pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 161
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 5-3
Figure 5-4
Head of Line Blocking Avoidance
The internal Cell Handler Unit forwards cells to UTOPIA port-specific queues. In case of
a filled queue, queue-specific backpressure is signalled to all schedulers that are
associated to that queue/port prohibiting further cell emits. Thus no HOL blocking can
occur.
Data Sheet
64 Cells Buffer Pool:
Logical Queues per
UTOPIA port
64 Cells Buffer Pool:
Logical Queues per
UTOPIA port
Queue Specific
Backpressure
Queue Specific
Backpressure
Scheduler Block
UTOPIA Transmit Downstream Master Mode
UTOPIA Transmit Downstream Slave Mode
Scheduler Block
161
UTXDATD(15:0)
UTXSOCD
UTXPRTYD
UTXCLKD
UTXADRD(4:0)
UTXENBD(3:0)
UTXCLAVD(3:0)
UTXDATD(15:0)
UTXSOCD
UTXPRTYD
UTXCLKD
UTXADRD(4:0)
UTXENBD(3:0)
UTXCLAVD(3:0)
Responding to
a) up to 4*12 addresses
b) up to 1*31 addresses
(UTXENBD(0), UTXCLAVD(0) only)
Interface Description
Addressing up to
4*12 PHYs:
Address
PHY 0
PXF 4336 V1.1
0..11
Address
PHY 1
0..11
Address
PHY 2
0..11
2001-12-17
Address
PHY 3
ABM-P
0..11
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