
Chapter 4: Backplane Ethernet 10GBASE-KR PHY IP Core 4–15
Control and Status Interfaces
November 2012 Altera CorporationAltera Transceiver PHY IP Core
User Guide
Control and Status Interfaces
Table 4–13 describes the control and status interface signals.
Table 4–14. Control and Status Signals (Part 1 of 2)
Signal Name Direction Description
rx_block_lock
Output
Asserted to indicate that the block synchronizer has
established synchronization.
rx_hi_ber
Output
Asserted by the BER monitor block to indicate a Sync Header
high bit error rate greater than 10
-4
.
pll_locked
Output When asserted, indicates the TX PLL is locked.
rx_is_lockedtodata
Output
When asserted, indicates the RX channel is locked to input
data.
pll_locked
Output When asserted, indicates that the PLL is locked.
rx_is_lockedtodata
Output
When asserted, indicates the RX channel is locked to input
data
tx_cal_busy
Output
When asserted, indicates that the TX channel is being
calibrated.
rx_cal_busy
Output
When asserted, indicates that the RX channel is being
calibrated.
calc_clk_1g
Input
This clock is used for calculating the latency of the soft 1G
PCS block. This clock is only required for when you enable
1588 in 1G mode.
rx_sync_status
Output
When asserted, indicates the word aligner has aligned to in
incoming word alignment pattern.
tx_pcfifo_error_1g
Output
When asserted, indicates that the Standard PCS TX phase
compensation FIFO is full.
rx_pcfifo_error_1g
Output
When asserted, indicates that the Standard PCS RX phase
compensation FIFO is full.
lcl_rf
Input
When asserted, indicates a Remote Fault (RF).The MAC to
sends this fault signal to its link partner. Bit D13 of the
Auto
Negotiation
Advanced Remote Fault
register (0xC2) records this error.
trn_in_trigger[3:0]
Input This signal is not functional in 1G/10Gbe mode. Tie to 1’b0.
trn_out_trigger[3:0]
Output This signal is not functional in 1G/10Gbe mode. Tie to 1’b0.
rx_rlv
Output When asserted, indicates a run length violation.
rx_clkslip
Input
When asserted, indicates that the deserializer has either
skipped one serial bit or paused the serial clock for one cycle
to achieve word alignment. As a result, the period of the
parallel clock could be extended by 1 unit interval (UI) during
the clock slip operation. This signal is available if you select
the optional
rx_latency_adj_1g[11:0]
Output
When you enable 1588, this signal outputs the real time
latency in GMII clock cycles (125 MHz) for the RX PCS and
PMA datapath for 1G mode.
tx_latency_adj_1g[11:0]
Output
When you enable 1588, this signal outputs real time latency
in GMII clock cycles (125 MHz) for the TX PCS and PMA
datapath for 1G mode.
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