control lines for writing or reading through an MPU interface, it has a 128-word character generator
ROM ( refer to Table 1. ), which can control an external display RAM of up to 8K bytes. Allocation
of text, graphics and external character generator RAM
can be made easily and the display window
can be moved freely within the allocated memory range.
RAM Interface
The external RAM is used to store display data( text, graphic and external CG data ). It can be
freely allocated to the memory area( 8 K byte max ).
Recommend
Flowchart of communications with MPU
(1) Status Read
A status check must be performed before data is read or written.
TEXT AREA
GRAPHIC
AREA
CG RAM
AREA
0000H
0C00H
1800H
2000H
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