Specification for D-PHY Version 1.2
01-Aug-2014
6.5 Bi-directional Data Lane Turnaround ............................................................................ 24
6.6 Escape Mode .................................................................................................................. 27
6.6.1 Remote Triggers ......................................................................................................... 28
6.6.2 Low-Power Data Transmission .................................................................................. 28
6.6.3 Ultra-Low Power State ............................................................................................... 29
6.6.4 Escape Mode State Machine ...................................................................................... 29
6.7 High-Speed Clock Transmission ................................................................................... 31
6.8 Clock Lane Ultra-Low Power State ............................................................................... 36
6.9 Global Operation Timing Parameters ............................................................................ 38
6.10 System Power States ...................................................................................................... 42
6.11 Initialization ................................................................................................................... 42
6.12 Calibration ..................................................................................................................... 42
6.13 Global Operation Flow Diagram ................................................................................... 46
6.14 Data Rate Dependent Parameters (informative) ............................................................ 47
6.14.1 Parameters Containing Only UI Values .................................................................. 48
6.14.2 Parameters Containing Time and UI values ........................................................... 48
6.14.3 Parameters Containing Only Time Values .............................................................. 48
6.14.4 Parameters Containing Only Time Values That Are Not Data Rate Dependent ..... 49
7
Fault Detection ..........................................................................................................50
7.1 Contention Detection ..................................................................................................... 50
7.2 Sequence Error Detection .............................................................................................. 50
7.2.1 SoT Error .................................................................................................................... 51
7.2.2 SoT Sync Error ........................................................................................................... 51
7.2.3 EoT Sync Error ........................................................................................................... 51
7.2.4 Escape Mode Entry Command Error .......................................................................... 51
7.2.5 LP Transmission Sync Error ....................................................................................... 51
7.2.6 False Control Error ..................................................................................................... 51
7.3 Protocol Watchdog Timers (informative) ...................................................................... 51
7.3.1 HS RX Timeout .......................................................................................................... 51
7.3.2 HS TX Timeout .......................................................................................................... 51
7.3.3 Escape Mode Timeout ................................................................................................ 51
7.3.4 Escape Mode Silence Timeout ................................................................................... 51
7.3.5 Turnaround Errors ...................................................................................................... 52
8
Interconnect and Lane Configuration .....................................................................53
8.1 Lane Configuration ........................................................................................................ 53
8.2 Boundary Conditions ..................................................................................................... 53
8.3 Definitions ..................................................................................................................... 53
8.4 S-parameter Specifications ............................................................................................ 54
8.5 Characterization Conditions .......................................................................................... 54
8.6 Interconnect Specifications ............................................................................................ 54
8.6.1 Differential Characteristics ......................................................................................... 55
8.6.2 Common-mode Characteristics .................................................................................. 56
8.6.3 Intra-Lane Cross-Coupling ......................................................................................... 56
8.6.4 Mode-Conversion Limits ............................................................................................ 56
8.6.5 Inter-Lane Cross-Coupling ......................................................................................... 56
8.6.6 Inter-Lane Static Skew ............................................................................................... 57
8.7 Driver and Receiver Characteristics .............................................................................. 57
8.7.1 Differential Characteristics ......................................................................................... 57
8.7.2 Common-Mode Characteristics .................................................................................. 58
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