PM5364 pmc-sierra, PM5364 Datasheet - Page 176

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
•
•
Transport overhead and path overhead bytes are shown for notational convenience only. In the
incoming direction, except for the H4 byte, input data does not need to contain valid transport
and STS/AU path overhead byte values Figure 34 shows an STS-12 (STM-4) frame carrying 12
STS-1 frames. The entire frame increments across the 12 STS-1 frames in a round-robin
fashion. Therefore, every 12
each of the 12 frames is shown to have a zero offset such that the SPE begins in the column
immediately following the POH for the given STS-1. However, the offset may cause the SPE to
begin anywhere within the frame. Additionally, each of the 12 STS-1 frames may have an
independent offset.
Figure 34 STS-12 Frame with 12 Interleaved STS-1s
STS-1
A sample placement of tributaries in STS-1 is illustrated in Figure 35. The figure shows a single
STS-1 frame which is interleaved in the received STS-12 frame. For simplicity, this figure
shows the synchronous payload envelope starting immediately after the J0 byte. Other
alignments of the SPE with respect to the STS-1 frame are possible. This snapshot shows the
first frame of the tributary multiframe when the V1 bytes are present. In subsequent frames, the
byte position labeled V1 would sequentially carry the V2, V3, and V4 bytes. For improved
readability, only the VT SPE bytes in the first column are labeled; those in the remaining
columns are left blank. All tributary groups in Figure 35 are configured for VT1.5 streams.
1
2
3
4
5
6
7
8
9
TU3: This is enabled when the TU3 bit of a frame configuration register is set high. A single
TU3 is placed in a TUG3 which forms one-third of the VC4. Each TUG3 in the VC4 may
be independently configured for TU3 or TUG3.
Transparent: This is used to conduct AU3/VC3/C3 frame configurations. Tributary level
interrupts and alarms can be disabled because they have no relevance in a payload with no
tributaries. The tributary path may accept frames in this format, but can only produce valid
data from this format by converting it to a an AU4/VC4/TUG3/TU3/VC3 frame
configuration. Other wise the Bypass path is used to process this type of traffic.
1
Overhead
Transport
36
...
3
6
3
7
P
O
H
S
T
S
1
P
O
H
S
T
S
2
P
O
H
S
T
S
3
P
O
H
S
T
S
4
P
O
H
S
T
S
5
...
P
O
H
S
T
S
6
12
P
O
H
S
T
S
7
P
O
H
S
T
S
8
P
O
H
S
T
S
9
th
P
O
H
S
T
S
1
0
byte (column) belongs to the same STS-1 frame. For simplicity,
P
O
H
S
T
S
1
1
4
8
P
O
H
S
T
S
1
2
4
9
S
P
E
S
T
S
1
S
P
E
S
T
S
2
S
P
E
S
T
S
3
S
P
E
S
T
S
4
S
P
E
S
T
S
5
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
...
S
P
E
S
T
S
6
S
P
E
S
T
S
7
S
P
E
S
T
S
8
S
P
E
S
T
S
9
336
S
P
E
S
T
S
1
0
S
P
E
S
T
S
1
1
6
0
S
P
E
S
T
S
1
2
6
1
S
P
E
S
T
S
1
S
P
E
S
T
S
2
S
P
E
S
T
S
3
...
...
3
8
3
S
P
E
S
T
S
1
1
3
8
4
S
P
E
S
T
S
1
2
3
8
5
R
S
T
S
1
3
8
6
R
S
T
S
2 ...
12
...
3
9
5
R
S
T
S
1
1
3
9
6
R
S
T
S
1
2
3
9
7
S
P
E
S
T
S
1
3
9
8
S
P
E
S
T
S
2
336
...
...
7
3
1
S
P
E
S
T
S
1
1
7
3
2
S
P
E
S
T
S
1
2
7
3
3
R
S
T
S
1
7
3
4
R
S
T
S
2 ...
Released
12
...
7
4
3
R
S
T
S
1
1
7
4
4
R
S
T
S
1
2
176
7
4
5
S
P
E
S
T
S
1
7
4
6
S
P
E
S
T
S
2
336
...
...
1
0
7
9
S
P
E
S
T
S
1
1
1
0
8
0
S
P
E
S
T
S
1
2