Fujitsu DL6400 manual Slct

DL6400/6600 Book Page 3 Friday, July 31, 1998 11:42 AM

				Parallel Interface
		Table C–1 Parallel interface signals (Continued)
Pin	Return	Signal	Direction	Description
number	pin	Compatible mode
	number	Nibble mode
11	29	Busy	Output	Data cannot be received when this signal
				is high. e.g., if the buffer is full, or an
				error occurs.
		Printer Busy		Reverse data transfer phase:
				Data bit 3, data bit 7, then forward path
				(host to printer) busy status
12	30	Paper Empty	Output	This signal goes high if paper runs out.
		(P E)
		Ack Data Req		Reverse data transfer phase:
				Data bit 2, then data bit 6
				Reverse idle phase:
				This signal is set high until the host
				requests data and, after that, follows the
				Data Available signal.
13	—	Select	Output	This signal goes high when the printer is
		(SLCT)		selected (online), and goes low when the
				printer is deselected (offline).
		X Flag		Reverse data transfer phase:
				Data bit 1, then data bit 5

INTERFACE

INFORMATION

User’s Manual C-3