The CNNUC3: an analog I/O 64x64 CNN universal machine chip prototype with 7-bit analog accuracy
The CNNUC3: an analog I/O 64x64 CNN universal machine chip prototype with 7-bit analog accuracy
复制标题
CNNUC3：具有 7 位模拟精度的模拟 I/O 64x64 CNN 通用机器芯片原型
DOI：
10.1109/cnna.2000.876845
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
A. Rodriguez
中科院分区：
文献类型：
--
作者：
G. Liñán;S. Espejo;R. Domínguez;A. Rodriguez
本文描述了一种全定制混合信号芯片，该芯片在通用硅基板上嵌入了分布式光信号采集、数字可编程模拟并行处理和分布式图像存储器（缓存）。该芯片采用 0.5 /spl mu/m CMOS 标准技术设计，包含约 1000000 个晶体管，其中 80% 以模拟模式运行。芯片功能特性符合 CNN 通用机器范例。该芯片能够在较短的计算时间内并使用较低的功耗完成复杂的时空图像处理任务。该芯片的内部电路设计为以稳健的方式运行，在内部模拟操作中具有 >7 位等效精度，这一点已通过实验测量得到证实。因此，就所有实际目的而言，由芯片完成的处理任务与由数字处理器完成的处理任务具有相同的精度，数字处理器之前有用于图像数字化的7位数模转换器。
This paper describes a full-custom mixed-signal chip which embeds distributed optical signal acquisition, digitally-programmable analog parallel processing, and distributed image memory (cache) on a common silicon substrate. This chip, designed in a 0.5 /spl mu/m CMOS standard technology contains around 1000000 transistors, 80% of which operate in analog mode. Chip functional features are in accordance to the CNN Universal Machine paradigm. The chip is capable to complete complex spatio-temporal image processing tasks within short computation time and using a low power budget. The internal circuitry of the chip has been designed to operate in robust manner with >7-bit equivalent accuracy in the internal analog operations, which has been confirmed by experimental measurements. Hence, to all practical purposes, processing tasks completed by the chip have the same accuracy than those completed by digital processors preceded by 7-bit digital-to-analog converters for image digitalization.