Eiki LC-X71 LC-X71L service manual Parallel I/O Expander IC4801, TIC81592GP

Control Port Functions

●Parallel I/O Expander (IC4801, TIC81592GP)

Pin No.	Function Name	Function	Polarity	I/O
1	S3.3V	-	-	-
2	XIN	Clock input (14.7456MHz)		I
3	XOUT		Open	O
4	GND	-	-	-
5	S3.3V	-	-
6	D7	Data Bus 7		I/O
7	D6	Data Bus 6		I/O
8	D5	Data Bus 5		I/O
9	D4	Data Bus 4		I/O
10	D3	Data Bus 3		I/O
11	D2	Data Bus 2		I/O
12	D1	Data Bus 1		I/O
13	D0	Data Bus 0		I/O
14	A5	Address 5		I
15	A4	Address 4		I
16	A3	Address 3		I
17	A2	Address 2		I
18	A1	Address 1		I
19	A0	Address 0		I
20	GND	-	-	-
21	SH_WE0	Write signal		I
22	SH_RD	Read signal		I
23	SH_CS6	Chip enable		I
24	EXP_RESET	Reset input signal		I
25	S3.3V	-	-	-
26	GND	-	-	-
27	MODE0	CPU I/F setting		I
28	MODE1	CPU I/F setting		I
29	FOCUS+_EX	Focus Up	L: Active, H: Stop	O
30	FOCUS-_EX	Focus Down	L: Active, H: Stop	O
31	ZOOM+_EX	Zoom Up	L: Active, H: Stop	O
32	ZOOM-_EX	Zoom Down	L: Active, H: Stop	O
33	LENS_DOWN_EX	Lens Shift Down	L: Active, H: Stop	O
34	LENS_UP_EX	Lens Shift Up	L: Active, H: Stop	O
35	LENS_BOT	Detection for bottom limit position of lens	L: Bottom end	I
36	LENS_TOP	Detection for top limit position of lens	L: Top end	I
37	POWER_LED	Power LED Dive	L: High, H: Dim	O
38	READY_LED_EX	Ready LED On/Off	L: On, H: Off	O
39	TEMP_LED_EX	Temp LED On/Off	L: On, H: Off	O
40	LAMP_REP_LED_EX	Lamp Replace lED On/Off	L: On, H: Off	O
41	PJ_UPDATE	Write forcibly for PJ-Net	L: Write	O
42	PLLSTB_EX	Reset for CXD3531		O
43	SH_PW_0	Output Signal SH to PW		O
44	W-SW	Wired RC Detection	L: Wire connected	I
45	SH_CHK_DPRAM	INT Clear for PW	L: Not clear	I
46	(Not used)		L fixed	O
47	(Not used)		L fixed	O
48	C_READY			I
49	(Not used)		L fixed	O
50	GND	-	-	-
51	S3.3V	-	-	-
52	RC_CTL_0	Selects Rear RC Receiver	L: Rear Select	O
53	RC_CTL_1	Selects Front RC Receiver	L:Front Select	O
54	FPGA_HZ	FPGA Hi-Z (DRAM Reset)	H after Config.	O
55	SH_BSY	Prohibits DRAM Access at same time	L: Busy	O
56	LAMP_FAN_PF	Power Fail Detection LAMP_FAN	L: Error	I
57	MOU/CPU_SW_EX	Air Mouse Select	L: Active Mouse	O
58	RC_RESET_EX	Air Mouse IC Reset	Reset: H>L>L	O
59	RCIDSW1_EX	RC code Switch	1,2,3=LLL: Code1
60	RCIDSW2_EX	RC code Switch	1,2,3=HLL:Code2	O
61	RCIDSW3_EX	RC code Switch	1,2,3=HHH:Code8
62	PJ_ON_EX	Mouse Data Switch	L: PJ Net	O
63	CNT2_ON_EX	Mouse Data Switch	H: PJ Net	O
64	PJ_5V_PF	Power Fail Detection PJ_5V	L: Error	I
65	-5V_AV_PF	Power Fail Detection -5V_AV	L: Error	I
66	S5V_AV_PF	Power Fail Detection S5V	L: Error	I
66	MAIN_5V_PF	Power Fail Detection MAIN_5V	L: Error	I

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