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CN5750-900 SP - Cavium
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Template:mpu CN5750-900 SP is a 64-bit dodeca-core MIPS storage processor (SP) designed by Cavium and introduced in 2007. This processor, which incorporates twelve 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]

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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$576 KiB
0.563 MiB
589,824 B
5.493164e-4 GiB
L1I$384 KiB
0.375 MiB
393,216 B
3.662109e-4 GiB
12x32 KiB  
L1D$192 KiB
0.188 MiB
196,608 B
1.831055e-4 GiB
12x16 KiB  

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

Memory controller

[Edit/Modify Memory Info]

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Integrated Memory Controller
Max TypeDDR2-800
Supports ECCYes
Controllers1
Channels2
Width64 bit
Max Bandwidth11.92 GiB/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]

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Networking
MII
XAUIYes (Ports: 1)
SGMIIYes (Ports: 4)

Hardware Accelerators

[Edit/Modify Accelerators Info]

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Hardware Accelerators
Networking
TCPYes
QoSYes
Compression
CompressionYes
DecompressionYes
RAID
RAID 5Yes
RAID 6Yes

Block diagram

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Datasheet