Citizen PPU-231 manual Input and Output Signals, Strobe

PPU-231 User’s Manual

6.3Input and Output Signals

6.3.1Input and Output Signals

(1) Input signals to the printer

• DATA		: 8-bit parallel signal (Active: “High”)
•		: Strobe signal to read the 8-bit data (Active: “Low”)
	STROBE
•		: Signal to reset the entire printer (Active: “Low”); 1 ms or more
	RESET
(2) Output signals from the printer
		: 8-bit data request signal. A pulse signal to be output at the end of the BUSY signal
• ACK
		(Active: “Low”)
• BUSY		: Signal to indicate that the printer is busy. Input new data when it is "Low."
		(Active: “High”)
		: Turned to "Low" when the printer has an alarm. At this time, all the control circuits in
• FAULT
		the printer stop. (Active: “Low”)
• PE		: Output if the printing paper has run out or is running out. (Active: “High”)

28 CITIZEN