RS8234 Mindspeed Technologies, RS8234 Datasheet - Page 203

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

Table 6-16. Bucket Table Entry Field Descriptions
RS8234
ATM ServiceSAR Plus with xBR Traffic Management
6.5.4 GFR-Specific Structures
28234-DSH-001-B
Table 6-17. SCH_STATE for SCH_MODE = GFR
Table 6-18. SCH_STATE Field Descriptions for SCH_MODE = GFR
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
L2_EXP
L2_MAN
I2_EXP
I2_MAN
MCRLIM_IDX
L1_EXP
L1_MAN
I1_EXP
I1_MAN
6.5.4.1 GFR Schedule
7
8
9
Field Name
Field Name
MCRLIM_IDX
MCRLIM_IDX
(MSB)
(LSB)
Rsvd
State Table
GCRA L parameter exponent for bucket 2.
L2_EXP must satisfy
L2_EXP that does not satisfy
GCRA L parameter mantissa for bucket 2.
Bucket 2 L value is:
GCRA I parameter exponent for bucket 2.
I2_EXP must satisfy
GCRA I parameter mantissa for bucket 2.
Bucket 2 I value is:
Index into table of 256 MCR LIMIT values each specifying an increase in the VCC’s priority by one if the
VCC’s rate falls below MCR. The table base is located on top of the BUCKET2 table whose base is given
by SEG_BCKB register field. The BUCKET2 table is 1KB in length. Table values are in the form of a
non-zero bit, exponent, and mantissa such that MCR_LIMIT is:
GCRA L parameter exponent for MCR bucket.
L1_EXP must satisfy:
LI_EXP that does not satisfy
GCRA L parameter mantissa for MCR bucket
Bucket 1 L value is:
GCRA I parameter exponent for MCR bucket.
I1_EXP must satisfy
GCRA I parameter mantissa for MCR bucket.
Bucket 1 I value is:
L1_EXP
MCR_LIM_NZ * 2
Table 6-17
2
2
Mindspeed Technologies
10 <= I2_EXP <= 25.
Reserved
10 <= I2_EXP <= 25
(I1_EXP - 10)
L2_EXP <= min(I2_EXP + 9,29).
2
2
(I2_EXP - 10)
(L2_EXP - 10)
(L1_EXP - 10)
and
L1_EXP
(MCR_LIM_EXP-10)
Table 6-18
L2_EXP >= I2_EX - 9
L1_EXP I1_EXP 9
L1_MAN
(1+I1_MAN/512)
(1+I2_MAN/512).
(1+L2_MAN/512).
(1+L1_MAN/512)
min I1_EXP
detail the SCH_STATE structure for GFR traffic.
(
(1+MCR_LIM_MAN/512)
Description
Description
Reserved
6.5 Traffic Management Control and Status Structures
+ 29
–
will have an effective L2 value of zero.
9
, )
Reserved
will have effective L1 value of zero.
™
I1_EXP
6.0 Traffic Management
Reserved
I1_MAN
6-43