CN8236EBGB Mindspeed Technologies, CN8236EBGB Datasheet - Page 92

• 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

4.0 Segmentation Coprocessor
4.3 Segmentation Control and Data Structures
4.3.1 Segmentation VCC Table Entry
4-14
Table 4-5. Segmentation VCC Table Entry—AAL3/4-AAL5-AAL0 Format
7-9/19
NOTE(S):
(1)
(2)
Word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
4
4
0
1
2
3
5
6
(1)
(2)
This word is used in AAL5 and AAL0 VCCs.
This word is used in AAL3/4 VCCs.
HPORT_ID
PM_INDEX
STAT/
Reserved
UU
PDU_LEN
4.3 Segmentation Control and Data Structures
Each Segmentation VCC table entry occupies one 10-word descriptor of the
Segmentation VCC table. The first 7 words are generic, independent of traffic
class. The last 3 or 13 words provide additional parameters specific to service
classes.
AAL3/4-AAL5-AAL0 and Virtual FIFO buffer. Each format completely
describes the state of the segmentation process for individual VCCs.
and
entries.
There are two basic formats for the generic part of the VCC table entry:
KEY:
PORT_ID
Table 4-6
Mindspeed Technologies
BETAG
describe the format of AAL3/4, AAL5, and AAL0 VCC table
= Written by host at VCC setup
= May be dynamically modified during active segmentation
ATM_HEADER
SCH_STATE
CRC_REM
Rsvd
ATM ServiceSAR Plus with xBR Traffic Management
™
SN
CURR_PNTR
LAST_PNTR
BOM_PNTR
BUFFER_LEN
NEXT_VCC
28236-DSH-001-B
MID
Table 4-5
CN8236