PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
OPL[1]
Type
Pin
No.
Function
Output E4
The outgoing payload active #1 (OPL[1]) signal
identifies synchronous payload envelope bytes
on the outgoing STM-4 or STM-1 #1 stream.
When AU3/TUG3 bypass is disabled (TUGEN
set high and TUGBYP set low), OPL[1] is set
high to mark synchronous payload envelop
bytes and set low to mark transport overhead
bytes. When AU3/TUG3 bypass is enabled
(TUGEN set low or TUGBYP set high), OPL[1] is
a delayed version of IPL[1].
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), OPL[1] is updated on
the rising edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), OPL[1] is updated on the
rising edge of HSCLK.
OPL[2]
Output G20 The outgoing payload active #2 (OPL[2]) signal
identifies synchronous payload envelope bytes
on the outgoing STM-1 #2 stream. When
AU3/TUG3 bypass is disabled (TUGEN set high
and TUGBYP set low), OPL[2] is set high to
mark synchronous payload envelop bytes and
set low to mark transport overhead bytes. When
AU3/TUG3 bypass is enabled (TUGEN set low
or TUGBYP set high), OPL[2] is a delayed
version of IPL[2].
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), OPL[2] is updated on
the rising edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), OPL[2] is invalid.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
71
PMC [ PMC-SIERRA, INC ]
