pxf4333 Infineon Technologies Corporation, pxf4333 Datasheet - Page 218
pxf4333
Manufacturer Part Number
pxf4333
Description
Abm 3g Atm Buf Fer Manager
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXF4333.pdf
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MGID(6:0)
MinBG(7:0)
Data Sheet
0
1
Merge Group Number (0..127)
Assigns the queue to one of 128 merge groups of this core.
Minimum Buffer Guarantee
This bit field determines a minimum buffer reservation for this
particular queue. The sum of all minimum buffer reservations
virtually divides the total buffer into a ’Guaranteed’ part and a
shared ’Non-Guaranteed’ part.
The minimum buffer reservation offers to granularities depending
on MSB of MinBG(7):
MinBG(7)
:= 0
MinBG(7)
:= 1
The queue is activated as a ’dummy queue’, but no first
dummy schedule event has occurred.
The queue is activated as a ’dummy queue’ and at least
one first dummy schedule event has occurred.
Note: ’RSall’ can be reset anytime while the queue is
Granularity of 1 cell for short queues (e.g. real-time
queues):
The minimum reserved buffer in number of cells is
reserved_buffer = MinBG(6:0) = {0,1,2,..127}
Granularity of 8 cells for long queues (e.g. non-real-time
queues):
The minimum reserved buffer in number of cells is
reserved_buffer = MinBG(6:0) << 3 = {0,8,16,..1016}
enabled. In response to resetting ’RSall’ the
ABM-3G will generate an interrupt (Bit ’UDQRD/
DDQRD’ in Register 103: ISRC) and reset bit
’MGconf/DQsch’ in this table.
218
Register Description
PXF 4333 V1.1
2001-12-17
ABM-3G
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