Writing Scripts with Notepad to Test the Interaction Between LSB and MSB Program
LSB (Least Significant Bit) and MSB (Most Significant Bit) are actually two bits in the same cell of a MLC NAND Flash, LSB is relative to Lower Page and MSB is associated to Upper Page. As the Lower Page is programmed first, the Upper Page has higher requirements for the voltage accuracy during programming. Programming the Upper Page is slow and inevitably causes influences or even errors to Lower Page. And in theory programming the Lower Page certainly has effects on the Upper Page.