I2C Pass-Through 和I2C Pass-ＡＬＬ

ＴＩ　工程师

　　　你好，I2C Pass-Through 和I2C Pass-ＡＬＬ是什么意思，他俩是要同时设定吗？我看之前的贴子，ＴＩ的工程师是说他俩要同时设定。

Pass Through—This I2C control enables communication with all the remote devices, whose device ID and corresponding device Alias fields is defined into the local device (Ser or Des).

Pass Through All— This control enables all I2C transaction over the serial link that are not addressing the local device.

结合Snla222这篇应用手册，会更容易理解这两个概念。