Altera UG-01080 Betriebsanweisung Seite 345

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Seitenansicht 344
Chapter 14: Arria V GZ Transceiver Native PHY IP Core 14–37
10G PCS Interface
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
Table 14–34 describes the signals available for the 10G PCS datapath. When you
enable both the 10G and Standard datapaths, both sets of signals are included in the
top-level HDL file for the Native PHY.
1 In Table 14–34, the column labeled “Synchronous to tx_10_coreclkin/rx_10g_coreclkin”
refers to cases where the phase compensation FIFO is not in register mode.
,
Table 14–34. 10G PCS Interface Ports (Part 1 of 8)
Name Dir
Synchronous to
tx_10g_coreclkin/
rx_10g_coreclkin
Description
Clocks
tx_10g_coreclkin[<n>-1:0]
Input
TX parallel clock input that drive the write side of the TX
FIFO as shown in The 10G PCS datapath figure.
rx_10g_coreclkin[<n>-1:0]
Input
RX parallel clock input that drives the read side of the
RX FIFO as shown in The 10G PCS datapath figure.
tx_10g_clkout[<n>-1:0]
Output
TX parallel clock output for the TX PCS as shown in The
10G PCS datapath figure.
rx_10g_clkout[<n>-1:0]
Output
RX parallel clock output which is recovered from the RX
data stream as shown in The 10G PCS datapath figure.
rx_10g_clk33out[<n>-1:0]
Output
A divide by 33 clock output. You typically need this
option when the fabric to PCS interface width is 66 bits.
TX FIFO
tx_10g_control[9<n>-1:0]
Input Yes
TX control signals for the Interlaken, 10GBASE-R, and
Basic protocols. Synchronous to tx_10g_coreclk_in.
The following signals are defined:
Interlaken mode:
[8]: Active-high synchronous error insertion control
bit
[7:3]: Not Used
[2]: Inversion signal, must always be set to 1'b0.
[1]: Sync Header, 1 indicates a control word
[0]: Sync Header, 1 indicates a data word
10G BaseR mode:
[8]: Active-high synchronous error insertion control
signal
[7]: MII control signal for
tx_data[63:56]
[6]: MII control signal for
tx_data[55:48]
[5]: MII control signal for
tx_data[47:40]
[4]: MII control signal for
tx_data[39:32]
[3]: MII control signal for
tx_data[31:24]
[2]: MII control signal for
tx_data[23:16]
[1]: MII control signal for
tx_data[15:8]
[0]: MII control signal for
tx_data[7:0]
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