Advantech HMI-640S user manual Floppy drive

4.9.3 Floppy drive

Users can attach up to two floppy disk drives to the CPC-2245N via a SODIMM socket. The CPC-2245N supports any combination of 5.25" (360 KB / 1.2 MB) and/or 3.5" (720 KB / 1.44/2.88 MB) drives.

The following table lists the pin assignments for the floppy disk connector:

Table 4-9: Floppy drive connector

FDD connctr. CN3				FDD connector		CN3
Pin	Signal	Pin	Signal	Pin	Signal	Pin	Signal
1	GND	9	GND	2	High density	141	AUTOFD
3	GND	9	GND	4	N/C
5	GND	10	GND	6	N/C
7	GND	10	GND	8	Index	69	PD0
9	GND	11	GND	10	Motor enable A	66	PD6
11	GND	11	GND	12	Driver select B	64	ACK
13	GND	12	GND	14	Driver select A	143	PD7
15	GND	12	GND	16	Motor enable B	137	BUSY
17	GND	13	GND	18	Direction	71	INIT
19	GND	13	GND	20	Step pulse	72	SLCTIN
21	GND	14	GND	22	Write data	65	PE
23	GND	14	GND	24	Write enable	144	SLCT
25	GND	15	GND	26	Track 0	140	PD1
27	GND	15	GND	28	Write protect	68	PD2
29	GND	16	GND	30	Read data	139	PD3
31	GND	16	GND	32	Select head	142	ERR
33	GND	9	GND	34	Disk change	67	PD4

4 8 HMI-640S User's Manual