Jetson Orin AGX - Connecting 2 x M.2 key M

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
1

Hi,
I designing a mothere board for the AGX Orin.
I would like to connect 2 M.2 key M to to the AGX orin.
When using the config #1 and the connection is-
M.2 key M #1 to UPHY22-23 and UPHY10-11.
M.2 key M #2 to UPHY12-15.
Can I do this?
BR
Shmuel

3

Yes, just need to follow the config #1.

4

I want to verify that my connection is good.
The first M.2 Key M I connect-
PEX_CLK5 to the REFCLK
UPHY12-15 to PE0-3 respectively (12 to 0, 13 to 1, 14 to 2, 15 to 3)
PEX_L5_CLKREQ_N to CLKREQ
PEX_L5_RST_N to PERST

The second M.2 Key M I connect-
PEX_CLK4 to the REFCLK
UPHY11-10 and UPHY23-22 to PE0-3 respectively (11 to 0, 10 to 1, 23 to 2, 22 to 3)
PEX_L4_CLKREQ_N to CLKREQ
PEX_L4_RST_N to PERST

Is my connection are good?

BR
Shmuel

6

I followed config#1 but in the conig#1 it doesn’t say how to connect it to the data of the key M.
I just want to be sure that I didn’t cross between PEo-3.
So I’ll ask again-
UPHY12-15 to PE0-3 respectively (12 to 0, 13 to 1, 14 to 2, 15 to 3)
UPHY11-10 and UPHY23-22 to PE0-3 respectively (11 to 0, 10 to 1, 23 to 2, 22 to 3)
Thanks

7

Another thing-
In the Xavier AGX schematic, the key M is connected to UPHY2-5.
Can I rely on this connection and connect it to UPHY14-17?

8

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