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Дата изменения: Sat Jul 7 00:58:36 2001
Дата индексирования: Sat Dec 22 15:20:00 2007
Кодировка:
Поисковые слова: sojourner
HwB: NuBus Connector (Offline)

GoTo ConnectorCONNECTORGoTo Main

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.

UNKNOWN CONNECTOR (at the card)
UNKNOWN CONNECTOR (at the computer)

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

Row A

Pin Name Description
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

Pin Name Description
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

Pin Name Description
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<31:0>

Address/Data bits 31 to 0.

PFW

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

ARB<3:0>

Arbitration bits 3 to 0; arbitrates system mastership.

ID<3:0>

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 жgren, Karsten Wenke, Michael Van den Acker, Godel?

Source:
Apple Tech Info Library 2194: Macintosh II NuBus Slots, Pinout at Apple TIL homepage

Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-07