Intel ETX CD manual Parallel Port / Floppy Interfaces

4 ETX® connectors

25	LCDDO9	26	LCDDO10
27	GND	28	GND
29	LCDDO4	30	LCDDO7
31	LCDDO5	32	LCDDO6
33	GND	34	GND
35	LCDDO1	36	LCDDO3
37	LCDDO0	38	LCDDO2
39	VCC *	40	VCC *
41	JILI_DAT	42	LTGIO0**
43	JILI_CLK	44	BLON#
45	BIASON**	46	DIGON
47	COMP**	48	Y**
49	SYNC**	50	C**

Notes: *To protect external power lines of peripheral devices, make sure that:

-the wires have the right diameter to withstand the maximum available current

-the enclosure of the peripheral device fulfils the fire-protection requirements of IEC/EN60950. **This signal is not supported on the ETX®-CD.

Parallel Port / Floppy Interfaces

You can configure ETX®-CD’s parallel port interfaces as conventional PC parallel ports or as an interface for a floppy-disk drive. You can select the operating mode in the BIOS settings and by a hardware mode- select pin.

If Pin X3-51 (LPT/FLPY#) is grounded at boot time, the floppy support mode is selected. If the pin is left floating or is held high, parallel-port mode is selected. The mode selection is determined at boot time. It cannot be changed until the next boot cycle.

Parallel Port Mode Pinout

Floppy Support Mode Pinout

Pin	Signal	Pin	Signal	Pin	Signal	Pin	Signal
51	LPT/FLPY#	52	RESERVED	51	LPT/FLPY#	52	RESERVED
53	VCC *	54	GND	53	VCC *	54	GND
55	STB#	56	AFD#	55	RESERVED	56	DENSEL
57	RESERVED	58	PD7	57	RESERVED	58	RESERVED
59	IRRX	60	ERR#	59	IRRX	60	HDSEL#
61	IRTX	62	PD6	61	IRTX	62	RESERVED
63	RXD2	64	INIT#	63	RXD2	64	DIR#
65	GND	66	GND	65	GND	66	GND
67	RTS2#	68	PD5	67	RTS2#	68	RESERVED
69	DTR2#	70	SLIN#	69	DTR2#	70	STEP#
71	DCD2#	72	PD4	71	DCD2#	72	DSKCHG#
73	DSR2#	74	PD3	73	DSR2#	74	RDATA#
75	CTS2#	76	PD2	75	CTS2#	76	WP#
77	TXD2	78	PD1	77	TXD2	78	TRK0#
79	RI2#	80	PD0	79	RI2#	80	INDEX#
81	VCC *	82	VCC*	81	VCC *	82	VCC *
83	RXD1	84	ACK#	83	RXD1	84	DRV
85	RTS1#	86	BUSY	85	RTS1#	86	MOT
87	DTR1#	88	PE	87	DTR1#	88	WDATA#

Kontron User's Guide ETX CD 27