Infrared Data Association
Serial Infrared Link Access Protocol (IrLAP)
Version 1.1
June 16, 1996
IBM Corporation
Hewlett-Packard Company
Apple Computer, Inc.
Counterpoint Systems Foundry, Inc.
IrLAP Version 1.1
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Authors:
Timothy Williams, Peter Hortensius, Frank Novak (IBM Corporation)
Kevin Smith (Hewlett-Packard Company)
David Suvak (Hewlett-Packard Company, Counterpoint Systems Foundry, Inc.)
Mike Cremer (Apple Computer, Inc.)
Significant Contributors:
Darrell Sell (Connexus)
Document Status
Version 1.0: This document has been submitted to the IrDA committee for a vote of approval. It was unanimously
approved. The authors reserve the right to make small editing changes and to complete section 0 8.
Appendix B (Point-To-Multipoint).
Version 1.1: This version has been approved by the IrDA. It incorporates all errata submitted for version 1.0
including the changes necessary for adding the higher speeds 576kbps, 1.152Mbps and 4.0Mbps.
IrLAP Version 1.1
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IrLAP Version 1.1
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TABLE OF CONTENTS
1. INTRODUCTION.......................................................................................................11
1.1 Scope and Purpose .......................................................................................................................................... 11
1.2 References........................................................................................................................................................ 12
1.3 Acronyms and Definitions .............................................................................................................................. 12
1.4 Bit and Byte Ordering .................................................................................................................................... 13
2. DATA LINK LAYER SERVICE SPECIFICATIONS...................................................14
2.1 IrLAP Service Definitions .............................................................................................................................. 14
2.2 Connectionless Services.................................................................................................................................. 15
2.2.1 Discovery Services..................................................................................................................................... 15
2.2.2 Address Conflict Services.......................................................................................................................... 15
2.2.3 Unit Data Services...................................................................................................................................... 16
2.3 Connection Oriented Services........................................................................................................................ 16
2.3.1 Connect Services........................................................................................................................................ 16
2.3.2 Sniffing Services ........................................................................................................................................ 17
2.3.3 Data Services.............................................................................................................................................. 17
2.3.4 Status Services ........................................................................................................................................... 17
2.3.5 Reset Services............................................................................................................................................ 18
2.3.6 Disconnection Services.............................................................................................................................. 18
3. ENVIRONMENTAL AND OPERATIONAL CHARACTERISTICS.............................19
3.1 Configurations and Operating Characteristics ............................................................................................ 19
3.2 Data Link States.............................................................................................................................................. 19
3.3 Unbalanced Data Link.................................................................................................................................... 19
3.4 Modes............................................................................................................................................................... 20
4. IRLAP FRAME STRUCTURE ...................................................................................21
4.1 General............................................................................................................................................................. 21
4.2 IrLAP Frame................................................................................................................................................... 21
4.2.1 Frame Format............................................................................................................................................. 21
4.2.2 Wrapping Layer ......................................................................................................................................... 21
4.3 Elements of the IrLAP Frame........................................................................................................................ 22
4.3.1 Address ...................................................................................................................................................... 22
4.3.1.1 Address Field Representation.............................................................................................................. 22