PM5362TUPP-PLUS
DATA SHEET
PMC-951010
ISSUE 6
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR / PERFORMANCE MONITOR
Pin Name Type
Pin
Function
No.
IDLE
Output 115
The tributary idle indication signal output (IDLE)
marks tributaries on the outgoing stream that
are in idle state.
In outgoing byte interface mode (OBMODE set
high), IDLE is set high when idle code is
inserted in the associated tributary on the
OD[7:0] and is set low when the idle code is not
inserted. In floating mode, IDLE contains valid
data only for bytes in the VC3 or VC4 virtual
container(s), or the STS-1 synchronous payload
envelopes. Its value should be ignored for bytes
in the transport overhead. In locked mode, IDLE
is set low for transport overhead bytes. IDLE is
updated on the rising edge of SCLK.
In outgoing nibble interface mode (OBMODE set
low), IDLE is set high when idle code is inserted
in the associated tributary on the OD[3:0] and is
set low when the idle code is not inserted. In
floating mode, IDLE contains valid data only for
bytes in the VC3 or VC4 virtual container(s), or
the STS-1 synchronous payload envelopes. Its
value should be ignored for bytes in the
transport overhead. In locked mode, IDLE is set
low for transport overhead bytes. IDLE is
updated on the rising edge of NSCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
28
PMC [ PMC-SIERRA, INC ]
