PM5345 datasheet(33/196 Pages) PMC

33 / 196 page

PM5345 S/UNI-155

DATA SHEET

PMC-930305

ISSUE 4

SATURN USER NETWORK INTERFACE

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Pin Name

Type

No.

Function

RCLK

Output

156

The receive clock (RCLK) output provides a

timing reference for S/UNI receive outputs.

RCLK is a 19.44 MHz, nominally 50% duty

cycle clock. RCLK is a buffered version of

PICLK when the byte serial interface is

selected (RSER is tied low). RCLK is a divide

by eight of RXC+/- when the bit serial interface

is selected (RSER is tied high).

TSER

Input

The transmit serial input (TSER) selects the

transmit line interface. TSER is tied high to

select the 155.52 Mbit/s interface (on pins

TXCI+, TXCI-, TXCO+, TXCO-, TXD+, and

TXD-). TSER is tied low to select the 19.44

Mbyte/s interface (on pins TCLK, FPOUT, and

POUT[7:0]).

TXD+

TXD-

Output

The transmit differential data/positive pulse

outputs (TXD+, TXD-) contain either NRZ or

MLT-3 encoded data when the bit serial

interface is selected (TSER is tied high).

When NRZ encoding is selected (FPOS/MLT is

tied low), the 155.52 Mbit/s transmit STS-3c

(STM-1) stream TXD+/- is updated on the

falling edge of TXCO+/-.

When MLT-3 encoding is selected (FPOS/MLT

is tied high), the TXD+/- outputs contain the

positive pulses of the MLT-3 encoded stream.

TXCI+

TXCI-

Input

The transmit differential clock inputs (TXCI+,

TXCI-) contain the transmit clock when the bit

transmit serial interface is selected. TXCI+/- is

nominally a 155.52 MHz, 50% duty cycle clock.

This clock provides timing for the S/UNI

transmit functions. TXCI+/- may be left

unconnected when S/UNI loop timing is

enabled (using the S/UNI Master Control

PM5345 Datasheet(PDF) 33 Page - PMC-Sierra, Inc

PM5345 Datasheet(HTML) 33 Page - PMC-Sierra, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL