Martin Hoffmann-Vetter » Disk I/O

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2040/3040/4040/8050/8250/1001 I/O

	DOS			DC
	Pin	RIOT 1 (020x)	RIOT 2 (028x)	Pin	VIA (004x)	Pin	RRIOT (008x)
CA1	-	-	-	40	READY	-	-
CA2	-	-	-	39	MODE SEL	-	-
PA0	8	IEEE DATA 0 IN	IEEE ATNA	2	E0 IN	2	PI0 OUT
PA1	9	IEEE DATA 1 IN	IEEE NDAC OUT	3	E1 IN	40	PI1 OUT
PA2	10	IEEE DATA 2 IN	IEEE NRFD OUT	4	E2 IN	39	PI2 OUT
PA3	11	IEEE DATA 3 IN	IEEE EOI OUT	5	E3 IN	38	PI3 OUT
PA4	12	IEEE DATA 4 IN	IEEE DAV OUT	6	E4 IN	37	PI4 OUT
PA5	13	IEEE DATA 5 IN	IEEE EOI IN	7	E5 IN	36	PI5 OUT
PA6	14	IEEE DATA 6 IN	IEEE DAV IN	8	E6 IN	35	PI6 OUT
PA7	15	IEEE DATA 7 IN	IEEE ATN IN	9	E7 IN	34	PI7 OUT
CB1	-	-	-	18	ERROR	-	-
CB2	-	-	-	19	R/W SEL	-	-
PB0	24	IEEE DATA 0 OUT	DEV SEL 1	10	TRACK S1A⁴⁾	25	DRV SEL
PB1	23	IEEE DATA 1 OUT	DEV SEL 2	11	TRACK S1B⁴⁾	24	DS0
PB2	22	IEEE DATA 2 OUT	DEV SEL 4	12	TRACK S0A	23	DS1
PB3	21	IEEE DATA 3 OUT	LED DRV 1⁴⁾	13	TRACK S0B	22	DRV WPS
PB4	19	IEEE DATA 4 OUT	LED DRV 0	14	DRV 1 MOTOR⁴⁾	21	DRV HD SEL²⁾
PB5	18	IEEE DATA 5 OUT	LED ERROR	15	DRV 0 MOTOR	-	-
PB6	17	IEEE DATA 6 OUT	IEEE NDAC IN	16	PLLSYN³⁾	18	SYNC¹⁾
PB7	16	IEEE DATA 7 OUT	IEEE NRFD IN	17	SYNC³⁾	-	-

¹⁾ nur x040 (Jumper gegen GND bei 8250LP)
²⁾ nur 8250 und 1001
³⁾ nicht x040
⁴⁾ nicht 1001

9060/9090/8280 I/O

	DOS			DC
	Pin	RIOT 1 (020x)	RIOT 2 (028x)	Pin	VIA⁵⁾ (008x)
CA1	-	-	-	40	SASI REQ
CA2	-	-	-	39	SASI ACK
PA0	8	IEEE DATA 0 IN	IEEE ATNA	2	SASI DATA 0
PA1	9	IEEE DATA 1 IN	IEEE NDAC OUT	3	SASI DATA 1
PA2	10	IEEE DATA 2 IN	IEEE NRFD OUT	4	SASI DATZ 2
PA3	11	IEEE DATA 3 IN	IEEE EOI OUT	5	SASI DATA 3
PA4	12	IEEE DATA 4 IN	IEEE DAV OUT	6	SASI DATA 4
PA5	13	IEEE DATA 5 IN	IEEE EOI IN	7	SASI DATA 5
PA6	14	IEEE DATA 6 IN	IEEE DAV IN	8	SASI DATA 6
PA7	15	IEEE DATA 7 IN	IEEE ATN IN	9	SASI DATA 7
CB1	-	-	-	18	n.c.
CB2	-	-	-	19	ENABLE
PB0	24	IEEE DATA 0 OUT	DEV SEL 1	10	SASI SEL
PB1	23	IEEE DATA 1 OUT	DEV SEL 2	11	SASI RST
PB2	22	IEEE DATA 2 OUT	DEV SEL 4	12	SASI C/D
PB3	21	IEEE DATA 3 OUT	LED DRV 1	13	SASI BUSY
PB4	19	IEEE DATA 4 OUT	LED DRV 0	14	SEL (J14)
PB5	18	IEEE DATA 5 OUT	LED ERROR	15	SEL (J13)
PB6	17	IEEE DATA 6 OUT	IEEE NDAC IN	16	SASI I/O
PB7	16	IEEE DATA 7 OUT	IEEE NRFD IN	17	SASI MSG

