Display Interface

Signal Descriptions

Signal	Description	Availability
D0:7	8-bit parallel video data bus. Each bit represents one pixel.	Internal & External
M	New frame clock (FLM) divided by 2. Prevents ghosting by switching LCD polarity. About 30Hz.	Internal
CL1	End of line clock. Marks the end of a 80 byte/640 pixel line. (Horizontal Sync)	Internal
CL2	Video byte clock. Signals that a new 8 bits of video data is available.	Internal & External
FLM	New frame clock. About 60Hz. (Vertical Sync)	Internal & External
DISP_BLANK	Turns off the display.	Internal
Contrast	Contrast potentiometer control.	Internal (M5120 Only)
Brightness	Brightness potentiometer control.	Internal (M5126 Only)
Battery Voltage	For monitoring the battery voltage.	External
BAT+_D	Battery voltage supply for backlight	Internal (M5126 Only)
VCC	"Powered-on" +5V supply	Internal and External

Pixels are sent in a "Most Significant Bit" first order on the 8-bit parallel bus. In a line of 8 pixels, bit 7 is the leftmost pixel and bit 0 is the rightmost.

Examples

Connector Pinouts

M5120 Internal Connector Pinout:

Pin	Description	|	Pin	Description
1	GND		2	D7
3	D6		4	GND
5	D5		6	D4
7	GND		8	D3
9	D2		10	GND
11	D1		12	D0
13	GND		14
15	GND		16	CL2
17	CL1		18	GND
19	FLM		20	M
21	GND		22	VCC
23	VCC		24	VCC
25	DISP_BLANK		26	Contrast

M5126 Internal Connector Pinout:

Pin	Description	|	Pin	Description
1	D7		2	D6
3	GND		4	D5
5	D4		6	GND
7	D3		8	D2
9	GND		10	D1
11	D0		12	GND
13	CL2		14	CL1
15	GND		16	FLM
17	M		18	GND
19	VCC		20	VCC
21	DISP_BLANK		22	+5V
23			24	GND
25	GND		26	GND
27	Brightness		28	Brightness 2
29	VCC		30
31	BAT+_D		32	BAT+_D
33			34

External Video Connector

Pin	Description	|	Pin	Description
1	D0		2	D1
3	VCC		4	D2
5	D3		6	D4
7	GND		8	VCC
9	GND		10	D5
11	D6		12	D7
13	Battery Voltage		14	FLM
15	CL2