Need clarification on document UM10204 (I2C-bus specification and user manual)

[gerrikoio]

I'm seeking some clarification on section 3.1.17 Device ID.

In this section is lists 7 steps to access the Device ID.

In step 2 it notes "The master sends the Reserved Device ID I2C-bus address followed by the R/W bit set to ‘0’ (write): ‘1111 1000’."

As there is nothing else in the document that explains what the "Reserved Device ID" is, I just wanted to check that I literally have to enter "1111 1000" and it is not "1111 1XXX" table 3 in section 3.1.12 Reserved addresses, where it indicates that XXX can be any value. So a little confused.

I look forward to getting clarification.

Thanks

[Alice_Yang · Accepted solution]

Hello Colin Gerrish,

1) explains what the "Reserved Device ID" is.

-> Please have a look at the part of "3.1.17 Device ID"

2) where it indicates that XXX can be any value.

-> It seems X can don't care:

Have a great day,
TIC

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------