PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
OPL[3]
Type
Pin
No.
Function
Output L23
The outgoing payload active #3 (OPL[3]) signal
identifies synchronous payload envelope bytes
on the outgoing STM-1 #3 stream. When
AU3/TUG3 bypass is disabled (TUGEN set high
and TUGBYP set low), OPL[3] 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[3] is a delayed
version of IPL[3].
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), OPL[3] is updated on
the rising edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), OPL[3] is invalid.
AC11
OPL[4]
Output
The outgoing payload active #4 (OPL[4]) signal
identifies synchronous payload envelope bytes
on the outgoing STM-1 #4 stream. When
AU3/TUG3 bypass is disabled (TUGEN set high
and TUGBYP set low), OPL[4] 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[4] is a delayed
version of IPL[4].
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), OPL[4] is updated on
the rising edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), OPL[4] is invalid.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
72
PMC [ PMC-SIERRA, INC ]
