYER
3.1 Introduction
3.1.1 Section Overview
3.1.2 Scope of the Physical Layer Specification
3.2 System Level Requirements
3.2.1 Special Considerations
3.3 Physical Layer Signalling Specification (Terminal
        Controller to SIM Interface)
3.3.1 Terminal Controller Signalling
3.3.2 Terminal Controller-SIM Interface Signals
3.4 Physical Layer Entities
3.4.1 Entity Overview
3.4.2 Current Mode Bus
3.4.3 Fiber Optic Mode Bus
3.4.4 Voltage Mode Bus
4.0 MEDIA ACCESS CONTROL SUBLAYER
4.1 Introduction
4.2 Basic Protocol - Protocol BP
4.2.1 Logic Definition - Protocol BP
4.2.2 Timing Considerations - Protocol BP
4.2.3 Transmit Operation - Protocol BP
4.3 Combined Mode Protocol - Protocol CP
4.3.1 Logic Definition - Protocol CP
4.3.2 Timing Considerations - Protocol CP
4.3.3 Transmit Operation - Protocol CP
4.4 Common Elements
4.4.1 Data Synchronization
4.4.2 Error Detection (Parity)
4.4.3 Terminal Monitoring
4.4.4 Collision Recovery
4.4.5 Receive Operation
4.4.6 Physical - Terminal Reconfiguration
4.5 Additional MAC Requirements for OSI Communications
4.5.1 MAC Frame Format
4.5.2 Minimum Services Available at MAC Sublayer Upper
        Layer Interface
5.0 NON-OSI DATA TRANSFER
5.1 Introduction
5.2 Frame Definition
5.3 Non-OSI Broadcast Message Structure
5.3.1 Label
5.3.2 Channel Identification
5.3.3 Data Status
5.3.4 Word Count
5.3.5 Protocol Indication
5.3.6 Information
5.3.7 Frame Check Sequence
5.4 Non-OSI Unacknowledged Directed Transfer Message
        Structure
5.4.1 Source Address
5.4.2 Channel Identification
5.4.3 Destination Address
5.4.4 Data Status
5.4.5 Protocol Indication
5.4.6 Word Count
5.4.7 Information Identifier
5.4.8 Information
5.4.9 Frame Check Sequence
5.4.10 Frame Check Sequence Validation
6.0 LOGICAL LINK CONTROL (LLC) SUBLAYER
6.1 Introduction
6.2 LLC Types and Classes of Procedure
6.2.1 Types of LLC Operation
6.2.2 LLC Classes
6.3 Frame Structure
6.3.1 Bit Order
6.3.2 Data Unit
6.4 System Parameters
6.5 Application of System Parameters
ATTACHMENTS
1A Coupler Grounding and Shielding System
1B-1 Terminal Controller (TC) Serial Interface Module
        (SIM) Interface
1B-2 Specifications of TXO/TXN and RXI/RXN Timing
1C Subsystem (LRU/LRM) - Serial Interface Module
        (SIM) Interface
1D Serial Interface Between Current Mode Coupler
        and Stub Cable
1E Signal Parameters
1E-1 ARINC 629 Waveform Templates for SIM-Coupler
        Interface
1E-2 Waveform Template: SIM Output to Transmit Stub
1E-3 Waveform Template: SIM Input from Receive Stub
1E-4 Waveform Template: Coupler Input from Transmit Stub
1E-5 Waveform Template: Coupler Output to Receive Stub
1E-6 Waveform Template: Coupler Output to Bus Cable
1E-7 Waveform Template: Coupler Input from Bus Cable
1E-8 Coupler Power Supply Voltage Normal Mode
1E-9 Coupler Power Supply Voltage Received Only Mode
1E-10 Transmit Signal Amplitude Measurement
1E-11 Passive Coupler Test Circuit
1E-12 Passive Coupler Test Waveforms
1E-13 Coupler Reflected Impedance
1F Current Mode Coupler and Bus Medium - Waveshapes
        and Timing
1G Example Current Mode Coupler Packaging
1H Current Mode Coupler Package Outline
1I Current Mode Coupler Mounting Footprint
2 General Word Formats and Encoding Examples
3A Periodic Mode Timing Diagram - Protocol BP
3B Aperiodic Mode Timing Diagram - Protocol BP
4 Example of a Message
4A Message Example
4B Word Formats
4C Modulation Formats
5A Receive Personality PROM (RPP) Cell Structure
5B Transmit Monitor
5C Error Flags
5D Protocol Monitoring
6 System Identification/Channel Identification (CID)
        Bit Definition
7A Protocol CP - Access Protocol Summary
7B Protocol CP - Overall Terminal Access State Diagram
7C Protocol CP - Level 1 (Periodic) Access State
        Diagram
7D Protocol CP - Level 2 (Aperiodic) Access State
        Diagram
7E Protocol CP - Level 3 (Aperiodic) Access State
        Diagram
8A Protocol CP Timing - Overall
8B Protocol CP Timing - Level 1
8C Protocol CP Timing - Level 2
8D Protocol CP Timing - Level 3
9A Example of System Status Word Transmissions
9B Example of Parameter Validity Word Transmission
10 Non-OSI Unacknowledged Directed Message Format
11 OSI Message Format
12 Non-OSI Broadcast Message Format
13 Syntax of Messages on Bus for a Single Terminal
14 Glossary
15 Timer Operation
16A Terminal Controller Errors
16B SIM/Coupler Errors
APPENDICES
1 References Documents
2 International Standards Organization Code No. 5
3 Example of Data Transfer
4A Example of Transmit Personality PROM (XPP) Format
        Independent Mode Schedule
4B Example of Transmit Personality PROM (XPP) Format
        Block Mode Schedule
4C Transmit Personality PROM (XPP) Cell Structures
4D XPP Label Structure
4E XPP Address Structure
4F XPP Transmit Word Mode and Transmit Word Count
        Control
4G XPP Transmit Interrupt Structure
4H XPP Variable Wordstring Structure
4I XPP Transmit Personality Prom (XPP) Synchronization
5A Receive Personality PROM (RPP) Cell Structures
5B RPP Address Structure
5C Address Generation With No Offset
5D Address Generation Without MPP
5E Address Generation Using MPP
5F RPP Offset Table Diagram
5G RPP Receive Mode, Message String Count and Receive
        Word Count - Internal Control
5H RPP - SG, TI, and TG Locations
5I Receive Interrupt
5J Use of RIV for Local Address Decoding
6 Protocol CP - Example Subsystem - Transmitter
        Dedicated Hardware for Levels 2 and 3