Template:mpu
The CN3830-400 EXP is a 64-bit quad-core MIPS communication microprocessor designed by Cavium and introduced in 2005. This processor, which incorporates four cnMIPS cores, operates at 400 MHz. This processor includes a number of hardware networking accelerators including units for high-performance packet I/O processing, QoS, TCP, and RegEx. This MPU supports up to 16 GiB of DDR2-800 ECC memory.
Cache
- Main article: cnMIPS § Cache
[Edit/Modify Cache Info]
![hierarchy icon.svg](/w/images/thumb/e/e4/hierarchy_icon.svg/75px-hierarchy_icon.svg.png) |
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.
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L1$ | 160 KiB 163,840 B 0.156 MiB
| L1I$ | 128 KiB 131,072 B 0.125 MiB
| 4x32 KiB | 64-way set associative | |
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L1D$ | 32 KiB 32,768 B 0.0313 MiB
| 4x8 KiB | 64-way set associative | Write-through |
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| L2$ | 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB
| | | 1x1 MiB | 8-way set associative | |
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Memory controller
[Edit/Modify Memory Info]
![ram icons.svg](/w/images/thumb/a/af/ram_icons.svg/75px-ram_icons.svg.png) |
Integrated Memory Controller
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Max Type | DDR2-800 |
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Supports ECC | Yes |
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Max Mem | 16 GiB |
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Controllers | 1 |
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Channels | 1 |
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Width | 128 bit |
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Max Bandwidth | 11.92 GiB/s 12,206.08 MiB/s 12.799 GB/s 12,799.003 MB/s 0.0116 TiB/s 0.0128 TB/s
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Bandwidth |
Single 11.92 GiB/s
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Expansions
Networking
Hardware Accelerators
Block diagram
Datasheet