PM5362TUPP-PLUS
DATA SHEET
PMC-951010
ISSUE 6
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR / PERFORMANCE MONITOR
Pin Name Type
Pin
Function
No.
IC1J1
Input
44
The input C1/J1 frame pulse (IC1J1) identifies
the transport envelope and synchronous
payload envelope frame boundaries on the
incoming stream.
In incoming byte interface mode (IBMODE set
high), IC1J1 is set high while IPL is low to mark
the first C1 byte of the transport envelope frame
on the ID[7:0] bus. IC1J1 is set high while IPL is
high to mark each J1 byte of the synchronous
payload envelope(s) on the ID[7:0] bus. IC1J1
must be present at every occurrence of the first
C1 and all J1 bytes. The TUPP-PLUS will ignore
a pulse on IC1J1 at the byte position of the V1
byte of the first tributary of each VC3 or the top
byte of the first fixed stuff column of each TUG3.
IC1J1 is sampled on the rising edge of SCLK.
In incoming nibble interface mode (IBMODE set
low), IC1J1 is set high while IPL is low to mark
the more significant nibble of the first C1 byte of
the transport envelope frame on the ID[3:0] bus.
IC1J1 is set high while IPL is high to mark the
more significant nibble of each J1 byte of the
synchronous payload envelope(s) on the ID[3:0]
bus. IC1J1 must be present at every occurrence
of the first C1 and all J1 bytes. The TUPP-PLUS
will ignore a pulse on IC1J1 at the byte position
of the V1 byte of the first tributary of each VC3
or the top byte of the first fixed stuff column of
each TUG3. IC1J1 must be set low during the
less significant nibble timeslots. IC1J1 is
sampled on the rising edge of NSCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
15
PMC [ PMC-SIERRA, INC ]
