ra8835a RAIO Technology Inc., ra8835a Datasheet - Page 36

• Manufacturer Part Number: ra8835a
• Description: Dot Matrix Lcd Controller
• Manufacturer: RAIO Technology Inc.

RAiO TECHNOLOGY INC.
Version 1.0
7-3 MCU Interface Examples
7-3-1 Z80 to RA8835A Interface
7-3-2 6802 to RA8835A Interface
only make repeated reads if the read loop time exceeds the RA8835A series cycle time, t
If it does not, NOP instructions may be inserted in the program loop. t
are given in section 7-2.
6802
Z80
RESET
RESET
VMA
IORQ
R/W
A15
D0
D7
A0
A1
A15
WR
to
to
E
RD
A0
A1
D0
D7
Figure 7-2B: 6802 to RA8835A Interface
to
to
Figure 7-2A: Z80 to RA8835A Interface
RESET
Decoder
RESET
Decoder
36/88
A0
CS
D0
D7
A0
WR
RD
to
CS
D0
D7
RES
WR
RD
to
RES
RA8835
RA8835
SEL1
SEL2
SEL1
SEL2
Dot Matrix LCD Controller
V
ACC
DD
RA8835A
www.raio.com.tw
, t
ACV
and t
CYC
limits
CYC
.