cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 156
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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Table 5-14. AAL3/4 Head VCC Table Entry Format
5.0 Reassembly Coprocessor
5.7 Reassembly Control and Data Structures
5-46
Table 5-15. AAL3/4 Head VCC Table Descriptions (1 of 3)
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
10
11
VC_EN
AAL_TYPE
FF_DSC
PM_INDEX
AAL_EN
TO_LAST
TO_EN
MID0
0
1
2
3
4
5
6
7
8
9
5.7.2.2 AAL3/4 Head
Field Name
Rsvd
VCC Table Entry
D_NCR_HI_EXP
Reserved
Reserved
MID_BITS
Enables the VCC table entry. If disabled, the cell is discarded.
When VC_EN is a logic high, configure channel to process specific AAL as listed below; otherwise,
when VC_EN is a logic low, a value of 11 causes the CELL_DSC_CNT counter not to be incremented.
00 = AAL5
01 = AAL0
10 = AAL3/4
11 = Reserved
FIFO buffer Full Discard. When a logic high and RSM_CTRL1(OAM_QU_EN) is a logic low, OAM cells
are discarded when the incoming DMA FIFO buffer is almost full.
Pointer to a PM-OAM processing word. Index with reference to top of VPI Index table. Used by the
OAM cells detected on AAL3/4 channels.
Same as AAL_EN field in standard RSM VCC entry. Used by OAM cells detected on AAL3/4 channels.
Indicates the last entry in the VCC table in which time-out processing occurs.
Enable time-out process of the VCC entry. Must be set to a logic 0.
When logic high, allow a MID value of 0; otherwise, 0 is invalid.
SEG_VCC_INDEX
Reserved
BOM_SSM_ERR
CRC10_ERR
Reserved
Reserved
LI_ERR
Table 5-14
AAL3/4 Head VCC table field definitions.
CONG_ID
D_NCR_HI_MANT
Mindspeed Technologies
ERS_INDEX
shows the AAL3/4 Head VCC table structure.
Reserved
Reserved
Description/Function
Rsvd
ATM ServiceSAR Plus with xBR Traffic Management
PM_INDEX
D_NCR_LO_EXP
STAT
Reserved
™
RX_COUNTER/VPC_INDEX
VCC_INDEX_BASE
EXP_TA_ER
EOM_ERR
MID_ERR
Reserved
SN_ERR
BFR1
Table 5-15
D_NCR_LO_MANT
AAL_EN
28236-DSH-001-B
ABR_CTRL
details the
BFR0
CN8236
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