PMC-Sierra, Inc.
PM5356
S/UNI-622-MAX
DATASHEET
S/UNI-622-MAX
PMC-1980589
ISSUE 5
SATURN USER NETWORK INTERFACE (622-MAX)
Pin Name
Type
Pin
No.
Function
RSOC
Output
P23
The UTOPIA receive start of cell (RSOC) signal marks the start
of a cell structure on the RDAT bus.
In 16-bit Level 2 ATM mode, the first word of the cell structure is
present on the RDAT[15:0] bus when RSOC is high. RSOC is
tri-stated when RENB is sampled high.
In 8-bit Level 3 ATM mode, the first byte of the cell structure is
present on the RDAT[7:0] bus when RSOC is high. RDAT[15:8]
are invalid and must be ignored.
RSOC is updated on the rising edge of RFCLK.
RPRTY
Output
P21
The UTOPIA receive parity (RPRTY) signal indicates the parity
of the RDAT bus.
When in 16-bit Level 2 ATM mode, the RPRTY signal indicates
the parity on the RDAT[15:0] bus. RPRTY is tri-stated when
RENB is sampled high. Odd or even parity selection is made in
the RXCP registers.
When in 8-bit Level 3 ATM mode, the RPRTY signal indicates
the parity on the RDAT[7:0] bus. Odd or even parity selection is
made in the RUL3 registers.
RPRTY is updated on the rising edge of RFCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
28
PMC [ PMC-SIERRA, INC ]
