CN8236EBGB Mindspeed Technologies, CN8236EBGB Datasheet - Page 70

• 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

3.0 Host Interface
3.2 Multiple Client Architecture
Figure 3-1. Client/Server Model of the CN8236
3.2.1 Logical Clients
3-2
Motherboard
PCI Cards
PCI
(Up to 32
Physical
Physical
Logical
Clients)
Logical
Client
Client
Client
Client
3.2 Multiple Client Architecture
The CN8236 provides multiple independent control and status communication
paths. Each communication path, or flow, consists of a control queue and a status
queue for both segmentation and reassembly. The host assigns each of these
independent flows to system clients, or peers. As throughput requirements
escalate, the host system can add processing power in the form of additional
peers. This degree of freedom creates a scalable host environment. The CN8236
provides an ATM server for up to 32 clients.
client/server relationship.
As shown in
peers. The host can also assign control and status queues to system software tasks,
or logical clients. Since the queues offer individually distinct communication
paths, each logical client interfaces to the CN8236 independently. Due to its
server architecture, the CN8236 supplies the synchronization between
asynchronous tasks requiring ATM services.
Mindspeed Technologies
Figure
3-1, the clients do not need to be physically distinct PCI
ATM ServiceSAR Plus with xBR Traffic Management
LEGEND:
CN8236 Subsystem
Interface
™
PCI
Figure 3-1
ATM Server
Host Data Path
Host Control/Status Flow
illustrates this
28236-DSH-001-B
ATM
User-Network
Interface
CN8236
8236_010