pxf4333 Infineon Technologies Corporation, pxf4333 Datasheet - Page 129
pxf4333
Manufacturer Part Number
pxf4333
Description
Abm 3g Atm Buf Fer Manager
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXF4333.pdf
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5.1.5
The polling scheme is based on a port priority list. A serviced port is automatically moved
to the end of the priority list. The priority list port sequence is based on incrementing
addresses; for a given address, the port numbers are in increasing order:
Table 5-2
Address
Sequence
Priority
Example
Assume Port 25 (printed bold in example pattern) is at the top of the priority list and gets
serviced. Now, the list top pointer is moved to the next entry which is Port 37 (i.e. Port
25 becomes the end of the list).
Note: Disabled or internally backpressured ports are deleted from the priority list.
Data Sheet
Polling operation of Receive and Transmit interfaces is independent of each other.
UTOPIA Master Mode Polling Scheme (PHY side)
Port Polling Sequence
0
0
decreasing
priority ->
12 24 36 1
1
13 25 37 2
129
decreasing priority ->
2
14 26 38 3
Interface Description
3
PXF 4333 V1.1
15 27 39 4
2001-12-17
ABM-3G
4
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