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201306251157[XO2] XO2 JTAG 當一般IO使用 (2013/06/25)

Lattice XO2 幾乎算沒啥缺點,唯一的缺點就是....腳位不夠多

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201305231736[XO] XO內部pull low阻值

During power up the I/Os are in high-z state with internal weak pull-up to VCCIO. The I/O's are also in high-z state by default during configuration. You can change the I/O State during configuration using the ispVM system. If you click on the "Expand" option next to Operation, you can set the I/O State.

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201303111544[ECP3] Mixed Voltage Support is a Bank (2013/03/11)

在使用ECP3 時,需在不同Bank使用不同voltage. 可參考TN1117 P6 Mixed Voltage Support in a Bank. 在此提到有分Top Bank 以及 Left and Right Bank 會有不同的輸入電壓範圍. PS: 但~ 目前還未出現有 Left and Right Bank 接2.5V 但接3.3V 會出現IO 燒掉現象. (但 仍不建議使用)

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