pxb4330 Infineon Technologies Corporation, pxb4330 Datasheet - Page 16

• Manufacturer Part Number: pxb4330
• Description: Ics For Communications
• Manufacturer: Infineon Technologies Corporation

Data Sheet
1
The PXB 4330 ATM Buffer Manager (ABM) is a member of the Infineon ATM layer chip
set. The chip set consists of:
• PXB 4330 E ATM Buffer Manager ABM
• PXB 4340 E ATM OAM Processor AOP
• PXB 4350 E ATM Layer Processor ALP
• PXB 4360 F Content Addressable Memory Element CAME
These chips comprise a complete chip set with which to build an ATM switch. A generic
ATM switch consists of a switching fabric and switch ports as shown in Figure 1-1.
Figure 1-1
In the Infineon ATM layer chip set, the traffic management function is performed by the
PXB 4330 E ABM. Policing, header translation, and cell counting is performed by the
PXB 4350 E ALP; OAM functions by the PXB 4340 E AOP. The PXB 4360 F CAME can
be used optionally as an external Address Reduction Circuit (ARC) for the PXB 4350 E
ALP.
PHYs
UTOPIA
Overview
ATM Switch Basic Configuration
Conn. RAM = connection data RAM
Pol. RAM = policing data RAM
ARC = address reduction circuit
Cell RAM = ATM cell storage RAM
Conn.
RAM
PXB 4350 E
ALP
Pol.
RAM
Conn.
RAM
ARC
UTOPIA
PXB 4340 E
AOP
Conn.
RAM
Conn.
RAM
1-16
UTOPIA
Pointer
RAM
PXB 433 E
ABM
Cell
RAM
Cell
RAM
0
switch port
UTOPIA
PXB 4325 E
ASP
Proc.
SWF
Conn.
RAM
Pre-
Conn.
RAM
SLIF
PXB 4330
ATM
switching
fabric
consisting
of
PXB 4310 E
ASM
chips
Overview
SWF
09.99