User guide

Signal Name Direction Description
rx_ready Output Indicates PMA RX has exited the reset state and the
transceiver can receive data. Synchronous to mgmt_clk.
tx_ready Output Indicates PMA TX has exited the reset state and the
transceiver can transmit data. Synchronous to mgmt_clk.
pll_cal_busy_i Input Indicates the PLL calibration status.
XAUI PHY Optional PMA Control and Status Interface
Use the Avalon-MM PHY Management interface to read the state of the optional PMA control and status
signals available in the XAUI PHY IP core registers. In some cases you may need to know the instanta‐
neous value of a signal to ensure correct functioning of the XAUI PHY. In such cases, you can include the
required signal in the top-level module of your XAUI PHY IP core.
Table 2-149: Optional Control and Status Signals—Soft IP Implementation
Signal Name Direction Description
rx_channelaligned Output When asserted, indicates that all 4 RX channels
are aligned. Synchronous to mgmt_clk.
rx_disperr[7:0] Output Received 10-bit code or data group has a
disparity error. It is paired with rx_errdetect
which is also asserted when a disparity error
occurs. The rx_disperr signal is 2 bits wide
per channel for a total of 8 bits per XAUI link.
Synchronous to mgmt_clk.
rx_errdetect[7:0] Output When asserted, indicates an 8B/10B code
group violation. It is asserted if the received 10-
bit code group has a code violation or disparity
error. Use rx_errdetect with the rx_disperr
signal to differentiate between a code violation
error, a disparity error, or both. The rx_
errdetect signal is 2 bits wide per channel for
a total of 8 bits per XAUI link. Synchronous to
mgmt_clk.
rx_syncstatus[7:0] Output Synchronization indication. RX synchroniza‐
tion is indicated on the rx_syncstatus port of
each channel. The rx_syncstatus signal is 2
bits per channel for a total of 8 bits per hard
XAUI link. The rx_syncstatus signal is 1 bit
per channel for a total of 4 bits per soft XAUI
link. Synchronous to mgmt_clk.
UG-01143
2015.05.11
XAUI PHY Optional PMA Control and Status Interface
2-223
Implementing Protocols in Arria 10 Transceivers
Altera Corporation
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