PXB4221 Infineon Technologies AG, PXB4221 Datasheet - Page 228
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PXB4221
Manufacturer Part Number
PXB4221
Description
IWE8 Interworking Element for 8 E1/T1 Lines
Manufacturer
Infineon Technologies AG
Datasheet
1.PXB4221.pdf
(290 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PXB4221EV3.2
Manufacturer:
INFIEON
Quantity:
20 000
- Current page: 228 of 290
- Download datasheet (5Mb)
8.2
Reset Statistics Counters and µP RAM variables before connection setup
atmfCESReassCells
Accumulated values from IWE8 Statistics Counter #2 destructive read accesses
atmfCESHdrErrors
Accumulated values from IWE8 Statistics Counter #6 destructive read accesses
atmfCESPointerReframes
CES Version 2.0 MIB recommends "This records the count of the number of events in
which the AAL1 reassembler found that an SDT pointer is not where it is expected, and
the pointer must be reacquired.“
"Pointer is not where it is expected" can mean.
a) no pointer occurs within an 8-cell-cycle
b) two pointers occur within an 8-cell-cycle
c) pointer is not in the 2nd byte of ATM cell payload,
Error case a) and b) causes incrementation of Statistics Counter #11.
All error cases a), b) and c) causes loss of synchronization of AtmStartOfStructure (IWE8
reassembly buffer read pointer to structure start in ATM cell) with PortStartOfStructure
(pointer to structure start in framer interface port), so that Statistics Counter #14
increments.
==> Accumulated values from IWE8 Statistics Counter #14 destructive read accesses.
atmfCESPointerParityErrors
Accumulated values from IWE8 Statistics Counter #10 destructive read accesses
atmfCESAal1SeqErrors
Accumulated values from IWE8 Statistics Counter #7 destructive read accesses
atmfCESLostCells
Accumulated values from IWE8 Statistics Counter #15 destructive read accesses
atmfCESMisinsertedCells
Accumulated values from IWE8 Statistics Counter #8 destructive read accesses
Data Sheet
Translating AAL Statistics Counters into the ATM Forum CES
Version 2 MIB
228
PXB4219 / PXB4220 / PXB4221
Application Hints
2002-05-06
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