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{{cavium title|CN5740-900 SP}}
 
{{cavium title|CN5740-900 SP}}
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{{mpu
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{{chip
 
| name                = Cavium CN5740-900 SP
 
| name                = Cavium CN5740-900 SP
 
| no image            =  
 
| no image            =  
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| model number        = CN5740-900 SP
 
| model number        = CN5740-900 SP
 
| part number        = CN5740-900BG1217-SP
 
| part number        = CN5740-900BG1217-SP
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| part number 1      =
 
 
| part number 2      =  
 
| part number 2      =  
 
| part number 3      =  
 
| part number 3      =  
 +
| part number 4      =
 
| market              = Storage
 
| market              = Storage
 
| first announced    = Jun 26, 2007
 
| first announced    = Jun 26, 2007
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| tambient max        =  
 
| tambient max        =  
  
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| packaging          = Yes
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|package module 1={{packages/cavium/fcbga-1217}}
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| package 0          = FCBGA-1217
 
−
| package 0 type      = FCBGA
 
−
| package 0 pins      = 1217
 
−
| package 0 pitch    =  
 
−
| package 0 width    = 40 mm
 
−
| package 0 length    = 40 mm
 
−
| package 0 height    =
 
−
| socket 0            = BGA-1217
 
−
| socket 0 type      = BGA
 
 
}}
 
}}
 
'''CN5740-900 SP''' is a {{arch|64}} [[octa-core]] [[MIPS]] storage processor (SP) designed by [[Cavium]] and introduced in [[2007]]. This processor, which incorporates eight {{cavium|cnMIPS|l=arch}} cores, operates at 900 MHz and supports up to DDR2-800 dual channel ECC memory. This MPU includes a number of hardware accelerators specifically for improving the performance of storage and network software such as [[RAID]], networking, TCP & [[QoS]] acceleration.
 
'''CN5740-900 SP''' is a {{arch|64}} [[octa-core]] [[MIPS]] storage processor (SP) designed by [[Cavium]] and introduced in [[2007]]. This processor, which incorporates eight {{cavium|cnMIPS|l=arch}} cores, operates at 900 MHz and supports up to DDR2-800 dual channel ECC memory. This MPU includes a number of hardware accelerators specifically for improving the performance of storage and network software such as [[RAID]], networking, TCP & [[QoS]] acceleration.
 +
 +
== Cache ==
 +
{{main|cavium/microarchitectures/cnmips#Memory_Hierarchy|l1=cnMIPS § Cache}}
 +
{{cache size
 +
|l1 cache=384 KiB
 +
|l1i cache=256 KiB
 +
|l1i break=8x32 KiB
 +
|l1d cache=128 KiB
 +
|l1d break=8x16 KiB
 +
|l2 cache=2 MiB
 +
|l2 break=1x2 MiB
 +
}}
 +
 +
== Memory controller ==
 +
{{memory controller
 +
|type=DDR2-800
 +
|ecc=Yes
 +
|max mem=
 +
|controllers=1
 +
|channels=2
 +
|width=64 bit
 +
|max bandwidth=11.92 GiB/s
 +
|bandwidth schan=5.96 GiB/s
 +
|bandwidth dchan=11.92 GiB/s
 +
}}
 +
 +
== Expansions ==
 +
{{expansions
 +
|pcie revision=1.0
 +
|pcie lanes=8
 +
|pcie config=x4
 +
|pcie config 2=x8
 +
|uart=yes
 +
|gp io=Yes
 +
}}
 +
 +
== Networking ==
 +
Interface options:
 +
* 8-lanes [[PCIe]] + 8-lanes PCIe
 +
* 8-lanes PCIe + 4 lanes PCIe + 4x [SGMII OR XAUI]
 +
* 2x [4-lanes PCIe] + 2x [4x SGMII OR XAUI]
 +
{{network
 +
|mii opts=Yes
 +
|sgmii=yes
 +
|sgmii ports=4
 +
|xaui=1
 +
|xaui ports=1
 +
}}
 +
 +
== Hardware Accelerators ==
 +
{{accelerators
 +
|compression=Yes
 +
|decompression=Yes
 +
|tcp=Yes
 +
|qos=Yes
 +
|raid=Yes
 +
|raid5=Yes
 +
|raid6=Yes
 +
}}
 +
 +
== Block diagram ==
 +
[[File:cn57xx block diagram.png|750px]]
 +
 +
== Datasheet ==
 +
* [[:File:CN57XX PB Rev 1.2.pdf|OCTEON CN57XX Processors Product Brief]]

