[4]?
?
Pin?Description?
?
Parallel?Interface?(default):??
Pin?No.?
Symbol?
External?
Connection?
Function?Description
1?
VSS?
Power?Supply?
Ground
2?
VDD??Power?Supply?
Supply?Voltage?for?OLED?and?logic
3?
NC?‐Must?not?be?connected
4?
RS?
MPU?
Register?select?signal.?RS=0:?Command,
RS=1:?Data?
5?
R/W?
MPU?
Read/Write?select?signal,?R/W=1:?Read
R/W:?=0:?Write??
6?
E?
MPU?
Operation?enable?signal.
Falling?edge?triggered.?
7‐10?
DB0?–?DB3?
MPU?
Four?low?order?bi‐directional?three‐state?data?bus?lines.??These?four?
are?not?used?during?4‐bit?operation.?
11‐14?
DB4?–?DB7?
MPU?
Four?high?order?bi‐directional?three‐state?data?bus?lines.??
15?
NC?‐Must?not?be?connected
16?
NC?‐Must?not?be?connected
?
?
Serial?Interface:??
Pin?No.?
Symbol?
External?
Connection?
Function?Description
1?
VSS?
Power?Supply?
Ground
2?
VDD??Power?Supply?
Supply?Voltage?for?OLED?and?logic
3‐11?
NC?‐Must?not?be?connected
12?
SCL?
MPU?
Serial?Clock?signal
13?
SDO?
MPU?
Serial?Data?output?signal
14?
SDI?
MPU?
Serial?Data?input?signal
15?
/CS?
MPU?
Active?LOW?Chip?Select?signal
16?
NC?‐Must?not?be?connected
?
?
Jumper?Selections?
MPU?Interface?
H_PS_L?
J68_J80
H_SHL_L
H_CS1_L
H_CS2_L
JCS1?
JCS2
6800‐MPU?Parallel?(default)?
H?
J68?
H
L
H
X?
X
8080‐MPU?Parallel?
H?
J80?
H
L
H
X?
X
Serial?MPU?
L?
X?
H
Open
Open
Short?
Short
X?=?Don’t?care?
?
?
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