PM7347 datasheet(38/341 Pages) PMC

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S/UNI®-JET Data Sheet

Released

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

Document ID: PMC-1990267, Issue 3

Pin Name

Type

No.

Function

TPOHINS

Input

V14

The Transmit Path Overhead Insertion (TPOHINS)

controls the insertion of PLCP overhead octets on the

TPOH input. When TPOHINS is logic one, the

associated overhead bit in the TPOH stream is inserted

in the transmit PLCP frame. When TPOHINS is logic

zero, the PLCP path overhead bit is generated and

inserted internally.

TPOHINS is sampled on the rising edge of TPOHCLK.

Note: When operating in G.751 E3 PLCP mode, bits 8, 7,

and 6 of the C1 octet should not be manipulated.

TPOH

TDATI

Input

Y15

The Transmit PLCP Overhead Data (TPOH) valid when

the FRMRONLY bit in the S/UNI-JET Configuration 1

overhead octets (Zn, F1, B1, G1, M1, M2, and C1) which

may be inserted in the transmit PLCP frame. The octet

data on TPOH is shifted in order from the most

significant bit (bit 1) to the least significant bit (bit 8).

TPOH is sampled on the rising edge of TPOHCLK.

The Framer Transmit Data (TDATI) contains the serial

data to be transmitted when the S/UNI-JET is configured

as a DS3, E3, or J2 framer device for non-ATM

applications by setting the FRMRONLY bit in the S/UNI-

JET Configuration 1 Register.

TDATI is sampled on the rising edge of TICLK if the

TXGAPEN register bit in the S/UNI-JET Configuration 2

TDATI is sampled on the falling edge of TGAPCLK.

PM7347 Datasheet(PDF) 38 Page - PMC-Sierra, Inc