2 – 5
(4) CG ROM
This is a 1024K × 16 bits (16M bits) MASK ROM with the font data for the characters
stored.
CG ROM is assigned to the program memory area of the MPU and is fetched by the PSEN
signal of the MPU.
The following shows the memory access operation.
D0~D15
P02
PSEN
MPU
CG-N
A0~A19
ROM
Program
IN
Program
IN
Program
IN
MPU CLOCK
A0~A19
CG-N
PSEN-N
D0~D15
CE
OE