Cypress 公司的CY4623 PS2鼠标参考设计采用CY7C638xx enCoRe II系列产品. enCoRe II是集成了低速USB接口的8位闪存可编程微控制器,指令集特别是USB和PS2操作. enCoRe II具有多达20个GPIO,支持USB,PS/2和其它的应用.USB或PS2鼠标参考设计是成本效益节省空间的解决方案,具有USB,PS/2和WHQL标准的所有功能.本文介绍了enCoRe II系列产品主要特性,方框图,以及CY4623鼠标参考设计主要特性,方框图,电路图和材料清单.
Cypress has reinvented its leadership position in the low speed USB market with a new family of innovative microcontrollers. Introducing enCoRe II USB -‘enhanced Component Reduction.’Cypress has leveraged its design expertise in USB solutions to advance its family of low speed USB microcontrollers, which enable peripheral developers to design new products with a minimum number of components. The enCoRe II USB technology builds on the enCoRe family. The enCoRe family has an integrated oscillator that eliminates the external crystal or resonator, reducing overall cost. Also integrated into this chip are other external components commonly found in low speed USB applications, such as pull-up resistors, wakeup circuitry, and a 3.3V regulator. Integrating these components reduces the overall system cost.
The enCoRe II is an 8-bit flash programmable microcontroller with an integrated low speed USB interface. The instruction