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Altera_Forum
Honored Contributor
Honored ContributorWhich pins for ethernet transmitter in Cyclone IV GX?
Hello everyone,
I have an ethernet design which I got from internet with the outputs Ethernet_TDp, Ethernet_TDm. I thought the compatible pins for the outputs would be C1 and C2, but their I/O Standard is 1.4-V PCML which is not supported by default I/O Standard. Can anyone tell me how to resolve this isue?5 Replies
Altera_Forum--- Quote Start --- I find file "shematic in install folder" it show detail shematic. I remember having. good luck --- Quote End --- I searched every where, but I could not find it. Can you tell me the specific path? :D- Altera_Forum
I find file "shematic in install folder" it show detail shematic. I remember having. good luck
- Altera_Forum
I read the manual at altera.com/literature/manual/rm_civgx_trans_starter_board.pdf, the I/O Standard for ethernet is 2.5-V CMOS (page 5), and the I/O Standard for pin C1, C2 is 1.4-V PCML (page 21). I don't know to set them up. :confused:
- Altera_Forum
There is 1.5V for the voltage level of the data going down the ethernet cable?
- Altera_Forum
As far as I know, if you are using the dedicated tranisceiver pins, the transmitter I/O standard is 1.5V PCML while the receiver supports multiple I/O standards including 1.4V PCML.
You can check out the I/O standards in the data sheet or the handbook (i forgot which one had it).
