PM5362TUPP-PLUS
DATA SHEET
PMC-951010
ISSUE 6
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR / PERFORMANCE MONITOR
Pin Name Type
Pin
Function
No.
TPOH
Output 105
The outgoing tributary path overhead byte
(OTV5) signal marks the tributary path overhead
bytes in the outgoing stream. For streams in
TU3 mode, the J1, B3,C2, G1, F2, H4, Z3, Z4
and Z5 bytes are marked. For streams out of
TU3 mode, V5, J2, Z6 an Z7 bytes are marked.
In outgoing byte interface mode (OBMODE set
high), TPOH is set high to mark each tributary
path overhead byte on the OD[7:0] bus. In
floating mode, TPOH contains valid data only for
bytes in the VC3 or VC4 virtual container(s), or
the STS-1 synchronous payload envelopes. Its
contents should be ignored for bytes in the
transport overhead. In locked mode, TPOH is
set low for transport overhead bytes. TPOH is
updated on the rising edge of SCLK.
In outgoing nibble interface mode (OBMODE set
low), TPOH is set high to mark each tributary
path overhead byte on the OD[3:0] bus. In
floating mode, TPOH contains valid data only for
bytes in the VC3 or VC4 virtual container(s), or
the STS-1 synchronous payload envelopes. Its
contents should be ignored for bytes in the
transport overhead. In locked mode, TPOH is
set low for transport overhead bytes. TPOH is
updated on the rising edge of NSCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
29
PMC [ PMC-SIERRA, INC ]
