參數(shù)資料
型號： GCIXP1250-200
英文描述： Microprocessor
中文描述： 微處理器
文件頁數(shù)： 9/148頁
文件大?。?/td> 1601K
代理商： GCIXP1250-200
Intel
IXP1250 Network Processor
Datasheet
9
1.0
Product Description
The Intel
IXP1250 Network Processor is a highly integrated, hybrid data processor that delivers
high-performance parallel processing power and flexibility to a wide variety of networking,
communications, and other data-intensive products. The IXP1250 is designed specifically as a data
control element for applications that require access to a fast memory subsystem, a fast interface to
I/O devices such as network MAC devices, and processing power to perform efficient
manipulation on bits, bytes, words, and longword data.
The IXP1250 combines the popular StrongARM* microprocessor with six independent 32-bit
RISC data engines with hardware multithread support that combined, provide over
1 giga-operations per second. The Microengines contain the processing power to perform tasks
typically reserved for high speed ASICs. In LAN switching applications, the six Microengines are
capable of packet forwarding of over 3 million Ethernet packets per second at Layer 3. The
StrongARM* processor can then be used for more complex tasks such as address learning, building
and maintaining forwarding tables, and network management.
Figure 1. Silicon Block Diagram
A8542-01
Intel IXP1250 Network Processor
PCI Unit
Intel
StrongARM*
Core
SRAM Unit
SDRAM Unit
Scratchpad
Memory
(4 Kbyte)
FBI Unit
Hash Unit
IX Bus
Interface
512 Byte
Mini-Dcache
8 Kbyte
Dcache
16 Kbyte
Icache
Intel
StrongARM
SA-1 Core
Write Buffer
Read Buffer
Notes:
* Other brands and names are the property of their respective owners.
32-bit Data Bus
32-bit ARM System Bus
UART
GPIO
4 Timers
RTC
JTAG
Micro-
engine
4
Micro-
engine
5
Micro-
engine
6
Micro-
engine
1
Micro-
engine
2
Micro-
engine
3
32-bit bus
64-bit bus
32-bit bus
64-bit bus
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