gwixp425bdt Intel Corporation, gwixp425bdt Datasheet - Page 23
gwixp425bdt
Manufacturer Part Number
gwixp425bdt
Description
Intel Xp42x Product Line Of Network Processors And Ixc1100 Control Plane Processor
Manufacturer
Intel Corporation
Datasheet
1.GWIXP425BDT.pdf
(134 pages)
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2.1.4
2.1.5
2.1.6
2.1.7
Datasheet
UTOPIA 2
The integrated, UTOPIA-2 interface works with a network processing engine, for several of the
IXP42X product line and IXC1100 control plane processors. (See
The UTOPIA-2 interface supports a single- or a multiple-physical-interface configuration with
cell-level or octet-level handshaking. The network processing engine handles segmentation and
reassembly of ATM cells, CRC checking/generation, and transfer of data to/from memory. This
allows parallel processing of data traffic on the UTOPIA-2 interface, off-loading processor
overhead required by the Intel XScale
The IXP42X product line and IXC1100 control plane processors are compliant with the ATM
Forum, UTOPIA Level-2 Specification, Revision 1.0.
USB Interface
The integrated USB 1.1 interface is a device-only controller. The interface supports full-speed
operation and 16 endpoints and includes an integrated transceiver.
There are:
PCI Controller
The IXP42X product line and IXC1100 control plane processors’ PCI controller is compatible with
the PCI Local Bus Specification, Rev. 2.2. The PCI interface is 32-bit compatible bus and capable
of operating as either a host or an option (i.e., not the Host) For more information on PCI
Controller support and configuration see the Intel
and IXC1100 Control Plane Processor Developer’s Manual.
SDRAM Controller
The memory controller manages the interface to external SDRAM memory chips. The interface:
The memory controller only supports 32-bit memory. If a x16 memory chip is used, a minimum of
two memory chips would be required to facilitate the 32-bit interface required by the IXP42X
product line and IXC1100 control plane processors. A maximum of four SDRAM memory chips
may be attached to the processors. For more information on SDRAM support and configuration see
the Intel
Developer’s Manual.
The memory controller internally interfaces to the North AHB and South AHB with independent
interfaces. This architecture allows SDRAM transfers to be interleaved and pipelined to achieve
maximum possible efficiency.
•
•
•
•
•
•
•
Intel
Six isochronous endpoints (three input and three output)
One control endpoints
Three interrupt endpoints
Six bulk endpoints (three input and three output)
Operates at 133.32 MHz (which is 4 * OSC_IN input pin.)
Supports eight open pages simultaneously
Has two banks to support memory configurations from 8 Mbyte to 256 Mbyte
®
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
Document Number: 252479, Revision: 005
®
Core.
®
IXP42X Product Line of Network Processors
Table 4 on page
20.)
March 2005
23
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