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CN8020 - Cavium
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Octeon TX CN8020
no photo (ic).svg
General Info
DesignerCavium
MarketStorage
General Specs
FamilyOCTEON TX
SeriesCN80xx
Frequency1,500MHz
Microarchitecture
ISAArmV8 (ARM)
MicroarchitectureArmv8.1
TechnologyCMOS
Word Size64 bit
Cores2
Threads2
Max Memory16GB
Multiprocessing
Max SMP1-Way (Uniprocessor)

CN8020 is a 64-bit dual-core ARM processor designed by Cavium. This processor, which incorporates 2 thunderx1 cores. This MPU includes a number of hardware accelerators specifically for improving the performance of storage and network software such as networking, TCP & QoS, and crypto acceleration.

Cache

Main articles: cavium/microarchitectures/thunderx1 and 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$208KiB
212,992 B
0.203 MiB
L1I$144KiB
147,456 B
0.141 MiB
2x72 KiB  
L1D$64 KiB
65,536 B
0.0625 MiB
2x32 KiB  

L2$1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
  1x1 MiB  

Memory controller

[Edit/Modify Memory Info]

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Integrated Memory Controller
Max TypeDDR3/4-2100
Supports ECCYes
Max Mem16GB
Controllers1
Width72bit

Expansions

[Edit/Modify Expansions Info]

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Expansion Options


Networking

Interface options:

Hardware Accelerators

[Edit/Modify Accelerators Info]

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Hardware Accelerators
Networking
TCPYes
QoSYes

Block diagram

Datasheet

Facts about "CN8020 - Cavium"
base frequency1,500 MHz (1.5 GHz, 1,500,000 kHz) +
core count2 +
designerCavium +
familyOCTEON TX +
full page namecavium/octeon tx/cn8020 +
has ecc memory supporttrue +
has hardware accelerators for network quality of service processingtrue +
has hardware accelerators for tcp packet processingtrue +
instance ofmicroprocessor +
isaArmV8 +
isa familyARM +
l1$ size208 KiB (212,992 B, 0.203 MiB) +
l1d$ size64 KiB (65,536 B, 0.0625 MiB) +
l1i$ size144 KiB (147,456 B, 0.141 MiB) +
l2$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
ldate1900 +
market segmentStorage +
max cpu count1 +
microarchitectureArmv8.1 +
nameOcteon TX CN8020 +
seriesCN80xx +
smp max ways1 +
supported memory typeDDR3/4-2100 +
technologyCMOS +
thread count2 +
word size64 bit (8 octets, 16 nibbles) +