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Altera Transceiver PHY IP Core User Manual

Page 477

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Name

Dir

Synchro‐

nous to tx_

10g_

coreclkin/

rx_10g_

coreclkin

Description

Rx_10g_fifo_insert
[-1:0]

Output

Yes

Active-high 10G BaseR RX FIFO insertion flag
When asserted, indicates that a word has been

inserted into the TX FIFO. This signal is used for

the 10GBASE-R protocol.

CRC32

rx_10g_crc32err
[-1:0]

Output

No

For the Interlaken protocol, asserted to indicate

that the CRC32 Checker has found a CRC32 error

in the current metaframe. Is is asserted at the end

of current metaframe. This signal is

pulse-stretched; you must use a synchronizer.

Frame Generator

tx_10g_diag_status
[2-1:0]

Input

No

For the Interlaken protocol, provides diagnostic

status information reflecting the lane status

message contained in the Framing Layer

Diagnostic Word (bits[33:32]). This message is

inserted into the next Diagnostic Word generated

by the Frame Generation Block. The message must

be held static for 5 cycles before and 5 cycles after

the tx_frame pulse.

tx_10g_burst_en
[-1:0]

Input

No

For the Interlaken protocol, controls frame

generator reads from the TX FIFO. Latched once

at the beginning of each metaframe.When 0, the

frame generator inserts SKIPs. When 1, the frame

generator reads data from the TX FIFO. Must be

held static for 5 cycles before and 5 cycles after the

tx_frame

pulse.

tx_10g_frame
[-1:0]

Output

No

For the Interlaken protocol, asserted to indicate

the beginning of a new metaframe inside the frame

generator. This signal is pulse-stretched; you must

use a synchronizer.

Frame Synchronizer

rx_10g_frame
[-1:0]

Output

No

For the Interlaken protocol, asserted to indicate

the beginning of a new metaframe inside the frame

synchronizer. This signal is pulse-stretched, you

must use a synchronizer. This signal is

pulse-stretched; you must use a synchronizer.

14-66

10G PCS Interface

UG-01080

2015.01.19

Altera Corporation

Arria V GZ Transceiver Native PHY IP Core

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