PMC-Sierra PM5349 manual Tprty, Tsoc

Models: PM5349

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PMC-Sierra, Inc.

PM5349 S/UNI-QUAD

 

S/UNI-QUAD

 

 

 

 

 

 

 

DATASHEET

 

 

 

 

 

 

 

 

 

 

 

 

PMC-971239

ISSUE 6

 

SATURN USER NETWORK INTERFACE (155-QUAD)

 

 

 

 

 

 

Pin Name

Type

Pin

Function

 

 

No.

 

 

 

 

 

TPRTY

Input

H22

UTOPIA Transmit bus parity (TPRTY) signal.

 

 

 

The transmit parity (TPRTY) signal indicates the

 

 

 

parity of the TDAT[15:0] bus. A parity error is

 

 

 

indicated by a status bit and a maskable interrupt.

 

 

 

Cells with parity errors are inserted in the transmit

 

 

 

stream, so the TPRTY input may be unused. Odd or

 

 

 

even parity selection is made independently for

 

 

 

each channel using the RXPTYP register bit.

 

 

 

TPRTY is considered valid only when TENB is

 

 

 

simultaneously asserted and the S/UNI-QUAD is

 

 

 

selected via TADR[4:0].

 

 

 

TPRTY is sampled on the rising edge of TFCLK.

 

 

 

 

TSOC

Input

J21

UTOPIA Transmit Start of Cell (TSOC) signal.

 

 

 

The transmit start of cell (TSOC) signal marks the

 

 

 

start of cell on the TDAT bus. When TSOC is high,

 

 

 

the first word of the cell structure is present on the

 

 

 

TDAT bus. It is not necessary for TSOC to be

 

 

 

present for each cell. An interrupt may be

 

 

 

generated if TSOC is high during any word other

 

 

 

than the first word of the cell structure.

 

 

 

TSOC is considered valid only when TENB is

 

 

 

simultaneously asserted and the S/UNI-QUAD is

 

 

 

selected via TADR[4:0].

 

 

 

TSOC is sampled on the rising edge of TFCLK.

 

 

 

 

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

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PMC-Sierra PM5349 manual Tprty, Tsoc