EM78815
8-Bit Microcontroller
12 Application Circuit
LCD pannel
65x264 pixels
SEGMENT
COMMON
SEGMENT
COMMON
FR
FR
CL
CL
/DOF
/DOF
LCD driver
LCD driver
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
EM9L8580(master)
EM9L8580(slave)
VDD
( support max 65x132 pixels)
( support max 65x132 pixels)
P/S
P/S
M/S
/WR
/WR
CLK A0 /RD
CLK A0 /RD
/CS1
/CS1
M/S D0..D7 /RES
/RES
D0..D7
8
VDD
Key matrix
PORT80
PB7~PB0
VDD,AVDD
VDD
PORT95
PORT96
XIN
27p
27p
0.1u
32.768k
XOUT
PLLC
PORT97
AVSS,GND
EGIN1
EM78815
P73
P71 P72
VDD
P70
TIP
47K
4700p
LINE
RING
EGIN2
47K
47K
47K
4700p
STGT
TIP
4700p
4700p
RING
EST
CWGS
CWIN
Expanding m em ory
interf ace
EX T ERN A L
M emory
47p
150K
39K
4700p
L ine
Speech
Interface
N etw ork
Fig. 35 External Multi-chip LCD Driver Application Circuit
74 •
Product Specification (V2.4) 02.17.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
