cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 242
cn8236
Manufacturer Part Number
cn8236
Description
Atm Servicesar Plus With Xbr Traffic Management
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8236.pdf
(443 pages)
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7.0 OAM Functions
7.4 PM Processing
7.4.1 Initializing PM Operation
7-12
Table 7-5. PM-OAM Field Initialization For Any PM_INDEX
RSM_CTRL1
(Reassembly Control
Register 1)
SEG_PMBASE
(SEG PM Base Register)
Register / Table
these functions:
The user must initialize the fields described in
processing.
OAM_EN
OAM_QU_EN
OAM_BFR_QU
OAM_STAT_QU
SEG_PMB[15:0]
For any channel on which PM processing is enabled, the CN8236 performs
• The RSM coprocessor reassembles received PM-OAM cells in the global
• A reassembly status record is written to the global reassembly OAM status
• The RSM coprocessor performs the BIP-16 calculation on each received
• For each forward monitoring PM cell received, the RSM coprocessor
• The segmentation coprocessor automatically generates a forward
reassembly OAM buffer queue (OAM_BFR_QU).
queue for each received PM-OAM cell. The status entry for a forward
monitoring PM-OAM cell includes the Block Error Result (BIPV)
calculation, and both Total Received Cell Counts (TRCC0 and TRCC0+1).
The two Total User Cell number fields (TUC0 and TUC0+1) can be
extracted directly from the cell payload.
data cell in the defined PM block and writes this data to the RSM_PM
table entry set aside for that PM_INDEX.
writes an entry for a backward reporting PM cell in the RS_Queue,
causing the CN8236 to generate and transmit a backward reporting PM
cell.
monitoring PM cell at the end of each PM block. It gets the data for these
cells from the SEG_PM table entry for that PM_INDEX. This can be
optionally disabled by setting the FWD_MON field equal to 0.
Field
Mindspeed Technologies
Initialized Value
(User assigned)
(User assigned)
(User assigned)
0-1
0-1
ATM ServiceSAR Plus with xBR Traffic Management
™
Base address for SEG_PM table.
Table 7-5
before starting PM
Notes
28236-DSH-001-B
CN8236
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