IEEE Circuits and Systems Magazine - Q2 2022 - 16

von Neumann Architecture Von Neumann architecture
is the foundation of modern general-purpose computers.
It is shown in Figure 9(a). A typical von Neumann
architecture consists of following components: a central
processing unit (CPU), memories, and input/output (I/O)
devices. Devices are connected through bus systems.
Data and program are stored in external memory, and
fetched by CPU sequentially. Such architecture sufferers
from the well-known von Neumann bottleneck, i.e. the
system performance is bounded by the data exchange
speed between CPU and the external memory. Though
von Neumann architecture provides high flexibility, it is
Neuron
Neuron
Controller
CPU
Memory
Controller
Arithmetic/Logic
Unit
Registers
(a)
Input
Output
Memory
Memory
Arithmetic/Logic Unit
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Neuron
Neuron
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(b)
Router
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Neuron
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Arithmetic/Logic Unit
Memory
Multiplexed Neurons
Router
Core
Neuron
Controller
Arithmetic/Logic Unit
Memory
Multiplexed Neurons
(c)
Figure 9. (a) Von Neumann Architecture (b) Ideal Neuromorphic Architecture (c) Practical Neuromorphic Core.
16
IEEE CIRCUITS AND SYSTEMS MAGAZINE
SECOND QUARTER 2022
Core
Neuron
Controller
Arithmetic/Logic Unit
Memory
Multiplexed Neurons
Core
Neuron
Controller
Arithmetic/Logic Unit
Memory
Multiplexed Neurons
Router
Router
Controller
Arithmetic/Logic Unit
Memory

IEEE Circuits and Systems Magazine - Q2 2022

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