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???
03/20/10 01:05
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#174334 - MCU with High Speed Port
Responding to: ???'s previous message
I have come to learn today that the following Cypress MCU family supports a High Speed USB port.

CY7C68013A, CY7C68014A, CY7C68015A, CY7C68016A

They may have others as well. The above are based around a "enhanced" 8051 core.

Surprisingly the 8051 is not all that fast. It supports CPU operation at 48, 24 or 12MHz with four clocks per instruction cycle.

Code space is 16K bytes of RAM that can be loaded over USB port from host system or loaded from an EEPROM. THis internal 16K RAM is designed internally with OR'ed RD/ and PSEN/ such that the same RAM is addressable as code and XDATA.

Michael Karas


List of 20 messages in thread
TopicAuthorDate
USB 2.0 Compliant Yet Only Full Speed 12MHz            01/01/70 00:00      
   it is a common misconception...            01/01/70 00:00      
   Full vs High speed            01/01/70 00:00      
      USB 2.0 High Speed            01/01/70 00:00      
         480Mbps is quite fast            01/01/70 00:00      
            Applications            01/01/70 00:00      
               480Mbps on the way in            01/01/70 00:00      
                  Maybe, maybe not.            01/01/70 00:00      
                     Yes, things gets complicated at higher speeds            01/01/70 00:00      
                        you are fortunate            01/01/70 00:00      
                           Not lucky. Errata came much too late            01/01/70 00:00      
               What do you expect to do with data?            01/01/70 00:00      
            MCU with High Speed Port            01/01/70 00:00      
         other way around            01/01/70 00:00      
         Remember It is the Bus Sped            01/01/70 00:00      
            Still fast compared to most microcontrollers            01/01/70 00:00      
         high-speed USB with 48MHz Cypress 8051 core            01/01/70 00:00      
   Marketing kidding            01/01/70 00:00      
      re: marketing            01/01/70 00:00      
   browser problem?            01/01/70 00:00      

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