CN8237EBGB Mindspeed Technologies, CN8237EBGB Datasheet - Page 147

• 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
5.7.4 Free Buffer Queues
Figure 5-18. Reassembly Master Control Word
28237-DSH-001-C
Table 5-15. Free Buffer Queue Base Table Entry Format
Word
0
1
2
3
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
Reserved
MSTR_CTRL
NOTE(S):
Control structures with only one double-word (64-bits) are transferred
as two 32-bit words, unless FORCE_64 is set.
DWORD
Value
0
1
The host initializes the free buffer queues in SAR RSM-shared memory, and
during reassembly processing, submits data buffers for reassembly to the free
buffer queues.
Tables 5-15
entries.
LENGTH
The free buffer queue base table is located in CN8237 internal memory.
63
63
Mindspeed Technologies
First Word
XXXX
and
UPDATE
Access
32
64-Bit
5-16
32
READ_UD_PNTR
31
31
First Word
READ_UD_PNTR (FBQ)
describe the format of the free buffer queue base table
XXXX
Reassembly
Reserved
0
0
Reserved
Reserved
31
31
™
First Word
First Word
XXXX
XXXX
5.7 Reassembly Control and Data Structures
Access
32-Bit
0
0
5.0 Reassembly Coprocessor
FORWARD
8237_160
READ
Reserved
5-39