AN50987 - Getting Started with I2C in PSoC® 1
Last Updated: 12/07/2012
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Version: *C
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| AN50987 discusses the I2C protocol, and how the PSoC 1 device handles I2C communications. |
现在在中国 !!
今日本語で !!
This includes an overview of the basics of the I2C protocol, followed by a discussion of how I2C is implemented in PSOC 1. This discussion includes a brief overview of each I2C User Module (UM) and their advantages and disadvantages. In addition, special I2C considerations are discussed, such as: pull-up resistors, clock stretching, ISSP, and Hot Swapping. After reading this application note, the reader should have an understanding of how I2C works, how it is implemented in PSoC 1, and how to choose the correct user module for a design. Detailed examples and example projects are not provided, for that information the specific User Module Datasheet should be reviewed.
Example Project |
Supported H/W and S/W |
Supported PSoC1 Devices |
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PSoC Designer Version |
H/W Kit |
CY8C20xxx |
CY8C21xxx |
CY8C22xxx |
CY8C23xxx |
CY8C24xxx |
CY8C27xxx |
CY8C28xxx |
CY8C29xxx |
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No |
N/A |
N/A |
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x23, x34, x45 |
x45 |
x33 |
x23A, x94 |
x43 |
x |
x66 |
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这些文档仅供参考。赛普拉斯、赛普拉斯管理层、雇员及分销商对翻译错误不承担任何责任。当您在设计开发过程中使用这些文档时，我们强烈建议您参照英文版本。
これらの文献はあくまでもご参考のためのみに日本語翻訳されています。誤訳によるトラブルが発生した場合、Cypress Semiconductor Corp. 全ての子会社、関連会社、役員、従業員、販売代理店は一切の責任を負いかねます。
最新の英語版オリジナル文献を必ずご参照いただくことをお勧め致します。
Translated documents are for reference only. We recommend that you refer to the English-language version of a document if you are engaged in development of a design.
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Related Documentation |
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| User Module Datasheets |
Last Updated |
| User Module Datasheet: Easy I2C Slave Datasheet EzI2Cs V 1.30 (CY8C29/27/24/22/21xxx, CY8C23x33, CY8CLED02/04/08/16, CY8CLED0xD, CY8CLED0xG, CY8CTST110, CY8CTMG110, CY8CTST120, CY8CTMG120, CY8CTMA120, CY8C21x45, CY8C22x45, CY8C28x45, CY8CPLC20, CY8CLED16P01, CY8C28xxx, CY8C21x12) |
08/02/2012 |
| User Module Datasheet: I2C Hardware Block Datasheet I2CHWV 1.90 (CY8C29/27/24/22/21xxx, CY8C23x33, CY7C603xx, CY7C64215, CYWUSB6953, CY8CLED02/04/08/16, CY8CLED0xD, CY8CLED0xG, CY8CTST110, CY8CTMG110, CY8CTST120, CY8CTMG120, CY8CTMA120, CY8C21x45, CY8C22x45, CY8C28x45, CY8CPLC20, CY8CLED16P01, CY8C28xxx, CY8C21x12) |
10/23/2012 |
| User Module Datasheet: I2C Bootloader Datasheet BootLdrI2C V 2.40 (CY7C603xx, CY7C64215, CY8C21x12, CY8C21x45, CY8C22x45, CY8C23x33, CY8C24x9x, CY8C28x43, CY8C28x52, CY8C29/27/24/21x3x, CY8CPLC20, CY8CLED04/08/16, CY8CLED0xD, CY8CLED0xG, CY8CLED16P01, CY8CTST110, CY8CTMG110, CY8CTST120, CY8CTMG120, CY8CTMA120, CY8C20x24, CY8C20x34) |
10/22/2012 |
| User Module Datasheet: I2C Master Datasheet I2Cm V 1.4 (CY8C29/27/24/22/21xxx, CY7C603xx, CY7C64215, CYWUSB6953, CY8C23x33, CY8CLED0xD, CY8CLED0xG, CY8CLED02/04/08/16, CY8CTST110, CY8CTMG110, CY8CTST120, CY8CTMG120, CY8CTMA120, CY8C21x45, CY8C22x45, CY8C28x45, CY8CPLC20, CY8CLED16P01, CY8C28xxx, CY8C21x12) |
08/02/2012 |
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Related Knowledge Base: Communication, EzI2Cs, I2C, I2CHW, Clock Stretching
Spec No: 001-50987;
Sunset Owner: GRAA;
Secondary Owner: GULA;
Sunset Date: 06/14/11
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