Altera 40-Gbps Ethernet MAC and PHY MegaCore Function Uživatelský manuál Strana 118

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The following 40-100GbE MAC and PHY IP core signals are not available in MAC-only IP core
variations:
Clock signals:
clk_ref (relevant only for IP core variations with the Sync–E support option turned off)
tx_clk_ref (relevant only for IP core variations with the Sync-E support option turned on)
rx_clk_ref (relevant only for IP core variations with the Sync-E support option turned on)
rx_recovered_clk (relevant only for IP core variations with the Sync-E support option turned on)
PCS and PMA reset signals:
pcs_tx_arst_ST
pcs_rx_arst_ST
pma_arst_ST
Ethernet link signals tx_serial and rx_serial
PHY output status signals tx_lanes_stable and lanes_deskewed. Note that input signals with these
names are available, and should be supplied by the user logic that implements the PHY layer.
Signals to connect to the external transceiver reconfiguration controller (relevant for Arria V GZ and
Stratix V devices only).
40GBASE-KR4 microprocessor interface and reconfiguration interface signals.
Table 3-21: 40-100GbE MAC IP Core Signals Not Visible in 40-100GbE MAC and PHY IP Core
Signal Name Direction Description
Transmit Side Signals
tx_mii_d[<w>*64-1:0]
Output
MAC to PHY connection
interface
tx_mii_c[<w>*8-1:0]
Output
tx_mii_valid
Output
tx_mii_ready
Input
tx_lanes_stable
Input
Receive Side Signals
rx_mii_d[<w>*64-1:0]
Input
PHY to MAC connection
interface
rx_mii_c[<w>*8-1:0]
Input
rx_mii_valid
Input
lanes_deskewed
Input Lane to lane deskew interface
Note: When simulating the full design the lanes_deskewed input comes from the output of the RX PCS,
indicating a fully locked status. To avoid confusion, when simulating the alt_e40_mac or
alt_e100_mac wrapper as the top level, drive the lanes_deskewed input and the tx_mii_ready
input to '1'.
UG-01088
2014.12.15
Signals of 40-100GbE MACOnly IP Core Variations
3-71
Functional Description
Altera Corporation
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