PM5362TUPP-PLUS
DATA SHEET
PMC-951010
ISSUE 6
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR / PERFORMANCE MONITOR
Pin Name Type
Pin
Function
No.
The outgoing composite frame pulse (OC1J1) marks
the transport frame and synchronous payload
envelope frame boundaries on the outgoing stream.
OC1J1
Input
127
In outgoing byte interface mode (OBMODE set high),
and the OJ1EN register bit is set low, OC1J1 pulses
high to mark the first C1 byte of the transport
envelope frame on the OD[7:0] bus. The OPL input
must be held low. The position of the J1 byte(s) is
implicit and fixed to the bytes immediately following
the last C1 byte. When the OJ1EN register bit is set
high, the OC1J1 signal pulses high while OPL is low
to mark the first C1 byte of the transport frame on
the OD[7:0] bus and pulses high while OPL is high to
mark each of the J1 bytes of the synchronous
payload envelope(s) on the OD[7:0] bus. OC1J1
must be present at every occurrence of the first C1
byte and all J1 bytes. A V1 pulse added to the
OC1J1 input will be ignored by the TUPP-PLUS.
OC1J1 is sampled on the rising edge of SCLK.
In outgoing nibble interface mode (OBMODE set
low), and the OJ1EN register bit is set low, OC1J1
pulses high to mark the more significant nibble of the
first C1 byte of the transport envelope frame on the
OD[3:0] bus. The OPL input must be held low. The
position of the J1 byte(s) is implicit and fixed to the
bytes immediately following the last C1 byte. When
the OJ1EN register bit is set high, the OC1J1 signal
pulses high while OPL is low to mark the more
significant nibble of the first C1 byte of the transport
frame on the OD[3:0] bus and pulses high while OPL
is high to mark each of the J1 bytes of the
synchronous payload envelope(s) on the OD[3:0]
bus. OC1J1 must be present at every occurrence of
the first C1 byte and all J1 bytes. A V1 pulse added
to the OC1J1 input will be ignored by the TUPP-
PLUS. OC1J1 must be set low during the less
significant nibble timeslots. OC1J1 is sampled on
the rising edge of NSCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
20
PMC [ PMC-SIERRA, INC ]
