Eiki LC-NB3E service manual Control Port Functions, System Control & I/O Port Table IC801

■Control Port Functions

●System Control & I/O Port Table (IC801)

Pin No.	Name	Function Name	Function	I/O	Action
1	PE5/D5	POWER_SW	Power_SW	O	H: On
2	PE6/D6	SYS SW	Peripheral IC power supply SW	O	L: on
3	PE7/D7	LAMP_SW	Lamp LED	O	H: On
4	PD0/D8	DATA0	Data Bus 0	I/O	-
5	PD1/D9	DATA1	Data Bus 1	I/O	-
6	PD2/D10	DATA2	Data Bus 2	I/O	-
7	PD3/D11	DATA3	Data Bus 3	I/O	-
8	PD4/D12	DATA4	Data Bus 4	I/O	-
9	PD5/D13	DATA5	Data Bus 5	I/O	-
10	PD6/D14	DATA6	Data Bus 6	I/O	-
11	PD7/D15	DATA7	Data Bus 7	I/O	-
12	CVCC	CVCC	Power supply	-	-
13	PC0/A0	ADDRESS0	Address Bus 0	O	-
14	VSS	VSS	Vss	-	-
15	PC1/A1	ADDRESS1	Address Bus 1	O	-
16	PC2/A2	ADDRESS2	Address Bus 2	O	-
17	PC3/A3	ADDRESS3	Address Bus 3	O	-
18	PC4/A4	ADDRESS4	Address Bus 4	O	-
19	PC5/A5	ADDRESS5	Address Bus 5	O	-
20	PC6/A6	ADDRESS6	Address Bus 6	O	-
21	PC7/A7	ADDRESS7	Address Bus 7	O	-
22	PB0/A8/TIOCA3	ADDRESS8	Address Bus 8	O	-
23	PB1/A9/TIOCB3	ADDRESS9	Address Bus 9	O	-
24	PB2/A10/TIOCC3	ADDRESS10	Address Bus 10	O	-
25	PB3/A11/TIOCD3	ADDRESS11	Address Bus 11	O	-
26	PB4/A12/TIOCA4	ADDRESS12	Address Bus 12	O	-
27	PB5/A13/TIOCB4	ADDRESS13	Address Bus 13	O	-
28	PB6/A14/TIOCA5	ADDRESS14	Address Bus 14	O	-
29	PB7/A15/TIOCB5	ZOOM +	Zoom +	O	L: Zoom +
30	PA0/A16	ZOOM -	Zoom -	O	L: Zoom -
31	PA1/A17/TxD2	Tx	RS232C TxD	O	L: active
32	PA2/A18/RxD2	Rx	RS232C RxD	I	L: active
33	PA3/A19/SCK2	FOCUS +	Focus +	O	L: Focus +
34	P10/TIOCA0/A20	FOCUS -	Focus -	O	L: Focus -
35	P11/TIOCB0/A21	R/C	Remote control signal input	I	L: active
36	P12/TIOCC0/TCLKA/A22	USB_RESET	USB Reset signal output	O	L: active
37	P13/TIOCD0/TCLKB/A23	USB_BRST	USB_BRST	O	L: On”
38	P14/TIOCA1/IRQ0	SCLK	Serial clock output	O	H: active
39	P15/TIOCB1/TCLKC	BLAST_AC	Lamp Ballast control signal	O	H: on
40	P16/TIOCA2/IRQ1	TXD_SW	TXD_SW	O	H: PW-Main CPU
41	P17/TIOCB2/TCLKD	FAN ON/OFF	Fan Drive output	O	H: on
42	AVSS	Avss	A/D ground	-	-
43	P97/DA1	PIXEL WRITE	PIXEL write	I	L: PW write
44	P96/DA0	TEMP_DET	TEMP DET	I	L: Temperature abnormal
45	P47/AN7	OPT2	Option input	I	L: XGA H: SVGA
46	P46/AN6		Not used	I
47	P45/AN5	LAMP_ERR	Lamp Error	I	H: Lamp not lit
48	P44/AN4	POWER_FAIL	Power Fail (Abnormal less than 2V)	I	Abnormal less that 1V
49	P43/AN3	OPT1	Destination option	I
50	P42/AN2	KEY3	Key Input3 (A/D Input)	I
51	P41/AN1	KEY2	Key Input2 (A/D Input)	I
52	P40/AN0	KEY1	Key Input1 (A/D Input)	I
53	Vref	Vref	Reference voltage for analog	-	-
54	AVCC	AVCC	A/D power supply	-	-
55	MD0	MD0	Operation mode control 0	I	Fixed L
56	MD1	MD1	Operation mode control 1	I	Fixed H
57	OSC2	OSC2	Sub-clock output (Not used)	O	open
58	OSC1	OSC1	Sub-clock output (Not used)	I	Connected to GND
59	RES	RESET	Reset input	I	Reset L to H
60	NMI	NMI	Non-maskable input (not used)	I	Fixed H
61	STBY	STBY	Stand-by	I	-
62	VCC	VCC	Vcc	-	-
63	XTAL	XTAL	Oscillator input	I	-
64	VSS	VSS	GND	-	-
65	EXTAL	EXTAL	Oscillator output	O	-
66	FWE	FEW	Write enable input for Flash ROM	I	H: Enable

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