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Difference between revisions of "cavium/octeon/cn3120-550bg868-exp"
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The '''CN3120-550 EXP''' is a {{arch|64}} [[dual-core]] [[MIPS]] communication [[microprocessor]] designed by [[Cavium]] and introduced in [[2006]]. This processor, which incorporates two {{cavium|cnMIPS|l=arch}} cores, operates at 550 MHz and dissipates 7 Watts. This processor includes a number of hardware accelerators for network processing such as [[compression]] & decompression, [[RegEx]] engine, [[TCP]], and [[QoS]]. This MPU supports up to 4 GiB of 64-bit DDR2-667 ECC memory.
 
The '''CN3120-550 EXP''' is a {{arch|64}} [[dual-core]] [[MIPS]] communication [[microprocessor]] designed by [[Cavium]] and introduced in [[2006]]. This processor, which incorporates two {{cavium|cnMIPS|l=arch}} cores, operates at 550 MHz and dissipates 7 Watts. This processor includes a number of hardware accelerators for network processing such as [[compression]] & decompression, [[RegEx]] engine, [[TCP]], and [[QoS]]. This MPU supports up to 4 GiB of 64-bit DDR2-667 ECC memory.
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== Cache ==
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{{main|cavium/microarchitectures/cnmips#Memory_Hierarchy|l1=cnMIPS § Cache}}
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{{cache size
 +
|l1 cache=80 KiB
 +
|l1i cache=64 KiB
 +
|l1i break=2x32 KiB
 +
|l1i desc=4-way set associative
 +
|l1d cache=16 KiB
 +
|l1d break=2x8 KiB
 +
|l1d desc=64-way set associative
 +
|l1d policy=Write-through
 +
|l2 cache=256 KiB
 +
|l2 break=1x128 KiB
 +
|l2 desc=8-way set associative
 +
}}

Revision as of 03:42, 9 December 2016

Template:mpu The CN3120-550 EXP is a 64-bit dual-core MIPS communication microprocessor designed by Cavium and introduced in 2006. This processor, which incorporates two cnMIPS cores, operates at 550 MHz and dissipates 7 Watts. This processor includes a number of hardware accelerators for network processing such as compression & decompression, RegEx engine, TCP, and QoS. This MPU supports up to 4 GiB of 64-bit DDR2-667 ECC memory.

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$80 KiB
81,920 B
0.0781 MiB
L1I$64 KiB
65,536 B
0.0625 MiB
2x32 KiB4-way set associative 
L1D$16 KiB
16,384 B
0.0156 MiB
2x8 KiB64-way set associativeWrite-through
L2$256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
  1x128 KiB8-way set associative 
Retrieved from "https://en.wikichip.org/w/index.php?title=cavium/octeon/cn3120-550bg868-exp&oldid=30925"
Facts about "CN3120-550 EXP - Cavium"
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CN3120-550 EXP - Cavium#package +
base frequency550 MHz (0.55 GHz, 550,000 kHz) +
core count2 +
core namecnMIPS +
designerCavium +
familyOCTEON +
first announcedJanuary 30, 2006 +
first launchedMay 1, 2006 +
full page namecavium/octeon/cn3120-550bg868-exp +
has ecc memory supporttrue +
has hardware accelerators for data compressiontrue +
has hardware accelerators for data decompressiontrue +
has hardware accelerators for network quality of service processingtrue +
has hardware accelerators for regular expressiontrue +
has hardware accelerators for tcp packet processingtrue +
instance ofmicroprocessor +
isaMIPS64 +
isa familyMIPS +
l1$ size80 KiB (81,920 B, 0.0781 MiB) +
l1d$ description64-way set associative +
l1d$ size16 KiB (16,384 B, 0.0156 MiB) +
l1i$ description4-way set associative +
l1i$ size64 KiB (65,536 B, 0.0625 MiB) +
l2$ description8-way set associative +
l2$ size0.25 MiB (256 KiB, 262,144 B, 2.441406e-4 GiB) +
ldateMay 1, 2006 +
main imageFile:octeon cn31xx.png +
manufacturerTSMC +
market segmentEmbedded +
max cpu count1 +
max memory4,096 MiB (4,194,304 KiB, 4,294,967,296 B, 4 GiB, 0.00391 TiB) +
max memory bandwidth4.97 GiB/s (5,089.28 MiB/s, 5.336 GB/s, 5,336.497 MB/s, 0.00485 TiB/s, 0.00534 TB/s) + and 1.24 GiB/s (1,269.76 MiB/s, 1.331 GB/s, 1,331.44 MB/s, 0.00121 TiB/s, 0.00133 TB/s) +
max memory channels1 +
microarchitecturecnMIPS +
model numberCN3120-550 EXP +
nameCavium CN3120-550 EXP +
packageHSBGA-868 +
part numberCN3120-550BG868-EXP +
power dissipation7 W (7,000 mW, 0.00939 hp, 0.007 kW) +
process130 nm (0.13 μm, 1.3e-4 mm) +
release price$ 125.00 (€ 112.50, £ 101.25, ¥ 12,916.25) +
seriesCN3100 +
smp max ways1 +
supported memory typeDDR2-667 +
technologyCMOS +
thread count2 +
word size64 bit (8 octets, 16 nibbles) +