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S/UNI-QUAD
PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
16
Pin Name Type Pin
No.
Function
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.