MIPI CSI-2 Rx Subsystem needs TCLK-POST to be a minimum of 18 rxbyteclkhs. MIPI D-PHY v2.0 recommends the minimum value of TCLK-POST as 60ns +52UI. The system designer should consider the maximum of these two TCLK-POST values for the MIPI source.
For example,
1.
For a line-rate of 896 Mbps, rxbyteclkhs is 1.116ns. The required TCLK-POST is
18*1.116 = 20.089ns
2. Example s for specific line-rates are as follows:
|
Linerate |
EQ1: TCLK-POST minimum per D-PHY 2.0 specification (60ns +52UI) |
EQ2:Required TCLK-POST minimum by MIPI CSI-2 Rx Subsystem |
Final TCLK-POST MAX(EQ1, EQ2) |
|---|---|---|---|
|
896 |
118ns |
160ns |
160ns |
|
1440 |
96ns |
100ns |
100ns |
|
2000 |
86ns |
72ns |
86ns |
TCLK-POST is the setting in the Transmitter (D-PHY or CSI-2) which the system designer has to set based on the receiver requirements.