mipi DPHY时序讲解

本期主题:
MIPI DPHY几个关键时序讲解


往期链接:

  • ISP系统综述

MIPI DPHY时序讲解

  • 1.MIPI高速传输时序概览
    • 1.HS_PREPARE
    • 2.HS_ZERO
    • 3.HS_TRAIL
    • 4.EOT
    • 5.HS_EXIT


1.MIPI高速传输时序概览

参考自 mipi_D_PHY_specification_v1_2.pdf
链接:http://caxapa.ru/thumbs/799244/mipi_D_PHY_specification_v1_2.pdf
mipi DPHY时序讲解_第1张图片

Figure 14 shows the sequence of events during the transmission of a Data Burst.
上图展示了在一次传输过程中时序

1.HS_PREPARE

Time that the transmitter drives the Data Lane LP-00 Line state immediately before the HS-0 Line state starting the HS transmission
在开始传输之前,Data Lane的状态从LP-00到HS状态,需要准备的时间

mipi DPHY时序讲解_第2张图片

2.HS_ZERO

the transmitter drives the HS-0 state prior to transmitting the Sync sequence
在HS-PREPARE之后,在HS-SYNC之前(3个bit)的时间

mipi DPHY时序讲解_第3张图片
mipi DPHY时序讲解_第4张图片

3.HS_TRAIL

Time that the transmitter drives the flipped differential state after last payload data bit of a HS transmission burst
在HS传输模式下,最后一个有效payload的bit位之后的等待时间

mipi DPHY时序讲解_第5张图片

4.EOT

Transmitted time interval from the start of THS-TRAIL or TCLK-TRAIL, to the start of the LP-11 state following a HS burst.
从HS-TRAIL开始到进入LP-11的时间

mipi DPHY时序讲解_第6张图片

5.HS_EXIT

Time that the transmitter drives LP-11 following a HS burst.
在HS传输之后,持续LP-11的时间

mipi DPHY时序讲解_第7张图片

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