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Altera Transceiver PHY IP Core User Manual

Page 355

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Name

Dir

Synchronous to

tx_std_coreclkin/

rx_std_coreclkin

Description

rx_std_bitslipboun-

darysel[5-1:0]

Output No

This signal operates when the word aligner

is in bitslip word alignment mode. It

reports the number of bits that the RX

block slipped to achieve deterministic

latency.

rx_std_runlength_err[-

1:0]

Output No

When asserted, indicates a run length

violation. Asserted if the number of

consecutive 1s or 0s exceeds the number

specified in the parameter editor GUI.

rx_st_wa_patternalign

Input

No

Active when you place the word aligner in

manual mode. In manual mode, you align

words by asserting rx_st_wa_patternalign.

rx_st_wa_patternalign is edge sensitive.
For more information refer to the Word

Aligner section in the Transceiver Architec‐

ture in Arria V Devices.

rx_std_wa_a1a2size[-

1:0]

Input

No

Used for the SONET protocol. Assert

when the A1 and A2 framing bytes must

be detected. A1 and A2 are SONET

backplane bytes and are only used when

the PMA data width is 8 bits.

rx_std_bitslip[-1:0]

Input

No

Used when word aligner mode is bitslip

mode. For every rising edge of the

rx_std_

bitslip

signal, the word boundary is

shifted by 1 bit. Each bitslip removes the

earliest received bit from the received data.

This is an asynchronous input signal and

inside there is a synchronizer to

synchronize it with

rx_pma_clk/rx_

clkout

.

PRBS

rx_std_prbs_done

Output Yes

When asserted, indicates the verifier has

aligned and captured consecutive PRBS

patterns and the first pass through a

polynomial is complete. The generator has

restarted the polynomial.

UG-01080

2015.01.19

Standard PCS Interface Ports

12-57

Stratix V Transceiver Native PHY IP Core

Altera Corporation

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