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