Sharp SF-1120, SF-1020 service manual Txd, Dsr, Res, Stby, Xtal, Avss, Spm-Ont, Ddmpwm, Ddmdir, Sim

4. Pin arrangement (FP-64A: Top view)

P50/TXD

P51/RXD

P52/SCK

RES

NMI

VCC

STBY

VSS

XTAL

EXTAL MD1 MD0

AVSS P70/AN0 P71/AN1 P72/AN2

1		48
2		47
3		46
4		45
5		44
6		43
7		42
8	FP-64A	41
9		40
10		39
11		38
12		37
13		36
14		35
15		34
16		33

P10/A0

P11/A1

P12/A2

P13/A3

P14/A4

P15/A5

P16/A6

P17/A7

VSS P20/A8 P21/A9 P22/A10 P23/A11 P24/A12 P25/A13

P26/A14

5. ADU PWB Port List

Pin	Used	Sig. Name	I/O	Active	Note
No.	Port
1	P5-0	TXD	O		Copier UART signal
2	P5-1	RXD	I		Copier UART signal
3	P5-2	DSR	O		Copier UART signal
4	/RES				External reset pin
5	/NMI				Non-maskable pin
					(H-lev. fixed)
6	VCC				Power (VD)
7	/STBY				Standby pin (H-lev. fixed)
8	VSS				Power (GND)
9	XTAL				Clock pin (8MHa)
10	EXTAL				Clock pin (8MHz)
11	MD1				CPU mode select pin
12	MD2				CPU mode select pin
13	AVSS				A/D power (VD)
14	P7-0	DPHPS1	I	H	Alignment plate home
					position sensor signal
15	P7-1	DPHPS2	I	H	Alignment plate home
					position sensor signal
16	P7-2	DPED1	I	H	Paper sensor 1
17	P7-3	DPPD1	I	H	Paper entry sensor
18	P7-4	DPED2	I	H	Paper sensor 2
19	P7-5	DPOD	I	H	Paper exit sensor

Pin	Used	Sig. Name	I/O	Active	Note
No.	Port
20	P7-6	DTR	I		Copier UART signal
21	P7-7	—		NC
22	AVCC				A/D power (GND)
23	P6-0	SPM-ONT	O	L	Stepping motor output signal
24	P6-1	—		NC
25	P6-2	DPTD	I		DDM rotary encoder signal
26	P6-3	—		NC
27	P6-4	DDM_PWM	O	H	DDM drive pulse signal
28	P6-5	DDM_DIR	O	H/L	DDM direction select signal
29	P6-6	—		NC
30	P6-7	SIM	I		Not Used
31	VCC				Power (VD)
32	A15				Address signal
33	A14				Address signal
34	A13				Address signal
35	A12				Address signal
36	A11				Address signal
37	A10				Address signal
38	A9				Address signal
39	A8				Address signal
40	VSS				Power (VD)
41	A7				Address signal

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