Remote Technologies RPC-320 manual Display Types, Display Connector PIN OUT

DISPLAY PORT

DISPLAY TYPES

RPBASIC-52' s software driver is based upon the characteristics of the display family. Compatible VF and LCD displays are shown below:

Manu fact.	Model	Type
Optrex	DMC 40457	LCD 4 x 40
Optrex	DMC 40202	LCD 2 x 40
IEEE	3601-90-080	VF 4 x 20
Optrex	DMF 682N	LCD 160W x 128D

DISPLAY CONNECTOR PIN OUT

The displa y port uses an 82C5 5 for data and contr ol. The table below lists a pin number and its intended function. A display may not use all lines even though they are available.

J4	8255	Function
Pin	Port/line
1		Logic + 5V
2		Digital ground
3	A/4	D4
4		Contrast voltage
5	A/6	D6
6	A/5	D5
7	B/4	Reset (from invertor)
8	B/3	Write
9	B/2	Read
10	A/7	D7
11	A/1	D1
12	A/0	D0
13	A/3	D3
14	A/2	D2
15	B/7	CS (from invertor)
16	B/6	Com mand/ data
17	B/5	Halt
18		Contrast adjust
19		Alternate power
20		Power gr ound

J4 is available for additional I/O if a display is not used. Port A is configured as an input or output. P ort B must be configur ed as an outpu t if a 17 key or larger keypad is used. Use the L INE B comm and to acces s this part.

I/O bank is 4.

Pins 18, 19, and 20 are for the LCD -5003 and other graphic displays.

SECTION 8

COMMANDS

The following RPBASIC-52 com mands are used for the display.

Comm and	Function
CLEAR DISPLAY	Clears entire display
CLEAR DISPLAY LINE Clears curr ent line
CONFIG DISPLAY	Specifies display type to
	use
DISPLAY	Prints the string at the
	row and collum specified

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