⁵⁾ nicht 8280

2031/1541 I/O

	Pin	VIA 1 (180x)		VIA 2 (1C0x)
	Pin	2031	1541	VIA 2 (1C0x)
CA1	40	IEEE ATN	IEC ATN IN	BYTE READY
CA2	39	DEV SEL	n.c.	SOE
PA0	2	IEEE DATA 0	DRV TRK 0⁶⁾	DATA 0
PA1	3	IEEE DATA 1	n.c.	DATA 1
PA2	4	IEEE DATA 2	n.c.	DATA 2
PA3	5	IEEE DATA 3	n.c.	DATA 3
PA4	6	IEEE DATA 4	n.c.	DATA 4
PA5	7	IEEE DATA 5	n.c.	DATA 5
PA6	8	IEEE DATA 6	n.c.	DATA 6
PA7	9	IEEE DATA 7	n.c.	DATA 7
CB1	18	n.c.	n.c.	n.c.
CB2	19	PLL SYN	n.c.	MODE
PB0	10	IEEE ATNA	IEC DATA IN	TRACK STP 1
PB1	11	IEEE NRFD	IEC DATA OUT	TRACK STP 0
PB2	12	IEEE NDAC	IEC CLK IN	DRV MOTOR
PB3	13	IEEE EOI	IEC CLK OUT	LED DRV
PB4	14	T/R	IEC ATNA	DRV WPS
PB5	15	HD SEL	DEV SEL 1	DS 0
PB6	16	IEEE DAV	DEV SEL 2	DS 1
PB7	17	IEEE ATN	IEC ATN IN	SYNC

⁶⁾nur bei 1541C

1571 I/O

	Pin	VIA 1 (180x)	VIA 2 (1C0x)	CIA (400x)
CA1	40	IEC ATN IN	BYTE READY	IEC FAST CLK (SRQ)	CNT
CA2	39	DRV WPS	SOE	IEC FAST DATA	SP
PA0	2	DRV TRK 0	DATA 0	n.c.	PA0
PA1	3	IEC FAST DIR	DATA 1	n.c.	PA1
PA2	4	DRV HD SEL	DATA 2	n.c.	PA2
PA3	5	n.c.	DATA 3	n.c.	PA3
PA4	6	n.c.	DATA 4	n.c.	PA4
PA5	7	1/2 MHZ	DATA 5	n.c.	PA5
PA6	8	IEC ATN OUT	DATA 6	n.c.	PA6
PA7	9	BYTE READY	DATA 7	n.c.	PA7
CB1	18	n.c.	n.c.	-	-
CB2	19	n.c.	MODE	-	-
PB0	10	IEC DATA IN	TRACK STP 1	n.c.	PB0
PB1	11	IEC DATA OUT	TRACK STP 0	n.c.	PB1
PB2	12	IEC CLK IN	DRV MOTOR	n.c.	PB2
PB3	13	IEC CLK OUT	LED DRV	n.c.	PB3
PB4	14	IEC ATNA	DRV WPS	n.c.	PB4
PB5	15	DEV SEL 1	DS 0	n.c.	PB5
PB6	16	DEV SEL 2	DS 1	n.c.	PB6
PB7	17	IEC ATN IN	SYNC	n.c.	PB7

8060/8061/8062 I/O (PHOENIX DISKETTE BOARD)

	Pin	PIA 1 (400x)	PIA 2 (600x)	DMA (800x)	VIA (A00x)
CA1	40	SEQUENCE DONE IN	IEEE ATN INT ???	-	IEEE DAV IN
CA2	39	SEQUENCER ERROR	IEEE ATN INT ???	-	IEEE NRFD OUT
PA0	2	DRV 0 HEAD LOAD	DENSITY SEL 0	-	IEEE DATA 0
PA1	3	DRV 1 HEAD LOAD	DENSITY SEL 1	-	IEEE DATA 1
PA2	4	HEAD NUMBER A	DENSITY SEL 2	-	IEEE DATA 2
PA3	5	HEAD NUMBER B	DENSITY SEL 3	-	IEEE DATA 3
PA4	6	STEP CONTROL 0	DENSITY SEL 4	-	IEEE DATA 4
PA5	7	STEP CONTROL 1	ENABLE AUTO ACKNOWLEDGE	-	IEEE DATA 5
PA6	8	STEP CONTROL 2	GCR/FM	-	IEEE DATA 6
PA7	9	STEP CONTROL 3	FORMAT	-	IEEE DATA 7
CB1	18	n.c.	IEEE EOI ???	-	IEEE NDAC IN
CB2	19	ATN ACK ???	IEEE NRDF LOCK	-	IEEE DAV OUT
PB0	10	DRV 0 TRK 0	n.c.	-	DRV SEL 1
PB1	11	DRV 1 TRK 0	RES SEQ INT/ERR	-	DRV SEL 2
PB2	12	IEEE NDAC IN	LED DRV 0	-	IEEE ATN ???
PB3	13	IEEE NRFD IN	LED DRV 1	-	IEEE DAV IN
PB4	14	DRV 0 WPS	DRV 0 MOTOR	-	IEEE EOI OUT
PB5	15	DRV 1 WPS	DRV 1 MOTOR	-	IEEE NDAC DISABLE
PB6	16	DRV 0 DOOR OPEN	SEQUENCER RESET	-	LISTEN OUT
PB7	17	DRV 1 DOOR OPEN	R/W	-	NMI OUT