Having a problem understanding controller. The ram mapping in the spec shows a 5-bit segment (address) and 4-bit common (data). The data is 1-to-1 mapping to the common bits. The timing diagram shows these two fields being clocked to the controller. The two fields make up the address which is mapped to the segment/col pins of the LCD.
My LCD has 18-segment plus 4-commons. Segment 9, common 2 would form an address of 010010 and data of 0100.
But how is a data item set for this memory/address location?