Распиновка разъема NuBus Connector

Распиновка, расположение выводов и внешний вид разъемов и шин:
NuBus

Available on old Apple Macintosh computers and on NeXT computers.
Standard: IEEE 1196, «Nubus-A simple 32-bit backplane bus».
Texas Instruments owns the standard today.

 (at the card)
 (at the computer)

UNKNOWN CONNECTOR at the card.
UNKNOWN CONNECTOR at the computer.

Row A

PinNameDescription

1
-12 V
-12 VDC

2

 

3
/SPV
 

4
/SP
 

5
/TM1
 

6
/AD1
Address/Data 1

7
/AD3
Address/Data 3

8
/AD5
Address/Data 5

9
/AD7
Address/Data 7

10
/AD9
Address/Data 9

11
/AD11
Address/Data 11

12
/AD13
Address/Data 13

13
/AD15
Address/Data 15

14
/AD17
Address/Data 17

15
/AD19
Address/Data 19

16
/AD21
Address/Data 21

17
/AD23
Address/Data 23

18
/AD25
Address/Data 25

19
/AD27
Address/Data 27

20
/AD29
Address/Data 29

21
/AD31
Address/Data 31

22
GND
Ground

23
GND
Ground

24
/ARB1
 

25
/ARB3
 

26
/ID1
 

27
/ID3
 

28
/ACK
 

29
+5 V
+5 VDC

30
/RQST
 

31
/NMRQ
 

32
+12 V
+12 VDC

Row B

PinNameDescription

1
-12 V
-12 VDC

2
GND
Ground

3
GND
Ground

4
+5 V
+5 VDC

5
+5 V
+5 VDC

6
+5 V
+5 VDC

7
+5 V
+5 VDC

8
*
Reserved ?

9
*
Reserved ?

10
*
Reserved ?

11
*
Reserved ?

12
GND
Ground

13
GND
Ground

14
GND
Ground

15
GND
Ground

16
GND
Ground

17
GND
Ground

18
GND
Ground

19
GND
Ground

20
GND
Ground

21
GND
Ground

22
GND
Ground

23
GND
Ground

24
**
Reserved ?

25
**
Reserved ?

26
**
Reserved ?

27
**
Reserved ?

28
+5 V
+5 VDC

29
+5 V
+5 VDC

30
GND
Ground

31
GND
Ground

32
+12 V
 

Row C

PinNameDescription

1
/RESET
Reset

2

 

3
+5 V
+5 VDC

4
+5 V
+5 VDC

5
/TM0
 

6
/AD0
Address/Data 0

7
/AD2
Address/Data 2

8
/AD4
Address/Data 4

9
/AD6
Address/Data 6

10
/AD8
Address/Data 8

11
/AD10
Address/Data 10

12
/AD12
Address/Data 12

13
/AD14
Address/Data 14

14
/AD16
Address/Data 16

15
/AD18
Address/Data 18

16
/AD20
Address/Data 20

17
/AD22
Address/Data 22

18
/AD24
Address/Data 24

19
/AD26
Address/Data 26

20
/AD28
Address/Data 28

21
/AD30
Address/Data 30

22
GND
Ground

23
/PFW
 

24
/ARB0
 

25
/ARB2
 

26
/ID0
 

27
/ID2
 

28
/START
 

29
+5 V
+5 VDC

30
+5 V
+5 VDC

31
GND
Ground

32
/CLK
Clock

+5V

Power to slot; 2 amps per slot maximum continuous.

+12V

Power to slot; 0.25 amps per slot maximum continuous.

-12V

Power to slot; 0.1 amps per slot maximum continuous.

-5.2V

Unused

GND

Power return for +5V, +12V, and -12V

RESET

Open collector signal; card should use to reset circuitry.

SPV

Slot Parity Valid; asserted if card provides parity. Never asserted under Apple NuBus.

SP

Slot Parity; odd parity of AD0-AD3 if SPV asserted.

TM0 — TM1

Transaction modifiers.

AD

Address/Data bits 31 to 0.

PFW

Power Fail Warning given 2ms before AC power is lost.

ARB

Arbitration bits 3 to 0; arbitrates system mastership.

ID

Geographical address 3 to 0; hard-coded to slot.

START

Asserted to indicate an address on AD lines.

ACK

Acknowledge of START cycle.

RQST

Request; asserted to request bus mastership.

NMRQ

Non-master request; used to signal an interrupt.

CLK

Clock. Asymmetrical 10MHz clock; synchronous transactions on NuBus.

Contributor:
Joakim Цgren, Karsten Wenke, Michael Van den Acker, Godel?

Source:
Apple Tech Info Library 2194: Macintosh II NuBus Slots, Pinout til.info.apple.com/tilarchive.nsf/artnum/n2194 at Apple TIL homepage

Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10

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