PM8621 datasheet(25/184 Pages) PMC

25 / 184 page

NSE-8G™ Standard Product Data Sheet

Preliminary

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

Document ID: PMC-2010850, Issue 1

Pin Description

8.1

Pin Description Table

Pad Name

Type

Pin No.

Function

LVDS Ports (128 Balls)

RP[1]

RN[1]

RP[2]

RN[2]

RP[3]

RN[3]

RP[4]

RN[4]

RP[5]

RN[5]

RP[6]

RN[6]

RP[7]

RN[7]

RP[8]

RN[8]

RP[9]

RN[9]

RP[10]

RN[10]

RP[11]

RN[11]

RP[12]

RN[12]

Analog

LVDS Input

AB4

AB3

AC3

AC2

AD4

AD3

AD2

AD1

Receive Serial Data. The differential receive serial data

links (RP[11:0]/RN[11:0]) carry the receive SBI336S or

SONET/SDH STS-12 frame data from upstream sources

in bit serial format. Each differential pair RP[X]/RN[X]

carries a constituent SBI336 or STS-12 stream. Data on

RP[X]/RN[X] is encoded in an 8B/10B format extended

from IEEE Std. 802.3. The 8B/10B character bit ‘a’ is

transmitted first and the bit ‘j’ is transmitted last. All

RP[X]/RN[X] differential pairs must be frequency locked

and phase aligned (within a certain tolerance) to each

other. RP[11:0]/RN[11:0] are nominally 777.6 Mbit/s data

streams.

Any unused or N/C, but available inputs should be tied

low using a 10 k resistor.

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