RS8234 Mindspeed Technologies, RS8234 Datasheet - Page 154

• Manufacturer Part Number: RS8234
• Description: Atm Servicesar Plus With Xbr Traffic Management
• Manufacturer: Mindspeed Technologies

5.0 Reassembly Coprocessor
5.7 Reassembly Control and Status Structures
5.7.5 Reassembly Status Queues
Table 5-25. Reassembly Status Queue Base Table Entry Descriptions
5-50
Table 5-24. Reassembly Status Queue Base Table Entry Format
Table 5-26. Reassembly Status Queue Entry Format with FWD_PM = 0
BASE_PNTR
LOCAL
SIZE
WRITE
READ_UD
Word
Word
0
1
0
1
2
3
Field Name
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
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
Rsvd
SIZE Rsvd
Reserved
UU
Base pointer. Pointer to the base word address of the status queue.
If set high, queue is located in local memory, otherwise it is located in host memory.
Size of the status queue.
Current Write index pointer maintained by the SAR.
Periodic Read update index pointer maintained by the user.
01 = 256
10 = 1,024
11 = 4,096
00 = 64
The RS8234 reports reassembly status to the host on any one of 32 reassembly
status queues.
queues by initializing the reassembly status queue base table entries in RS8234
internal memory. The location and size of each RSM status queue is
independently programmable via these base table entries.
base table entries.
queue entries.
PDU_CHECKS
At initialization the host assigns the location and size of up to 32 RSM status
Table 5-24
Table 5-26
WRITE
Mindspeed Technologies
Reserved
and
through
CPI
Table 5-25
BASE_PNTR
BD_PNTR
Table 5-33
Description/Function
describe the format of the reassembly status queue
ATM ServiceSAR Plus with xBR Traffic Management
describe the formats of the reassembly status
Rsvd
STATUS
™
CPCS_LENGTH
VCC_INDEX
READ_UD
OAM
28234-DSH-001-B
STM
RS8234
“00”