PXF4333V11 INFINEON [Infineon Technologies AG], PXF4333V11 Datasheet - Page 67

• Manufacturer Part Number: PXF4333V11
• Description: ABM 3G ATM Buf fer Manager
• Manufacturer: INFINEON [Infineon Technologies AG]

Table 3-17
1)
Note: The flags in columns “TCT3 enabling flags” indicate the traffic class settings
Note: The thresholds and counters shown above are available in both the upstream and
3.4.1.6
Each arriving cell is classified by determination of its QID, SBID, and TCID.
The discard mechanisms available in the ABM-3G Buffer Manager are based on
occupancy counters and the programmable thresholds described in
and
3.4.1.6.1 Maximum Fill Discard
A maximum fill discard occurs if the cell counter exceeds the related maximum fill
threshold at cell arrival.
Data Sheet
Not a true PPD threshold because the last cell of the packet is also discarded when BufMaxNg is exceeded.
Fixed
TCT1
TCT0
QCT2
Chapter
required to make the threshold effective during cell acceptance algorithm for a cell
(connection) determined to belong to that traffic class. An ‘x’ means don’t care, i.e.
the flag has no effect on the threshold. The same applies to flag “CLPT” which is
a connection specific setting in the LCI table. The column “affected cells” indicates
whether the threshold affects CLP0, CLP1 or all cells.
the downstream ABM-3G core. In case of registers, the variable name is prefixed
with U for upstream and D for downstream in the register tables of
Discard Mechanisms and Buffer Reservation
Threshold
QueueLimit
(16383)
QueueMax
QueueCiCLP1
MinBG
3.4.1.4.
Threshold and Counter Table
Related
Occupancy
Counter
QueueLength
QueueLength
QueueLength
QueueLength
67
Threshold Type
Maximum
PPD
Maximum
PPD
EPD
GFR
CLP1
PPD
EPD
Reservation
1, 8 x
64 0
64 0
64 1
64 1
Functional Description
1 x
1 x
4 0
4 0
4 1
Enabling
Flags
TCT3
x
1
x
1
x
x
x
1
x
x
PXF 4333 V1.1
Chapter 3.4.1.3
x
x
x
x
x
1
x
x
x
x
Chapter
n
n
y
n
n
n
n
n
n
n
2001-12-17
ABM-3G
x
x
x
x
x
x
0
x
1
x
x
x
x
x
x
x
x
x
x
x
7.
0/1
0/1
0/1
0/1
0/1
0/1
1
1
1
0/1