Signal Name Direction Description
gmii_rx_err
Output
The GMII RX error signal. Synchronous to tx_clkout.
led_char_err
Output
10-bit character error. Asserted for one rx_clkout_1g
cycle when an erroneous 10-bit character is detected.
led_link
Output When asserted, this signal indicates successful link
synchronization.
led_disp_err
Output When asserted, this signal indicates a 10-bit running
disparity error. Asserted for one rx_clkout_1g cycle when
a disparity error is detected. A running disparity error
indicates that errors were detected on more received
groups than the previous and possibly current groups.
led_an
Output This signal indicates the auto-negotiation status. The PCS
function asserts this signal when an auto-negotiation
completes.
2.6.4.6.5. Serial Data Interface
Table 140. Serial Data Signals
Signal Name Direction Description
rx_serial_data
Input RX serial input data
tx_serial_data
Output TX serial output data
2.6.4.6.6. Control and Status Interfaces
Table 141. Control and Status Signals
Signal Name Direction Clock Domain Description
led_link
Output Synchronous to
tx_clkout
When asserted, indicates successful link synchronization.
led_disp_err
Output Synchronous to
rx_clkout
Disparity error signal indicating a 10-bit running disparity
error. Asserted for one rx_clkout_1g cycle when a
disparity error is detected. A running disparity error
indicates that more than the previous and perhaps the
current received group had an error.
led_an
Output Synchronous to
rx_clkout
Clause 37 Auto-negotiation status. The PCS function
asserts this signal when auto-negotiation completes.
led_panel_link
Output Synchronous to
mgmt_clk
When asserted, this signal indicates the following
behavior:
Mode Behavior
1000 Base-X without Auto-
negotiation
When asserted, indicates
successful link
synchronization.
continued...
2. Implementing Protocols in Arria 10 Transceivers
UG-01143 | 2018.06.15
Intel
®
Arria
®
10 Transceiver PHY User Guide
178
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