PM5362-1 Datasheet, PDF (319/354 Pages) –

PM5362 TUPP-PLUS
DATA SHEET
PMC-951010
ISSUE 6 SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR / PERFORMANCE MONITOR
Figure 19 - Output Bus Timing - Locked AU4 VC Case
SCLK
OC1J1
(O J1 E N = 0 )
••••
OPL=0
OTMF
(O TM F H 4 = 0 )
OTV5
OTPL
TPOH
LC1J1V1
LPL
O D [7 :0 ]
A2 C1 X X J1
R R R R R R V1
H4
R R R R R R V5 Z6
N ational
bytes
Im plicit loca tio n
of VC4 J1 byte
First R colum n of TU G3 #1
V1 byte TU #1, TUG 2 #1, TUG3 #1
Last H4 byte
in tributary
m ultifram e
Fixed
Stuff
Colum ns
V5 byte TU #1,
TUG2 #1, TUG3 #1
Z6 byte TU #1,
TUG2 #1, TUG3 #3
Figure 20 shows the function of the various output signals in floating AU4 mode.
Data on OD[7:0] is updated on the rising edge of SCLK. The bytes forming the
VC4 virtual container are identified by the setting the OPL signal high. The
OC1J1 signal pulses high, while OPL is set low, to mark the single C1 byte in
every frame of the AU4 transport envelope. The OC1J1 signal is set high again
with OPL high to mark the J1 byte of the VC4. The OTMF input is selectable to
mark the third byte after J1 in the VC4, or the H4 byte in the last (fourth) frame of
a tributary multiframe. In this diagram, OTMF is shown to be marking the first V1
byte. The bytes forming the various tributary synchronous payload envelopes are
identified by the OTPL signal being set high. The OTV5 signal pulses high to
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