The Feature Row Editor will open up. The SSPI/I2C enable/disable settings are saved in a 16 bit feature bit row. The Window has the option to browse and read the JEDEC file you have created. Once you select the JED file, the 32-bit Feature Row and 16 Bit feature bit row gets populated with the current setting. In the feature bit row, you can find SSPI Persistence Disable and I2C Persistence Disable . A "1" denotes it is DISABLED and "0" denotes it is Enabled. You can click on the bit values to change 1 to 0 and vice-versa. Once done, click the "write" button" to modify the bitstream settings. However you should be careful while modifying such values as there are programming sensitive pins .
Please read TN1204 for more information.
With the Diamond Software's Programmer Tool also user can read the contents of the feature row of the MachXO2 and MachXO3L, edit the settings, and program the new settings into the feature row of the device.
Please Refer to Diamond Help (Diamond3.3 Help and Diamond 2.2 Help ), Feature Row options.
Also, the Diamond Software Bundle (Version 3.1 and above) has another utility called Programming File Utility, which has options for the
feature row editing as well.
Please refer to Diamond Programming Utility Help.