Hello,
I have been trying to improve ESD Immunity on OMAPL138.
The usage note on silicon errata describes the following: (sprz301g: P7)
Disable the DLL REFCLK signal in the DDR EMIF PHY.
This prevents the DLL used by the DDR PHY from dynamically tracking glitches on the input clock.
This can be done after normal DDR initialization by setting the following bit in the DDR PHY Control Register (0xB00000E4):
DRPYC1R |= 0x00002000;
Although I have refered TRM, DRPYC1R[13] bit have been reserved.
- Can I ignore reserve and set DRPYC1R[13] bit ?
- If there is other way, how can I disable DLL REFCLK ?
Best regards,
RY
