cn8237 Mindspeed Technologies, cn8237 Datasheet - Page 208
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cn8237
Manufacturer Part Number
cn8237
Description
Atm Oc-12 Servicesar Plus With Xbr Traffic Management
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8237.pdf
(415 pages)
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6.0 Traffic Management
6.5 Traffic Management Control and Status Structures
6-52
Table 6-21. ABR SCH_STATE Field Descriptions (2 of 2)
RATE_INDEX
EB_INDEX
CRM
UNACK
S_NCR_LO_EXP
S_NCR_LO_MANT
NEXT_OOR
MCR_INDEX
ICR_INDEX
TA_ID
TA_DIR
TA_BN
TA_CI
TA_NI
TA_RA
D_NCR_DIR
TA_ER
TA_CCR
TA_MCR
FWD_ID
FWD_DIR
FWD_BN
FWD_CI
FWD_NI
FWD_RA
FWD_ER
S_NCR_HI_EXP
S_NCR_HI_MANT
FWD_MCR
Field Name
SCH_ABRB × 128 + 32 × RATE_INDEX.
SCH_ABRB × 128 + EB_INDEX × 128.
ER parameter.
Number of Forward RM cells transmitted since last Backward RM cell received. Initialize to 0.
Source ACR lower threshold, mantissa portion.
Next VCC index for linking out-of-rate RM cells.
Minimum Cell Rate decision block index. The rate decision block is located at byte address
SCH_ERB × 128 + 32 × MCR_INDEX.
Initial Cell Rate decision block index. The rate decision block is locate at byte address
SCH_ERB × 128 + 32 × ICR_INDEX.
ID field from most recent received Forward RM cell. This field is written by the SAR.
CI field for turnaround (Backward) RM cell. This field is written by the SAR.
NI field for turnaround (Backward) RM cell. This field is written by the SAR.
RA field from most recent received Forward RM cell. This field is written by the SAR.
Indicates direction of destination ACR trigger. 1 for HI, 0 for low.
ER field for turnaround (Backward) RM cell. This field is written by the SAR.
CCR field from most recent received Forward RM cell. This field is written by the SAR.
ID field for transmitted Forward RM cells. This field is supplied by the user.
DIR field for transmitted Forward RM cells. This field is supplied by the user.
BN field for transmitted Forward RM cells. This field is supplied by the user.
CI field for transmitted Forward RM cells. This field is supplied by the user.
NI field for transmitted Forward RM cells. This field is supplied by the user.
RA field for transmitted Forward RM cells. This field is supplied by the user.
ER field for transmitted Forward RM cells. This field is supplied by the user.
MCR field for transmitted Forward RM cells. This field is supplied by the user.
ER rate decision block index. The rate decision block is located at byte address
ER exponent table index for rate index block. The exponent table is located at byte address
Source ACR lower threshold, exponent portion.
DIR field for turnaround (Backward) RM cell. This field is written by the SAR.
BN field for turnaround (Backward) RM cell. This field is written by the SAR.
MCR field from most recent received Forward RM cell. This field is written by the SAR.
Source ACR upper threshold, exponent portion.
Source ACR upper threshold, mantissa portion.
Mindspeed Technologies
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
Description
™
28237-DSH-001-C
CN8237
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