Avila Network Computer Operating Manual
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1.4. Functional
Blocks
The functional block diagram for the GW2345 network processor is shown below
followed by a detailed description of each major functional block. The network
processor includes several options that are specified at the time of ordering.
Options include the processor type, amount of system memory, amount of Flash
memory, and number of Mini-PCI sockets.
5 PORT 10/100
QoS SWITCH
SDRAM
32-128Mbytes
MINI-PCI
SOCKET
MINI-PCI
SOCKET
JTAG
DC/DC
CONVERTER
6-28V INPUT
POWER
STATUS LED
PROCESSOR
533MHZ
XSCALE
FLASH
16-32Mbytes
MINI-PCI
SOCKET
MINI-PCI
SOCKET
RS232
DIO
COMPACT
FLASH
SOCKET
EEPROM
REAL TIME CLOCK
SYSTEM MONITOR
Functional Block Diagram
Processor
The GW2345 supports the Intel
®
IXP420, IXP422 and IXP425 processors. The
primary difference between these processors is support for encryption and
operating speed. Both the IXP420 and the IXP422 operate at 266MHz while the
IXP425 operates at 533MHz. The IXP420 does not include hardware support for
AES, DES, DES3 Encryption and Authentication while both the IXP422 and
IXP425 does. The features common to both processors are listed below.
