pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 63

• Manufacturer Part Number: pxf4336
• Description: Abm Premium Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

Figure 3-13 Connection Identifiers in Mini-Switch Configuration
For minimum complexity, the header translation of the ABM-P is done by inverting the
Least Significant Bit (LSB) of the LCI. This measure divides the available LCI range into
two parts: odd LCI values for forward connections and even LCI values for backward
connections (or vice-versa). That is, it reduces the available number of connection iden-
tifiers to 8192, because two LCI values are used per connection.
This is not a restriction in the case of arbitrary address reduction modes as, for example,
when the ALP chip is used with the CAME chip (PXB 4360), as ATM connections are
always set up bi-directionally with the same VPI/VCI in both directions of a link.
Refer to
and uni-directional mode, the enabling of the LCI toggling, as well as the deactivation of
the downstream core.
Note: In case of fixed address reduction, as, for example, when using the ALP with the
Data Sheet
Phy 1
Phy 2
built-in Address Reduction Circuit (ARC), the usable LCI range may be seriously
restricted, depending on the PHY configuration.
Register 126 "MODE1" on Page 373
VPI/VCI
VPI/VCI
2
1
PXB
4350
ALP
HT
HT
HT = Header Translation
LCI = Local Connection Identifier
LCI
LCI
LCI
LCI
1
1
2
2
4340
AOP
PXB
63
LCI
LCI
LCI
LCI
for the configuration of the bi-directional
1
1
2
2
ABM-P (uni-directional mode)
LCI+/-1
Functional Description
LCI=
Cores
PXF 4336 V1.1
2001-12-17
ABM-P