ABC-bus

Available at Luxor ABC 80.

Pinout

   +-+
 a | +-+ b
 1 |o o| 1
 2 |o o| 2
 3 |o o| 3
 4 |o o| 4
 5 |o o| 5
 6 |o o| 6
 7 |o o| 7
 8 |o o| 8
 9 |o o| 9
10 |o o| 10
11 |o o| 11
12 |o o| 12
13 |o o| 13
14 |o o| 14
15 |o o| 15
16 |o o| 16
17 |o o| 17
18 |o o| 18
19 |o o| 19
20 |o o| 20
21 |o o| 21
22 |o o| 22
23 |o o| 23
24 |o o| 24
25 |o o| 25
26 |o o| 26
27 |o o| 27
28 |o o| 28
29 |o o| 29
30 |o o| 30
31 |o o| 31
32 |o o| 32
   + +-+   (at computer)
   +-+

Pin	Dir	Name	Note
a1		-12V	Max 100mA (incl b1)
a2		0V
a3		/RESIN
a4		GND
a5		/XMEMW
a6		D7	Data bit 7
a7		D6	Data bit 6
a8		D5	Data bit 5
a9		D4	Data bit 4
a10		D3	Data bit 3
a11		D2	Data bit 2
a12		D1	Data bit 1
a13		D0	Data bit 0
a14		n/c
a15		/RST
a16		/STATUS	Input strobs STATUS
a17		/INP	Input strobs INP
a18		/C4	Out strobs C4
a19		/C3	Out strobs C3
a20		/C2	Out strobs C2
a21		/C1	Out strobs C1
a22		/OUT	Out strobs OUT
a23		/CS	Out strobs CS
a24		GND
a25		GND
a26		GND
a27		GND
a28		GND
a29		GND
a30		READY
a31		+5V	Max 250mA (incl b31)
a32		+12V	Max 100mA (incl b32)
b1		-12V	Max 100mA (incl a1)
b2		0V
b3		GND
b4		/XMEMFL
b5		Ø
b6		GND
b7		GND
b8		GND
b9		GND
b10		GND
b11		GND
b12		GND
b13		/INT
b14		A15	Address bit 15
b15		A14	Address bit 14
b16		A13	Address bit 13
b17		A12	Address bit 12
b18		A11	Address bit 11
b19		A10	Address bit 10
b20		A9	Address bit 9
b21		A8	Address bit 8
b22		A7	Address bit 7
b23		A6	Address bit 6
b24		A5	Address bit 5
b25		A4	Address bit 4
b26		A3	Address bit 3
b27		A2	Address bit 2
b28		A1	Address bit 1
b29		A0	Address bit 0
b30		n/c
b31		+5V	Max 250mA (incl a31)
b32		+12V	Max 100mA (incl a32)

Note: Direction is computer relative devices.

Contributors

• Joakim Ögren

Sources

• Luxor ABC 80 servicemanual