pxf4333 Infineon Technologies Corporation, pxf4333 Datasheet - Page 107

• Manufacturer Part Number: pxf4333
• Description: Abm 3g Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

First, a dimensionless floating point number T
with T
Therefore T
Given a particular T
The integer division factor is calculated as:
The fractional division factor is calculated as:
with
greater or equal to X.
The integer and fractional division factor defined above are referred to as IntRate and
FracRate in the register description. Refer to
“USCTFT/DSCTFT” on Page
The minimum cell rate possible in an SB is configured with T
The following
SYSCLK.
Table 4-2
SYSCLK
[MHz]
51.84
60
In
different desired CCR
Data Sheet
Table
SB
X
constrained internally to
4-3, the numerical values of the integer and fractional divisors are shown for
T
T
T
T
MCR
designating the integer part of X and
SBmax
SB f ( )
SB
SB
SB i ( )
Table 4-2
Scheduler Block Rate Limits
≤
=
SB
Cell cycle
[ns]
617
533
= 16383,99609.
2
=
=
-------------------------------- -
32
14
SB
SYSCLK
min
=
–
SB
, the internal parameters for the SB rate can be calculated:
× CR
T
-------------------------------- -
32
----- -
2
SB
. Due to the limited resolution of the internal rate representation,
C
1
shows the rate limits for the SB as a function of the system clock
SYSCLK
8
(
×
á
T
T
SB
SBmax
SB
269.
–
PCR
[cells/s]
1556000
1811000
T
SB
SB
ñ
107
×
2
SB
8
is calculated from CCR
,
MCR
[cells/s]
255
“USCTI/DSCTI” on Page 260
X
)
SB
114.4409 48523
designating the next integer
98.8769 41924
Operational Description
SBmax
according to:
MBR
[bit/s] (53)
PXF 4333 V1.1
SB
SB
as follows:
2001-12-17
ABM-3G
and
(5)
(6)
(7)
(8)
(9)