cn8237 Mindspeed Technologies, cn8237 Datasheet - Page 27
cn8237
Manufacturer Part Number
cn8237
Description
Atm Oc-12 Servicesar Plus With Xbr Traffic Management
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8237.pdf
(415 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
cn8237EBGB
Manufacturer:
CONX
Quantity:
260
Company:
Part Number:
cn8237EBGB
Manufacturer:
CONEXANT
Quantity:
246
Part Number:
cn8237EBGB
Manufacturer:
MINDSPEED
Quantity:
20 000
Part Number:
cn8237EBGB/28237G-12
Manufacturer:
MINDSPEED
Quantity:
20 000
- Current page: 27 of 415
- Download datasheet (5Mb)
28237-DSH-001-C
1.0 CN8237 Product Overview
1.1 Introduction
The CN8237 Service Segmentation and Reassembly Controller (ServiceSAR)
delivers, at OC-12 rates, a wide range of advanced ATM and AAL functions in a
single highly-integrated CMOS package. The CN8237 ServiceSAR also delivers
service-specific features that enable system designers to accelerate specific
protocol interworking functions. These features include:
Forum Traffic Management Specification, TM 4.1. The CN8237 provides
traffic-shaping for all service categories, including:
The internal xBR Traffic Manager automatically schedules each VCC according
to user-assigned parameters.
host manages the CN8237 terminal with an efficient architecture that uses
write-only control and status queues. For example, the host submits data for
transmit by writing buffer descriptor pointers to one of 32 transmit queues. These
entries form lists of tasks for the ServiceSAR to perform. The CN8237 reports
segmentation and reassembly status to the host by writing entries to segmentation
and reassembly status queues, which the host processes. This architecture lessens
the control burden on the host and minimizes Peripheral Component Interconnect
(PCI) bus utilization by eliminating host control activities across the PCI bus.
• Frame Relay Early Packet Discard (EPD)
• Generic Flow Control (GFC)
• Echo suppression of multicast data frames on Emulated LAN (ELAN)
The CN8237 meets the requirements of UNI 3.1 and complies with ATM
• Constant Bit Rate (CBR)
• Variable Bit Rate (VBR)—both single and dual leaky bucket
• Unspecified Bit Rate (UBR)
• Available Bit Rate (ABR)
• GFC—both controlled and uncontrolled flows
• Guaranteed Frame Rate (GFR), that is, guaranteed Minimum Cell Rate
The CN8237 architecture minimizes and controls host traffic congestion. The
(MCR) on UBR Virtual Channel Connections (VCCs)
Mindspeed Technologies
1
™
1-1
Related parts for cn8237
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Framer SDH ATM/POS/STM-1 SONET/STS-3 3.3V 272-Pin BGA
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
RS8234EBGC ATM XBR SAR
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
ATM SAR 155Mbps 3.3V ABR/CBR/GFR/UBR/VBR 388-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
ATM IMA 8.192Mbps 1.8V/3.3V 484-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
ATM SAR 622Mbps 3.3V ABR/CBR/GFR/UBR/VBR 456-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
RS8234EBGD ATM XBR SAR, ROHS
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
3-PORT T3/E3/STS-1 LIU WITH/ DJAT IC (ROHS)
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
ATM IMA 800Mbps 1.8V/3.3V 256-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Framer SDH ATM/POS/STM-1 SONET/STS-3 3.3V 272-Pin BGA
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet: