Altera 100G Interlaken MegaCore Function User Manual

Page 79

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Offset

Name

R/W

Description

9'h23

CRC0

RO

4 bit counters indicating CRC errors in lanes 7,6,5,4,3,2,1,0.
These will saturate at F, and you clear them by setting bit 6

in the RESET register.
If you turn off Include diagnostic features, this register is

not available.

9'h24

CRC1

RO

4 bit counters indicating CRC errors in lanes

15,14,13,12,11,10,9,8.
These will saturate at F, and you clear them by setting bit 6

in the RESET register.
If you turn off Include diagnostic features, this register is

not available.

9'h25

CRC2

RO

4 bit counters indicating CRC errors in lanes

23,22,21,20,19,18,17,16.
These will saturate at F, and you clear them by setting bit 6

in the RESET register.
If you turn off Include diagnostic features, this register is

not available.

9'h27

SH_ERR

RO

[NUM_LANES–1:0] – Sticky flag indicating a sync header

(framing bit) error has occurred in the corresponding RX

lane since this bit was last cleared through the RESET

register.

9'h28

RX_LOA

RO

Bit [0] – Sticky flag indicating loss of RX side lane-to-lane

alignment since this bit was last cleared through the RESET

register. Typically, the IP core asserts this bit in case of a

catastrophic problem such as one or more lanes going

down.

9'h29

TX_LOA

RO

Bit [0] – Sticky flag indicating loss of TX side lane to lane

alignment since this bit was last cleared through the RESET

register. Typically, the IP core asserts this bit in case of a TX

FIFO underflow / overflow caused by a significant deviation

from the expected data flow rate through the TX PCS.

9'h30

PCS_6SEL

RO

Transceiver block selection for PCS test bus. (Factory use

only).
If you turn off Include diagnostic features, this register is

not available.

6-4

100G Interlaken IP Core Register Map

UG-01128

2015.05.04

Altera Corporation

100G Interlaken IP Core Register Map

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