AM335x PR1 signal names

Patrick Ruf

Hello,

I'm a bit confused about the signal names used in the AM335x datasheet (SPRS717D) for the PRU.

Most of the PRU-ICCS MII signals are in the form "pr1_miix_...." like "pr1_mii0_txen". Only the receive and transmit clock signal are not (e.g. pr1_mii_mt0_clk). Is this done on purpose or is it a typing error?

Thanks.

Best regards,
Patrick

over 12 years ago

0 Biser Gatchev-XID over 12 years ago

TI__Guru**** 393215 points

Hi Patrick,

The clocks also have the 0 resp. 1 index. I don't see any problem here.

0 Patrick Ruf over 12 years ago in reply to Biser Gatchev-XID

Genius 4965 points

Hi Biser,

Your right, it's the position of the index.

pr1_mii0_txen
pr1_mii_mt0_clk

Why not pr1_mii0_mt_clk?

For me it either looks like a typing error or the clock signals are not directly related to pr1_mii0 or p1_mii1 (?)

I ask this question so we can make the schematic consistent to signal names used by TI in the datasheets and manuals. Which makes it easier for someone to read.

0 Biser Gatchev-XID over 12 years ago in reply to Patrick Ruf

TI__Guru**** 393215 points

These signals are named this way throughout the documentation, and also on all reference designs. And they are related to the pr1_mii0/p1_mii1. Check Tables 2-34 and 2-35 in the AM335X datasheet.

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AM335x PR1 signal names