PM5351 datasheet(41/393 Pages) PMC

41 / 393 page

S/UNI-TETRA

PMC-Sierra, Inc.

PM5351 S/UNI-TETRA

DATASHEET

PMC-1971240

ISSUE 7

SATURN USER NETWORK INTERFACE (155-TETRA)

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

Pin Name

Type

No.

Function

RALRM1

RALRM2

RALRM3

RALRM4

Output

AA14

AC15

Y14

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 associated channel. Each alarm can be

individually enabled using bits in the S/UNI-TETRA

Channel Alarm Control registers #1 and #2.

RALRM is updated on the rising edge of RCLK.

This pin is available independently for each

channel.

TXD1+

TXD1-

TXD2+

TXD2-

TXD3+

TXD3-

TXD4+

TXD4-

Differential

TTL output

(externally

converted

to PECL)

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

contain the 155.52 Mbit/s transmit stream.

This pin is available independently for each

channel.

TXC1+

TXC1-

TXC2+

TXC2-

TXC3+

TXC3-

TXC4+

TXC4-

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

clocks significantly increases the device power

consumption and will likely require airflow. Most

optic modules don’t require TXC+/-.

TXD+/- is updated on the falling edge of TXC+/-.

This pin is available independently for each

channel.

PM5351 Datasheet(PDF) 41 Page - PMC-Sierra, Inc

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