CN8237EBGB Mindspeed Technologies, CN8237EBGB Datasheet - Page 278

• 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

13.0 ATM UTOPIA Interface
13.4 UTOPIA Level 2 Interface
13.4.1 Cell Tagging
13-6
In addition to the standard 53-octet cell formats, given in
the CN8237 supports user programmable cell sizes for Routing Tag applications.
This allows a maximum cell size of 64 bytes. These cell formats are shown in
Tables 13-7
programmed into the TAG_SIZE bits of CONFIG1.
Table 13-5. Cell Format 8-bit Mode
Table 13-6. Cell Format 16-bit Mode
Bit 15
Bit 7
UDF1 (HEC) (byte 5)
UDF1 (HEC) (byte 5)
Mindspeed Technologies
Payload 48
Payload 47
and 13-8. The number of octets added for the tagging function is
Payload 1
Payload 1
Header 1
Header 2
Header 3
Header 4
Header 1
Header 3
...
...
:
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
Bit 8 Bit 7
0
UDF2 (0) (byte 6)
™
Payload 48
Payload 2
Header 2
Header 4
...
Tables 13-5
0
28237-DSH-001-C
and 13-6,
CN8237