beautypg.com

Altera Transceiver PHY IP Core User Manual

Page 468

background image

Name

Dir

Synchro‐

nous to tx_

std_

coreclkin/

rx_std_

coreclkin

Description

tx_std_bitslipboun-

darysel[5-1:0]

Input

No

BitSlip boundary selection signal. Specifies

the number of bits that the TX bit slipper

must slip.

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

.

Miscellaneous

UG-01080

2015.01.19

Standard PCS Interface Ports

14-57

Arria V GZ Transceiver Native PHY IP Core

Altera Corporation

Send Feedback