Latest revision as of 15:12, 13 December 2017

Edit Values
Cavium CN5740-900 SP
Octeon CN57xx.svg
General Info
DesignerCavium
ManufacturerTSMC
Model NumberCN5740-900 SP
Part NumberCN5740-900BG1217-SP
MarketStorage
IntroductionJun 26, 2007 (announced)
August, 2007 (launched)
General Specs
FamilyOCTEON Plus
SeriesCN57xx
Frequency900 MHz
Microarchitecture
ISAMIPS64 (MIPS)
MicroarchitecturecnMIPS
Process90 nm
TechnologyCMOS
Word Size64 bit
Cores8
Threads8
Multiprocessing
Max SMP1-Way (Uniprocessor)
Packaging
PackageFCBGA-1217 (BGA)
Dimension40 mm x 40 mm
Ball Count1217
InterconnectBGA-1217

CN5740-900 SP is a 64-bit octa-core MIPS storage processor (SP) designed by Cavium and introduced in 2007. This processor, which incorporates eight cnMIPS cores, operates at 900 MHz and supports up to DDR2-800 dual channel ECC memory. This MPU includes a number of hardware accelerators specifically for improving the performance of storage and network software such as RAID, networking, TCP & QoS acceleration.

Cache[edit]

Main article: cnMIPS § Cache

[Edit/Modify Cache Info]

hierarchy icon.svg
Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.
L1$384 KiB
393,216 B
0.375 MiB
L1I$256 KiB
262,144 B
0.25 MiB
8x32 KiB  
L1D$128 KiB
131,072 B
0.125 MiB
8x16 KiB  
L2$2 MiB
2,048 KiB
2,097,152 B
0.00195 GiB
  1x2 MiB  

Memory controller[edit]

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR2-800
Supports ECCYes
Controllers1
Channels2
Width64 bit
Max Bandwidth11.92 GiB/s
12,206.08 MiB/s
12.799 GB/s
12,799.003 MB/s
0.0116 TiB/s
0.0128 TB/s
Bandwidth
Single 5.96 GiB/s
Double 11.92 GiB/s

Expansions[edit]

[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
PCIe
Revision1.0
Max Lanes8
Configsx4, x8
UART
GP I/OYes


Networking[edit]

Interface options:

  • 8-lanes PCIe + 8-lanes PCIe
  • 8-lanes PCIe + 4 lanes PCIe + 4x [SGMII OR XAUI]
  • 2x [4-lanes PCIe] + 2x [4x SGMII OR XAUI]

[Edit/Modify Network Info]

ethernet plug icon.svg
Networking
MII
XAUIYes (Ports: 1)
SGMIIYes (Ports: 4)

Hardware Accelerators[edit]

[Edit/Modify Accelerators Info]

hardware accel icon.svg
Hardware Accelerators
Networking
TCPYes
QoSYes
Compression
CompressionYes
DecompressionYes
RAID
RAID 5Yes
RAID 6Yes

Block diagram[edit]

cn57xx block diagram.png

Datasheet[edit]

Retrieved from "https://en.wikichip.org/w/index.php?title=cavium/octeon_plus/cn5740-900bg1217-sp&oldid=70265"
Facts about "CN5740-900 SP - Cavium"
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"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
CN5740-900 SP - Cavium#package + and CN5740-900 SP - Cavium#io +
base frequency900 MHz (0.9 GHz, 900,000 kHz) +
core count8 +
designerCavium +
familyOCTEON Plus +
first announcedJune 26, 2007 +
first launchedAugust 2007 +
full page namecavium/octeon plus/cn5740-900bg1217-sp +
has ecc memory supporttrue +
has hardware accelerators for data compressiontrue +
has hardware accelerators for data decompressiontrue +
has hardware accelerators for network quality of service processingtrue +
has hardware accelerators for tcp packet processingtrue +
has hardware raid 5 supporttrue +
has hardware raid 6 supporttrue +
instance ofmicroprocessor +
isaMIPS64 +
isa familyMIPS +
l1$ size384 KiB (393,216 B, 0.375 MiB) +
l1d$ size128 KiB (131,072 B, 0.125 MiB) +
l1i$ size256 KiB (262,144 B, 0.25 MiB) +
l2$ size2 MiB (2,048 KiB, 2,097,152 B, 0.00195 GiB) +
ldateAugust 2007 +
main imageFile:Octeon CN57xx.svg +
manufacturerTSMC +
market segmentStorage +
max cpu count1 +
max memory bandwidth11.92 GiB/s (12,206.08 MiB/s, 12.799 GB/s, 12,799.003 MB/s, 0.0116 TiB/s, 0.0128 TB/s) +
max memory channels2 +
max pcie lanes8 +
microarchitecturecnMIPS +
model numberCN5740-900 SP +
nameCavium CN5740-900 SP +
packageFCBGA-1217 +
part numberCN5740-900BG1217-SP +
process90 nm (0.09 μm, 9.0e-5 mm) +
seriesCN57xx +
smp max ways1 +
supported memory typeDDR2-800 +
technologyCMOS +
thread count8 +
word size64 bit (8 octets, 16 nibbles) +