解决方案ID: rd02202004_8141
最后修改: 2007 年5 月23 日
产品类别: 器件
产品领域: 编程(CPLD/配置器件)
产品子领域: 在系统编程
器件系列: MAX II
标题
What would happen if power fails during in-system programmability (ISP) or Real-Time ISP programming of MAX II devices?
说明
If power fails during ISP or Real-Time ISP, programming will fail with an error to the programming software. If power is restored, you can attempt to re-program the device. If a device is not programmed successfully, upon power-up, all I/O's will tri-state. This fail safe is achieved by a "program_done" bit feature in MAX II which also available in MAX 7000AE/7000B/3000A devices. Program_done is the last bit to be programmed in the device - if it is not set, the device knows programming did not complete and it will not release the I/O's from tri-state.反馈
Altera并不保证此解决方案能够达到客户的预期目的，并不承担所有的解决方案的使用和信赖的责任。
