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| EEUFC1V272资料 | |
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EEUFC1V272 PDF Download |
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File Size : 116 KB
Manufacturer:Panasonic Description:1.2 ARCHITECTURE The COP8SAx family is based on a modified Harvard archi- tecture, which allows data tables to be accessed directly from program memory. This is very important with modern microcontroller-based applications, since program memory is usually ROM or EPROM, while data memory is usually RAM. Consequently data tables usually need to be con- tained in ROM or EPROM, so they are not lost when the mi- crocontroller is powered down. In a modified Harvard archi- tecture, instruction fetch and memory data transfers can be overlapped with a two stage pipeline, which allows the next instruction to be fetched from program memory while the current instruction is being executed using data memory. This is not possible with a Von Neumann single-address bus architecture. The COP8SAx family supports a software stack scheme that allows the user to incorporate many subroutine calls. This capability is important when using High Level Languages. With a hardware stack, the user is limited to a small fixed number of stack levels. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：EEUFC1V272 厂 家：Panasonic 封 装：07+ 批 号：DIP 数 量：150000 说 明：【自己库存】 |
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运 费： 所在地： 新旧程度： |
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| 联系人：陈生 |
| 电 话：0755-82565235.0755-88391555.0755-82807567 |
| 手 机：13798377798 |
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| 公司地址： 深圳市福田区振中路鼎诚国际1018室 |
