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Difference between revisions of "cavium/octeon/cn3005-300bg350-cp"
< cavium‎ | octeon

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| model number        = CN3005-300 CP
 
| model number        = CN3005-300 CP
 
| part number        = CN3005-300BG350-CP
 
| part number        = CN3005-300BG350-CP
| part number 1      =
 
 
| part number 2      =  
 
| part number 2      =  
 
| part number 3      =  
 
| part number 3      =  
 +
| part number 4      =
 
| market              = Embedded
 
| market              = Embedded
 
| first announced    = January 30, 2006  
 
| first announced    = January 30, 2006  

Revision as of 17:48, 30 June 2017

Template:mpu The CN3005-300 CP is a 64-bit single-core MIPS communication microprocessor (CP) designed by Cavium and introduced in 2006. This processor, which incorporates a single cnMIPS core, operates at 300 MHz and dissipates 2 Watts. This processors includes a number of hardware communication accelerators including units for high-performance packet I/O processing, QoS, and TCP acceleration. This MPU supports up to 2 GiB of DDR2-533 memory.

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$24 KiB
24,576 B
0.0234 MiB
L1I$16 KiB
16,384 B
0.0156 MiB
1x16 KiB2-way set associative 
L1D$8 KiB
8,192 B
0.00781 MiB
1x8 KiB64-way set associativeWrite-through

L2$64 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
  1x64 KiB2-way set associative 

Memory controller

[Edit/Modify Memory Info]

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Integrated Memory Controller
Max TypeDDR2-533
Supports ECCNo
Max Mem2 GiB
Controllers1
Channels1
Width16 bit
Max Bandwidth1,017 MiB/s
0.993 GiB/s
1.066 GB/s
1,066.402 MB/s
9.698868e-4 TiB/s
0.00107 TB/s
Bandwidth
Single 1,017 MiB/s

Expansions

[Edit/Modify Expansions Info]

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Expansion Options
PCI
Width32 bit
Clock66.66 MHz
Rate254.31 MiB/s
Featureshost or slave
USB
Revision2.0
Ports1
Rate60 MB/s
Featureshost / PHY
UART
Ports2

GP I/OYes


Networking

[Edit/Modify Network Info]

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Networking
MII
GMIIYes (Ports: 1)
RGMIIYes (Ports: 1)

Hardware Accelerators

[Edit/Modify Accelerators Info]

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Hardware Accelerators
Networking
TCPYes
QoSYes

Block diagram

cn3005 block diagram.png

Datasheet

has ecc memory supportfalse +
has hardware accelerators for network quality of service processingtrue +
has hardware accelerators for tcp packet processingtrue +
l1$ size24 KiB (24,576 B, 0.0234 MiB) +
l1d$ description64-way set associative +
l1d$ size8 KiB (8,192 B, 0.00781 MiB) +
l1i$ description2-way set associative +
l1i$ size16 KiB (16,384 B, 0.0156 MiB) +
l2$ description2-way set associative +
l2$ size0.0625 MiB (64 KiB, 65,536 B, 6.103516e-5 GiB) +
max memory bandwidth0.993 GiB/s (1,017 MiB/s, 1.066 GB/s, 1,066.402 MB/s, 9.698868e-4 TiB/s, 0.00107 TB/s) +
max memory channels1 +
supported memory typeDDR2-533 +