cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 312
cn8236
Manufacturer Part Number
cn8236
Description
Atm Servicesar Plus With Xbr Traffic Management
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8236.pdf
(443 pages)
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13.0 AALx Interworking
13-2
Table 13-1. SEG_VCC_INDEX Format Table
Table 13-2. RSM_ROUTE_TAG Format Table
Word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
0
Reserved
format of the word is as follows in
the RSM_ROUTE_TAG is added. This eliminates the need for a lookup
algorithm in the AALx and still allows the AALx to perform AAL5 processing
since the PTI field is passed. On the segmentation side, the same header word is
passed from the AALx to the SAR. The SEG block can use the VCC_INDEX to
determine the routing tag and also to support PM-OAM in the future. The PTI
field is passed to the cell without change; however, the CLP bit is ORed with the
CLP bit in the ATM HEADER field of the VCC table entry.
registers, a central PCI resource is required. This consists of a processor and
central PCI bridge chip.
NOTE:
The header word of each contains the VCC_INDEX of the channel. The
SEG:
Reserved (12 bits) | SEG_VCC_INDEX (16) | PTI (3) | CLP (1)
RSM:
RSM_ROUTE_TAG (28) | PTI (3) | CLP (1)
On reassembly, the VPI and VCI are stripped from the ATM header word, and
In order to generate management traffic and to configure the AALx PCI
PM-OAM operation does not work with this configuration.
Mindspeed Technologies
RSM_ROUTE_TAG
ATM ServiceSAR Plus with xBR Traffic Management
Tables 13-1
SEG_VCC_INDEX
™
and 13-2:
28236-DSH-001-B
PTI
PTI
CN8236
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