Peripheral-to-Processor LP Transmissions

Peripheral-to-processor transactions are of four basic types

• Tearing Effect (TE)：trigger message (BAh)
• Acknowledge：trigger message (84h)
• Acknowledge and Error Report：short packet (Data Type is 02h)
• Response to Read Request：short packet or long packet - Generic Read Response、DCS Read Response（1byte, 2byte, multi byte）

Feature

• BTA shall take place after every peripheral-to-processor transaction 
• Multi-Lane systems shall use Lane 0 for all peripheral-to-processor transmissions
• Reverse-direction signaling shall only use LP mode of transmission

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