PM5364 pmc-sierra, PM5364 Datasheet - Page 196

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

13.8
13.8.1
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
VT Path
Type
VT6
VT6
TU3
TU3
TU3
TU3
TU3
TU3
TU3
TU3
TU3
TU3
Notes
•
The TBER can suspend counting and monitoring of the BIP-2 errors. This can be used to
suppress SD/DEXC threshold crossings during AIS, LOP, LOM, UNEQ, PDI, TIM, and TIU
alarms reported by the RTOP block. The suspend feature is enabled by setting the
SUSPEND_EN bit of the TASR Configuration Register. A LOM or LOP alarm will halt the
BER count for the associated tributary if the LOPLOMPDI of the RTOP Indirect Tributary Data
Register #5 is set to a logic 1. Similarly, the RTOP AIS, UNEQ, PDI, TIM or TIU alarms will
halt the BER count for a tributary if the associated RTOP AISPDI, UNEQPDI, PDIVPDI,
TIMPDI, or TIUPDI bit, respectively, is set to a logic 1.
Wideband Switch Fabric Subsystem Operation
This section describes operation of the Wideband Switch Fabric in TUPP 2488.
“J0” Synchronization for Wideband Switches
Any Wideband Time/Space/Time fabric can be viewed as a collection of “columns” of devices.
For example in a Hairpinning application in TUPP 2488: column 0 consists of the ingress flow
(e.g., Payload processing sub-system); column 1 consists of the ingress flow through the ingress
MSUs; column 2 consists of the CCB; column 3 consists of the egress flow through the egress
MSUs; and column 4 consists of the egress flow through the SVCAs. Path-aligned STS-12
frames are pipelined through this structure in a regular fashion, under control of a single clock
source and frame pulse. There are latencies between these columns, and these latencies may
vary from path to path. The following design is used to accommodate these latencies.
The declaration period and removal period values above are designed to meet or exceed both ITU
and Telcordia maximum detection and clearing time requirements with the required confidence.
BER
1.00E-11
1.00E-12
1.00E-03
1.00E-04
1.00E-05
1.00E-06
1.00E-07
1.00E-08
1.00E-09
1.00E-10
1.00E-11
1.00E-12
Declaration
Period
033430E61
2009E8FCA
000000005
000000019
0000000F3
000000968
000005DFD
00003ABCA
00024B5D5
0016F1A3E
00E57065C
08F663F98
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Declaration
Threshold
11
11
16
11
11
11
11
11
11
11
11
11
Removal
Period
042668123
298010B5E
000000006
000000023
00000014D
000000CF1
000008159
000050D67
0003285FB
001F93BBD
013BC5550
0C55B5520
Removal
Threshold
0A
0A
0E
0C
0B
0B
0B
0B
0B
0B
0B
0B
Released
196