PXF4336 Datasheet, PDF (46/425 Pages) Infineon Technologies AG – ABM Premium ATM Buf fer Manager

3
Functional Description
ABM-P
PXF 4336 V1.1
Functional Description
3.1
Block Diagrams
Figure 3-1 shows a typical sub-system integration scenario using the ABM-P. The
memory configurations are examples and depend on the ABM-P operation modes and
required queueing resources.
Cell Pointer
RAM
.. .
512K*32
Upstream Cell
Storage RAM
. ..
...
4M*16
4M*16
UTOPIA L2
Interface
(PHY Side)
PXF 4336
ABM-P
UTOPIA L2
Interface
(Backplane Side)
Queue Congestion
Indication Interface
E EPROM
...
...
4M*16
4M*16
Downstream Cell
Storage RAM
•
Figure 3-1 Sub-System Integration Diagram
Figure 3-2 shows a functional block diagram of the ABM-P. The function blocks are
referenced and described in more detail in subsequent chapters.
Data Sheet
46
2001-12-17