pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 253
pxf4336
Manufacturer Part Number
pxf4336
Description
Abm Premium Atm Buf Fer Manager
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXF4336.pdf
(425 pages)
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Register 42 TCT3
CPU Accessibility:
Reset Value:
Offset Address:
Typical Usage:
Register WAR.Word64Sel(1:0) =’00’:
Bit
Bit
DH
(2:0)
Data Sheet
SCNT
15
7
TCT Transfer Register 3
DH(2:0)
CntLP
DBA
14
DeltaHysteresis for threshold evaluations with hysteresis applied:
This value is per traffic class, but is evaluated individually for each
effected threshold TH relative to the threshold size. The hysteresis
determines a lower threshold TL with
TL
The Delta
with:
Delta
The following table shows the operation and resulting TL
the example of a threshold programmed to 256 cells:
DH(2:0):
0d
1d
2d
6
Read/Write
0000
TCT3
Written and Read by CPU to maintain the TCT table;
the meaning of register TCT3 depends on the bit field
’Word64Sel’ in WAR;
i
:= TH
i
:= TH
H
GFRen
i
- Delta
13
i
5
value is determined by bit field DH(2:0) and TH
i
Delta
0
TH
TH
>> [DH(2:0) +1]
i
i
>>2
>>3
41
i
i
CLPtran
:=
unused
H
DBA
12
4
s
253
(hysteresis disabled)
ABRen
11
3
ABRVp
10
unused(3:0)
2
Register Description
EPDen
PXF 4336 V1.1
9
1
Example:
TL
TL
TL
i
i
i
i
:= 256
:= 192
:= 224
values for
2001-12-17
i
PPDen
ABM-P
8
0
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