Citizen Systems pmn Input and Output Signals 9.3.1 Input and Output Signals, Select, ∙ Compulsion

iDP3410 User's Manual

9.3Input and Output Signals 9.3.1 Input and Output Signals

(1) Input signals to the printer

∙	DATA			: An 8-bit parallel signal. (Positive logic)
∙				: A strobe signal to read the 8-bit data. (Negative logic)
	STB
∙				: A signal to reset the printer from the outside.(Negative logic)
	RESET
(2) Output signals from the printer
∙				: An 8-bit data request signal. A pulse signal output at the end of the BUSY signal.
			ACK
∙				(Negative logic)
	BUSY			: A signal to indicate the BUSY status of the printer. Input new data when at
∙				"LOW". (Positive logic)
		FAULT		: A signal turned to "LOW" when the printer has an alarm. At this time, all the
∙				control circuits in the printer stop. (Negative logic)
	SELECT			: A signal to show whether the printer is selected(on-line) or deselected.(Positive

logic)

∙COMPULSION

:A signal to show the status of the drawer switch.(Positive logic)

∙PE :A signal to show that the paper has run out. Normal at the "LOW" level, but turned to the "HIGH" level when the paper has run out.

(3)Power related signal

∙	GND	: Common ground on the circuits
∙	Vcc	: A +5V signal. Connected via a 3.3kΩ resistor.

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