cn8237 Mindspeed Technologies, cn8237 Datasheet - Page 111

• Manufacturer Part Number: cn8237
• Description: Atm Oc-12 Servicesar Plus With Xbr Traffic Management
• Manufacturer: Mindspeed Technologies

CN8237
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
Figure 5-2. Reassembly VCC Table
28237-DSH-001-C
Segmentation VCCs
5.2.1.1 Relation to
(RSM_TBASE(RSM_VCCB)<<7)
Base Register
VCC_INDEX.
VCC_INDEX = 0xFFFB
The reassembly VCC index assignment is independent from the assignment of
segmentation VCC indexes. A full duplex connection can have a segmentation
VCC_INDEX of 0x100, while its receive channel has a reassembly VCC_INDEX
of 0x800. This is especially important when a VP is represented by a single
segmentation VCC_INDEX, but each of its VCs is represented by its own distinct
reassembly VCC table entry.
associate a reassembly VCC with a segmentation channel. The
SEG_VCC_INDEX field in the reassembly VCC table allows one or many
reassembly channels to correlate to one specific segmentation VCC.
Figure 5-2
For several operations, most notably ABR, the CN8237 provides a method to
VCC_INDEX = 4
Mindspeed Technologies
(64 k VCCs)
illustrates how entries in the RSM VCC table are indexed by
Reassembly VCC Table
VCC Table Entry
VCC Table Entry
}
VCC_INDEX = 0xFFFF
VCC_INDEX = 0
12 Words = 1 Descriptor
™
5.2 Reassembly Functional Description
5.0 Reassembly Coprocessor
8237_038
5-3