MIPI DSI 笔记

专业术语：

MIPI - Mobile Industry Processor Interface.

DCS - Display Command Set.

DBI/DPI - Display Bus Interface / Display Pixel Interface.

    DBI : Parallel interface to display modules having display controllers and frame buffers.

    DPI : Parallel interface to display modules without on-pannel display controllers or frame buffers.

DSI - Display Serial Interface.

CSI - Camera Serial Interface.

DDR clock - Double Data Rate. Half rate clock used for dual-edged data transimission.

Escape Mode - 在此模式下，Data Lane允许在低功耗下低速传输命令或数据。

EoT - End of Transimission.

SoT - Start of Transimission.

HS - High Speed.

LP - Low Power.

ULPS - Ultra Low Power State 超省电状态。

DSI笔记：

1. one clock Lane + One to Four Data Lanes

2. Operation Mode:

    (1) Command Mode (Similar to MPU IF)

            Data Lane 0: Bi-directional. For returning data, ACK or error report to host

            Additional Data Lanes: Unidirectional.

    (2) Video Mode (Similar to RGB IF)

            Three format video data (Using HS mode):

                       a. Non-Burst Mode with sync pluse.

                       b. Non-Burst Mode with sync Events.

                       c. Burst Mode.

3. Transimission mode:

    (1) High Speed signaling mode, 差分信号 100~300mV

    (2) Low Power signaling mode, single-end signal 0~1.2V

              Forward/Reverse direction LP transimission shall use Data Lane 0 only.

              For return data, DSI-compliant system shall only use Data Lane 0 in LP mode.

4. Packet Types

    (1) Short Packet: 4 bytes (fixed length)

          Data ID (1 byte) + Data 0 (1 byte) + Data 1 (1 byte) + ECC (1 byte)

    (2) Long Packet: 6 ~ 65541 bytes (variable Length)

          Packet Header (4 bytes) + Data Payload (0 ~ 65535 bytes) + Packet Footer (2 bytes)