CN8236EBGB Mindspeed Technologies, CN8236EBGB Datasheet - Page 113

• Manufacturer Part Number: CN8236EBGB
• Description: ATM SAR 155Mbps 3.3V ABR/CBR/GFR/UBR/VBR 388-Pin BGA
• Manufacturer: Mindspeed Technologies

Specifications of CN8236EBGB

• Package: 388BGA
• Traffic Class: ABR|CBR|GFR|UBR|VBR
• Utopia Type: Level 1|Level 2
• Host Interface: PCI
• Maximum Data Rate: 155 Mbps
• Typical Operating Supply Voltage: 3.3 V
• Minimum Operating Supply Voltage: 3 V

CN8236
ATM ServiceSAR Plus with xBR Traffic Management
Figure 5-2. Reassembly VCC Table
28236-DSH-001-B
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 CN8236 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
8236_021
5-3