Datasheet

GE-G12864A-TMI-V/RN page 14 / 23 13.07.2011
11.Detailed Explanation
The display data appears when D is 1 and disappears when D is 0. Though the data is not on
the
screen with D=0, it remains in the display data RAM. Therefore, you can make it appear by
changing D=0 into D=1.
SET ADDRESS (Y ADDRESS)
Y address (AC0-AC5) of the display data RAM is set in the Y address counter. An address is set by
instruction and increased by 1 automatically by read or write operations of display data.
SET PAGE (X ADDRESS)
X address (AC0-AC2) of the display data RAM is set in the X address register. Writing or reading
to
or from MPU is executed in this specified page until the next page is set.
DISPLAY START LINE (Z ADDRESS)
Z address (AC0-AC5) of the display data RAM is set in the display start line register and displayed
at the top of the screen. When the display duty cycle is 1/64 or others (1/32-1/64), the data of total
line number of LCD screen, from the line specified by display start line instruction, is displayed.
STATUS READ
‧BUSY
When BUSY is 1, the Chip is executing internal operation and no instructions are accepted.
When BUSY is 0, the Chip is ready to accept any instructions.