CN8237EBGB Mindspeed Technologies, CN8237EBGB Datasheet - Page 215

• 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
7.1.3 OAM Cell Format
Figure 7-1. OAM Cell Format
28237-DSH-001-C
NOTE(S): EDC = Error Detection Code (10 bits). This is a CRC-10 error detection code computed over the
GFC
4 bits
4 bits
VPI
OAM cell information fields, excluding the EDC field.
12 bits
8 bits
8 bits
Cell Header
Figure 7-1
specific to OAM.
= Generated by the CN8237 for all OAM Cells.
= Generated by the CN8237 for PM OAM only.
2 octets
Header
5 octets
VCI
Mindspeed Technologies
illustrates the common OAM cell format and identifies the fields
OAM
Type
4 bits
3 bits
PTI
Function
4 bits
Type
1 bit
L
HEC
8 bits
OAM Cell Information Fields
Function Specific Fields
45 octets
™
F4 Flow (VP)
F5 Flow (VC)
VCI 3 = Segment
VCI 4 = End-to-end
PTI 100 = Segment
PTI 101 = End-to-end
(Rsvd)
6 bits
7.0 OAM Functions
7.1 OAM Overview
(CRC-10)
10 bits
EDC
8237_078
7-5