
13–16 Chapter 13: Arria V Transceiver Native PHY IP Core
Common Interface Ports
Altera Transceiver PHY IP Core November 2012 Altera Corporation
User Guide
Table 13–18. Native PHY Common Interfaces (Part 1 of 2)
Name Direction Description
Clock Inputs and Output Signals
tx_pll_refclk[<r>-1:0]
Input The reference clock input to the TX PLL.
tx_pma_clkout[<n>-1:0]
Output
TX parallel clock output from PMA. This clock is only available in
PMA direct mode.
rx_pma_clkout[<n>-1:0]
Output RX parallel clock (recovered clock) output from PMA
rx_clklow[<n>-1:0]
Output
The RX parallel recovered clock input to the phase frequency
detector (PFD). When operating CDR in manual lock mode, you
can use this clock as an input with
rx_fref
to an external PPM
detector.
rx_fref[<n>-1:0]
Output
The RX local reference lock input to the PFD. When operating
CDR in manual lock mode, you can use this clock with
rx_clklow
as an input to an external PPM detector.
rx_cdr_refclk[<n>-1:0]
Input Input reference clock for the RX PFD circuit.
Resets
pll_powerdown[<p>-1:0]
Input
When asserted, resets the TX PLL. Active high, edge sensitive
reset signal.
tx_analogreset[<n>-1:0]
Input
When asserted, resets for TX PMA, TX clock generation block,
and serializer. Active high, edge sensitive reset signal.
tx_digitalreset[<n>-1:0]
Input
When asserted, resets the digital components of the TX datapath.
Active high, edge sensitive, asynchronous reset signal. If your
design includes bonded TX PCS channels, refer to Timing
Constraints for Reset Signals when Using Bonded PCS Channels
for a SDC constraint you must include in your design.
rx_analogreset[<n>-1:0]
Input
When asserted, resets the RX CDR, deserializer. Active high, edge
sensitive, asynchronous reset signal.
rx_digitalreset[<n>-1:0]
Input
When asserted, resets the digital components of the RX datapath.
Active high, edge sensitive, asynchronous reset signal.
Parallel data ports
tx_pma_parallel_data[79:0]
Input
TX parallel data for the PMA Direct datapath. Driven directly from
the FPGA fabric to the PMA. Not used when you enable the
Standard PCS datapath.
rx_pma_parallel_data[79:0]
Output
RX PMA parallel data driven from the PMA to the FPGA fabric.
Not used when you enable the Standard PCS datapath.
tx_parallel_data[43:0]
Input
PCS TX parallel data. Used when you enable the Standard
datapath.
rx_parallel_data[63:0]
Output
PCS RX parallel data. Used when you enable the Standard
datapath.
TX and RX serial ports
tx_serial_data[<n>-1:0]
Output TX differential serial output data.
rx_serial_data[<n>-1:0]
Input RX differential serial output data.
Control and Status ports
rx_seriallpbken[<n>-1:0]
Input
When asserted, the transceiver enters serial loopback mode.
Loopback drives serial TX data to the RX interface.
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