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USB 3.0 Protocol Layer
JMicron Technology Corporation
Outline
 Types of Packets
 Format of Packets
 Expected Responses to Packets
 The Four Transaction Types
 Conclusion
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Types of Packets
 Link Management Packets (LMP)
 Transaction Packet (TP)
 Data Packets (DP)
 Isochronous Timestamp Packets (ITP)
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Format of Packets
 8.3.1 Fields Common to all Headers
8.3.1.1 Reserved Values and Reserved Field Handling
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Format of Packets
 8.3.1.2 Type Field Description
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Format of Packets
 8.3.1.3 CRC-16
 8.3.1.4 Link Control World
CRC-5
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Format of Packets
 8.4 Link Management Packet (LMP)
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Format of Packets
 8.4 Link Management Packet (LMP)
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Format of Packets
 8.4 Link Management Packet (LMP)
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Format of Packets
 8.4 Link Management Packet (LMP)
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Format of Packets
 8.5 Transaction Packet (TP)
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Format of Packets
 8.5 Transaction Packet (TP)
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Format of Packets
 8.5 Transaction Packet (TP)
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Format of Packets
 8.6 Data Packet (DP)
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Format of Packets
 8.7 Isochronous Timestamp Packet
(ITP)
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Expected Responses to Packets
 Device Response to TP Requesting Data
 Host Response to Data Received from a
Device
 Device Response to Data Received from the
Host
 Device Response to a SETUP DP
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The Four Transaction Types
 Bulk
 Control
 Interrupt
 Isochronous
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Conclusion
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Serial Link The World