Fujitsu D1961 technical manual Floppy interface, Pin assignment of internal ports

Pin assignment of internal ports

Floppy interface

1

Pin	Signal	Pin	Signal
1	GND	18	Step DIR (low asserted)
2	FDHDIN (low asserted)	19	GND
3	GND	20	Step Pulse (low asserted)
4	not connected	21	GND
5	Key	22	Write Data (low asserted)
6	not connected	23	GND
7	GND	24	Write Enable (low asserted)
8	Index (low asserted)	25	GND
9	GND	26	Track 0 (low asserted)
10	Motor A Enable (low	27	GND
	asserted)
11	GND	28	Write Protect (low
			asserted)
12	Drive B Select (low	29	GND
	asserted)
13	GND	30	Read Data (low asserted)
14	Drive A Select (low	31	GND
	asserted)
15	GND	32	Side 1 Select (low
			asserted)
16	Motor B Enable (low	33	GND
	asserted)
17	GND	34	Disk Change (low asserted)

A26361-D1961-Z120-1-7419, edition 2 English - 13