Akai MPC3000 Service Manual page 54

LC7981
PIN No.
SYMBOL
FUNCTION
1
to
4
MAO
to
15
Display
RAM
address
out
49
to
60
5
MB
LCD
drive signal (B type)
C
R
CR
connect
pin for
osc
CR
9
CPO
Slave clock
10
FLM
Frame
signal
11
CL
1
Display data
latch signal
12
SYNC
Parallel drive
sync
13
WE
Write
enable
14
RESET
Reset
15
CS
Chip
select
16
E
Enable
17
R/W
Read/Write
18
RS
Register
19
MA
20
GND
Ground
21
to
DB
0
to
7 Data bus
28
29
VDD
+
5
V
30
to
MD
0
to
7 Display data
bus
37
38
to
RD
0
to
7
ROM
data
in
45
46
CL
2 Display data
shift
clock
EH
D1 Display data serial out
D1
....
Upper frame
EBI
D2
D2....
Lower frame