KD80

KD80 is a member of peripheral IC series developed by King Billion Electronics Co. It is a black and white LCD Segment Extender. This chip must be used with KB's Type III or Type IV LCD Driver. This chip interfaces with KB's MCU with provisions of Segment Extender Interface LFR and LDL. KB's MCUs control KD80 through a command interface. The MCU can read/write display patterns to graphic mode display RAM by first setting up the target address, selecting the driver configuration, and then enabling the driver. KD80 can support four different configurations: 32 COM, 48 COM, 64 COM and 80 COM selectable by command register. The KD80 uses some of the memory as display RAM, while the memory not used for display can be access as general-purpose memory.