PXB4330 Datasheet, PDF (16/201 Pages) Infineon Technologies AG – ICs for Communications

PXB 4330
Overview
1
Overview
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.
Conn.
RAM
UTOPIA
Pol.
RAM
ARC
UTOPIA
Conn.
RAM
UTOPIA
Pointer
RAM
Cell
RAM
UTOPIA
Conn.
RAM
SLIF
PHYs
PXB 4350 E
ALP
PXB 4340 E
AOP
PXB 4330 E
ABM
SWF
PX_PB _r4_e3_-25 E
AS_PP_roc.
ATM
switching
fab_Sri_Wc _F
consisting
of
PXB 4310 E
ASM
chips
Conn.
RAM
Conn.
RAM
Conn. RAM = connection data RAM
Pol. RAM = policing data RAM
ARC = address reduction circuit
Cell RAM = ATM cell storage RAM
Cell
RAM
Conn.
RAM
switch port
Figure 1-1 ATM Switch Basic Configuration
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.
Data Sheet
1-16
09.99