pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 103
pxf4336
Manufacturer Part Number
pxf4336
Description
Abm Premium Atm Buf Fer Manager
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXF4336.pdf
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Figure 3-39 ACR calculation at FRM Cell Send
3.5.1.3.2 User Cell and RM Cell Multiplexing
The parameters Nrm and Mrm, together with source rule #3 of the ATMF TM 4.1
specification [ 2 ], lead to the sequence of user and RM cells shown in
figure also explains the definition of in-rate and out-of-rate cells given
Table 3-40
Cell type
In-rate
Out-of-rate
When the current cell inter arrival time T is very small compared to Trm, the cell
sequence will be:
• One in-rate FRM cell
• Optionally, one in-rate BRM cell (if there is one to be turned around)
• 30 user cells (31 in case there is no BRM cell to be turned around)
Data Sheet
In-rate and Out-of-rate Cells
User cells
yes
not allowed
ACR = max(ACR, MCR)
FRM cell ready to send
T(Last FRM)> ADTF
CRM > CRMcnt
N
Y
End
FRM cells
yes
yes
ACR = ACR - ACR * CDF
CDF > 0
N
Y
103
BRM cells
yes
yes
Y
ACR > ICR
N
N
ACR = ICR
Y
CLP
0
1
Functional Description
Within ACR
yes
no
Figure
inTable
PXF 4336 V1.1
2001-12-17
3-41. This
3-40:
ABM-P
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