Seiko Instruments G1216B1N000 user manual MPU Connection Diagram, Z80 PIO, Iorq RST CS1, INT CS2

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						AN.No.G1216B1N000-3D0E
3.7	MPU Connection Diagram
	Z80A			Z80 PIO		G1216
	D0 to D7			D0 to D7	A0 to A7	DB0 to DB7
A0 to A15		Decoder		CE	B0	E
			A0	C / D	B1	R/W
			A1	C / D	B1	R/W
			A1	A / B
				A / B	B2	D/I
	RD			RD	B2	D/I
	RD			RD
	IORQ			IORQ	B3	RST
	M1			M1	B4	CS1
				INT	B4	CS1
	INT
					B5	CS2
						VDD
						VSS
						VLC
		Figure 14 Example of Connection to Z80A

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Contents USER’S Manual AN.No.G1216B1N000-3D0ECopyright 1993 by Seiko Instruments Inc Contents General Power supply voltage +80 Temperature StorageSymbol Conditions Min Typ Max Unit Input High Voltage∅ = 25 C Vopr=13.0 Contrast Min Typ Max Unit Remark25 C Vopr=13.0 Viewing angle 25 C Vopr=13.0AN.No.G1216B1N000-3D0E Definition of response time −20 To +70 Storage temp. rangeChips=20 LedaNumber of LED LedcDB2 DB0DB1 DB3V c, V d, V f Circuit ConfigurationCS2 CS1 CS R/W FRMMSB LSBBusy Page COM3 COM1COM2 COM4Operational Amplifier Bias R2= 9 4 R1= 5 R1 CS1 CS2 Operating InstructionsMPU To DB7 450140 Test point RL = 2.4 k = 11 kReset time Rise time 200D/I FunctionDetailed explanation Display ON/OFF Code Display start line=0 Display start line=1 AN.No.G1216B1N000-3D0E Display start line CodeDB7 DB0 Display start line =2 Display start line=3Display Data RAM Address Configuration AN.No.G1216B1N000-3D0E Address page set CodeReset =1.2 k Ω Voltage V opr 13.5 13.0 12.5 11.5 10.5=10 k Ω Variable resistor=Allowable LED forward current a =Input voltage power voltageV=LED forward voltage Leda LedcD0 to D7 A0 to A7 DB0 to DB7 A0 to A15 Decoder MPU Connection DiagramZ80 PIO Iorq RST CS1Precautions 9, 11, 12, 17, 18, 19 11, 12, 1710, 16, 17 LC drive voltageSeiko Instruments Inc