CN8237EBGB Mindspeed Technologies, CN8237EBGB Datasheet - Page 39

• Manufacturer Part Number: CN8237EBGB
• Description: ATM SAR 622Mbps 3.3V ABR/CBR/GFR/UBR/VBR 456-Pin BGA
• Manufacturer: Mindspeed Technologies

Specifications of CN8237EBGB

• Package: 456BGA
• Traffic Class: ABR|CBR|GFR|UBR|VBR
• Utopia Type: Level 1|Level 2
• Host Interface: PCI
• Maximum Data Rate: 622 Mbps
• Typical Operating Supply Voltage: 3.3 V
• Minimum Operating Supply Voltage: 3.135 V

CN8237
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
Figure 2-3. Interaction of Queues with CN8237 Functional Blocks
28237-DSH-001-C
HOST
SEG Status Queue
Global OAM Rsm
SEG Status
RSM Status
Status Queue
Global OAM
Queues
Queues
Interface
PCI Bus
associate the host with the CN8237 during processing and associate each of the
major functional blocks of the CN8237 with each other.
these interactions. The arrows indicate which system entity writes to each queue,
and which entity reads each queue.
These queues, placed on asynchronous communication paths, directly
Mindspeed Technologies
CN8237
Global OAM Free Buffer Queue
Free Buffer
Queues
2.2 High Performance Host Architecture with Buffer Isolation
Reassembly
Block
RSM/SEG Queue
Segmentation
™
Block
xBR
Scheduler
Local Memory
Interface (x2)
LEGEND:
2.0 Architecture Overview
Figure 2-3
Write
Transmit Queues
illustrates
Read
8237_016
2-5