Epson T70 specifications Interface signals, Pin Source Compatibility Nibble Mode Byte Mode, Gnd

Appendix

Interface signals

Pin	Source		Compatibility		Nibble Mode	Byte Mode
				Mode
1	Host		Strobe		HostClk	HostClk
2	Host/Ptr	Data0 (LSB)			Data0 (LSB)	Data0 (LSB)
3	Host/Ptr	Data1			Data1	Data1
4	Host/Ptr	Data2			Data2	Data2
5	Host/Ptr	Data3			Data3	Data3
6	Host/Ptr	Data4			Data4	Data4
7	Host/Ptr	Data5			Data5	Data5
8	Host/Ptr	Data6			Data6	Data6
9	Host/Ptr	Data7 (MSB)			Data7 (MSB)	Data7 (MSB)
10	Printer				PtrClk	PtrClk
			Ack
11	Printer	Busy			PtrBusy/Data3,7	PtrBusy
12	Printer	Perror			AckDataReq/Data2,6	AckDataReq
13	Printer		Select		Xflag/Data1,5	Xflag
14	Host				HostBusy k	HostBusy
			AutoFd
15			NC		ND	ND
16			GND		GND	GND
17			FG		FG	FG
18	Printer	Logic-H			Logic-H	Logic-H
19			GND		GND	GND
20			GND		GND	GND
21			GND		GND	GND
22			GND		GND	GND
23			GND		GND	GND
24			GND		GND	GND
25			GND		GND	GND
26			GND		GND	GND
27			GND		GND	GND

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