Contents
Revision History ............................................................................................................................................ 1
Contents ........................................................................................................................................................ 2
Features ........................................................................................................................................................ 3
Hardware ...................................................................................................................................................... 3
Drawing ..................................................................................................................................................... 3
Interface .................................................................................................................................................... 3
Instructions ................................................................................................................................................... 4
Outline ...................................................................................................................................................... 4
Instruction Table ....................................................................................................................................... 4
Timing Characteristics ............................................................................................................................... 5
Specifications ................................................................................................................................................ 6
Electrical .................................................................................................................................................... 6
Optical ....................................................................................................................................................... 6
Environmental ........................................................................................................................................... 6
Troubleshooting ............................................................................................................................................ 7
Power ........................................................................................................................................................ 7
Display ....................................................................................................................................................... 7
Communication ......................................................................................................................................... 7
Precautions ............................................................................................................................................... 7
Ordering ........................................................................................................................................................ 8
Part Numbering Scheme ........................................................................................................................... 8
Options ...................................................................................................................................................... 8
Contact .......................................................................................................................................................... 8
2
Features
The Matrix Orbital Parallel display series offers a low cost display solution utilizing an industry standard
communication interface for simple integration into a wide variety of new and existing applications. The
Light Emitting Diode backlight with configurable brightness and voltage controlled contrast allows the
MOP Liquid Crystal Display line to offer a professional display solution for any project.
Hardware
Drawing
Figure 1: MOP-GL12864F Mechanical Drawing
Interface
Table 1: Display Control
Table 2: Parallel Data and Backlight
Pin
1
2
3
4
5
6
7
8
9
18
Symbol
V
SS
V
DD
V
0
RS
CS1
CS2
CL
E
R/W
RST
Description
Ground
Supply Voltage for Logic
Supply Voltage for LCD (Contrast)
Register Select
Chip Enable (Left)
Chip Enable (Right)
Clock
Enable
Read/ Write
Reset
Pin
10
11
12
13
14
15
16
17
19
20
Symbol
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
LED (+)
LED (-)
Description
Data bit 0
Data bit 1
Data bit 2
Data bit 3
Data bit 4
Data bit 5
Data bit 6
Data bit 7
Backlight Anode
Backlight Cathode
3
Instructions
Outline
The MOP-GL12232B is controlled using a standard SED1520 compliant controller. The display is enabled
by pulling the Enable (E) pin high, communication to and from the device is controlled by pulling the
Read/Write (R/W) line high or low respectively, and the unit may be reset at power up by pulling the
reset (RST) line low. Using Register Select (RS), either the data register or command register is selected
by toggling RS high or low respectively.
Before any data is read or written, the status of the display controller should be read. This is
accomplished by setting RS low, R/W high, E high, and reading the status byte that appears on the data
lines. Each bit of the status word indicates a specific condition, outlined below.
Table 3: Status Bits
Bit
D0
D1
D2
D3
D4
D5
D6
D7
Description
Unused.
Unused.
Unused.
Unused.
Reset.
Display On/Off.
Display Data Direction.
Busy status.
Status
Unused.
Unused.
Unused.
Unused.
0:Normal, 1:Reset.
0:Display On, 1:Display Off.
0: Counter-CW, 1: Clockwise.
0:Ready, 1:Busy.
Instruction Table
Table 4: Parallel Instruction Table
Instruction
Display On
Display Off
Display Start Line
Set (X) Page
Set (Y) Address
Status Read
Write Display Data
Read Display Data
Counter-CW Display Data
Clockwise Display Data
Static Drive On
Dynamic Drive On
Set Data Auto Write
End Data Auto Write
Reset
Control
RS
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
R/W
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
DB7
1
1
1
1
0
Busy
DB6
0
0
1
0
ADC
DB5
1
1
0
1
Instruction Code
DB3 DB2 DB1 DB0
1
1
1
1
1
1
1
0
Start Line
1
1
0
X Page
Y Address
On/Off Reset
0
0
0
0
Write Data
Read Data
1
0
0
0
0
1
1
0
0
0
0
0
1
0
0
1
0
1
1
0
0
1
0
0
1
0
0
0
0
0
1
0
1
1
1
0
1
0
0
0
1
0
DB4
0
0
1
1
1
1
1
1
1
0
0
0
0
1
1
1
4
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