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CN5745-900 SP - Cavium
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Cavium CN5745-900 SP
Octeon CN57xx.svg
General Info
DesignerCavium
ManufacturerTSMC
Model NumberCN5745-900 SP
Part NumberCN5745-900BG1217-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
Cores10
Threads10
Multiprocessing
Max SMP1-Way (Uniprocessor)
Packaging
PackageFCBGA-1217 (BGA)
Dimension40 mm x 40 mm
Ball Count1217
InterconnectBGA-1217

CN5745-900 SP is a 64-bit deca-core MIPS storage processor (SP) designed by Cavium and introduced in 2007. This processor, which incorporates ten 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

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$480 KiB
491,520 B
0.469 MiB
L1I$320 KiB
327,680 B
0.313 MiB
10x32 KiB  
L1D$160 KiB
163,840 B
0.156 MiB
10x16 KiB  

L2$2 MiB
2,048 KiB
2,097,152 B
0.00195 GiB
  1x2 MiB  

Memory controller

[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/Modify Expansions Info]

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Expansion Options
PCIe
Revision1.0
Max Lanes8
Configsx4, x8
UART

GP I/OYes


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]

[Edit/Modify Network Info]

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

Hardware Accelerators

[Edit/Modify Accelerators Info]

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

Block diagram

cn57xx block diagram.png

Datasheet

Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
CN5745-900 SP - Cavium#package + and CN5745-900 SP - Cavium#io +
base frequency900 MHz (0.9 GHz, 900,000 kHz) +
core count10 +
designerCavium +
familyOCTEON Plus +
first announcedJune 26, 2007 +
first launchedAugust 2007 +
full page namecavium/octeon plus/cn5745-900bg1217-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$ size480 KiB (491,520 B, 0.469 MiB) +
l1d$ size160 KiB (163,840 B, 0.156 MiB) +
l1i$ size320 KiB (327,680 B, 0.313 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 numberCN5745-900 SP +
nameCavium CN5745-900 SP +
packageFCBGA-1217 +
part numberCN5745-900BG1217-SP +
process90 nm (0.09 μm, 9.0e-5 mm) +
seriesCN57xx +
smp max ways1 +
supported memory typeDDR2-800 +
technologyCMOS +
thread count10 +
word size64 bit (8 octets, 16 nibbles) +