PM5352 datasheet(16/77 Pages) PMC

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PM5352 S/UNI STAR

DATA SHEET

PMC-1990421

ISSUE 2

SATURN USER NETWORK INTERFACE 155 (STAR)

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

Pin Name

Type

No.

Function

RFPO

Output

AB13

The Receive Frame Pulse Output (RFPO), when

the framing alignment is found (the OOF register bit

is logic zero), is an 8 kHz signal derived from the

receive line clock. RFPO pulses high for one RCLK

cycle every 2430 RCLK cycles (STS-3c (STM-1)).

RFPO is updated on the rising edge of RCLK.

RALRM

Output

AB15

The Receive Alarm (RALRM) output indicates the

state of the receive framing. RALRM is low if no

receive alarms are active. RALRM is high if line

AIS (LAIS), path AIS (PAIS), line RDI (LRDI), path

RDI (PRDI), enhanced path RDI (PERDI), loss of

signal (LOS), loss of frame (LOF), out of frame

(OOF), loss of pointer (LOP), loss of cell delineation

(LCD), signal fail BER (SFBER), signal degrade

BER (SDBER), path trace identification mismatch

(TIM), path signal label mismatch (PSLM) is

detected in the channel. Each alarm can be

individually enabled using bits in the S/UNI-STAR

Channel Alarm Control registers #1 and #2.

RALRM is updated on the rising edge of RCLK.

TXD+

TXD-

Differential

TTL output

(externally

converted

to PECL)

The transmit differential data outputs (TXD+, TXD-)

contain the 155.52 Mbit/s transmit stream.

TXC+

TXC-

Differential

TTL output

(externally

converted

to PECL)

The transmit differential clock outputs (TXC+, TXC-)

contain the 155.52 Mbit/s transmit clock.

TXC+/- must be enabled by setting the TXC_OE

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