The RAM pattern should be loaded when the MAX20303 comes out of Off mode or at boot.
To write a pattern to RAM, the user must set HptRamEn(0x31[6]) to high to enable haptic RAM programming mode.
In RAMHP mode, the haptic driver runs the vibration pattern beginning at the RAM address stored in HptPatRAMAddr.
Execute a write to register 0x28(HptRAMAddr) sets the starting address in RAM of the haptic pattern followed by 3 data bytes HptDataH, HptDataM, and HptDataL
It is possible to read back data from RAM. Writing an address to HptRAMAddr, then initiating an I2C read transaction of register 0x29, will allow readback of the three bytes stored in the RAM address.