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CY8C20X36A Datasheet(PDF) 5 Page - Cypress Semiconductor |
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CY8C20X36A Datasheet(HTML) 5 Page - Cypress Semiconductor |
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5 / 43 page  CY8C20X36A/46A/66A/96A Document Number: 001-54459 Rev. *E Page 5 of 43 Additional System Resources System resources provide additional capability, such as configurable USB and I2C slave, SPI master/slave communication interface, three 16-bit programmable timers, and various system resets supported by the M8C. These system resources provide additional capability useful to complete systems. Additional resources include low voltage detection and power on reset. The merits of each system resource are listed here: ■ The I 2C slave/SPI master-slave module provides 50/100/400 kHz communication over two wires. SPI communication over three or four wires runs at speeds of 46.9 kHz to 3 MHz (lower for a slower system clock). ■ The I 2C hardware address recognition feature reduces the already low power consumption by eliminating the need for CPU intervention until a packet addressed to the target device is received. ■ The I 2C enhanced slave interface appears as a 32-byte RAM buffer to the external I2C master. Using a simple predefined protocol, the master controls the read and write pointers into the RAM. When this method is enabled, the slave does not stall the bus when receiving data bytes in active mode. For usage details, refer to the application note I2C Enhanced Slave Operation - AN56007. ■ Low-voltage detection (LVD) interrupts can signal the application of falling voltage levels, while the advanced power- on-reset (POR) circuit eliminates the need for a system supervisor. ■ An internal reference provides an absolute reference for capacitive sensing. ■ A register-controlled bypass mode allows the user to disable the LDO regulator. Getting Started The quickest way to understand PSoC silicon is to read this datasheet and then use the PSoC Designer Integrated Development Environment (IDE). This datasheet is an overview of the PSoC integrated circuit and presents specific pin, register, and electrical specifications. For in depth information, along with detailed programming details, see the Technical Reference Manual for the CY8C20x36A/46A/66A/96A PSoC devices. For up-to-date ordering, packaging, and electrical specification information, see the latest PSoC device datasheets on the web at www.cypress.com/psoc. Application Notes Application notes are an excellent introduction to the wide variety of possible PSoC designs. They are located at www.cypress.com/psoc. Select Application Notes under the Documentation tab. Development Kits PSoC Development Kits are available online from Cypress at www.cypress.com/shop and through a growing number of regional and global distributors, which include Arrow, Avnet, Digi- Key, Farnell, Future Electronics, and Newark. Refer to Development Kits on page 35. Training Free PSoC and CapSense technical training (on demand, webinars, and workshops) is available online at www.cypress.com/training. The training covers a wide variety of topics and skill levels to assist you in your designs. CYPros Consultants Certified PSoC Consultants offer everything from technical assistance to completed PSoC designs. To contact or become a PSoC Consultant go to www.cypress.com/cypros. Solutions Library Visit our growing library of solution focused designs at www.cypress.com/solutions. Here you can find various application designs that include firmware and hardware design files that enable you to complete your designs quickly. Technical Support For assistance with technical issues, search KnowledgeBase articles and forums at www.cypress.com/support. If you cannot find an answer to your question, create a technical support case or call technical support at 1-800-541-4736. [+] Feedback |
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