Разводка
шины PCI.
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Назад Титульный Далее >>>
Автор: Кравченко К.В.
E-mail: kkbweb@mail.ru
Сайт: www.kkbweb.narod.ru
PCI (Peripheral Component Inconnect – соединение внешних
компонентов). Этот интерфейс поддерживает тактовую частоту до 33МГц (вариант PCI
2.1 – до 66 МГц), имеет пиковую пропускную способность до 132 Мбайт/с (264
Мбайт/с для 32 разрядных и 528 Мбайт/с для 64-разрядных данных на частоте 66
МГц).
Конструктивно разъем состоит из двух следующих подряд
секций по 64 контакта. Внутри второй секции имеется пластмассовая поперечная
перегородка (ключ) для предотвращения неправильной установки карт. Разъемы и
карты к ним поддерживают уровни сигналов либо 5В, либо 3,3В, либо оба уровня
(универсальные).
Интерфейс обеспечивает поддержку Bus Mastering и систему
автоматической конфигурации компонентов при установке (Plug-and-Play).
PCI – является сейчас самым распространенным и
универсальным интерфейсом, но начиная с середины 2004 года он начнет уступать
место более скоростной PCI Extreme.
Разница между платами для шины PCI на 5 и 3 вольта
Pin
|
+5V
|
+3.3V
|
Universal
|
Description
|
B1
|
-12V
|
|
|
-12 VDC
|
B2
|
TCK
|
|
|
Test Clock
|
B3
|
GND
|
|
|
Ground
|
B4
|
TDO
|
|
|
Test Data Output
|
B5
|
+5V
|
|
|
+5 VDC
|
B6
|
+5V
|
|
|
+5 VDC
|
B7
|
INTB
|
|
|
Interrupt B
|
B8
|
INTD
|
|
|
Interrupt D
|
B9
|
PRSNT1
|
|
|
Reserved
|
B10
|
RES
|
|
|
+V I/O (+5 V or +3.3 V)
|
B11
|
PRSNT2
|
|
|
??
|
B12
|
GND
|
(OPEN)
|
(OPEN)
|
Ground or Open (Key)
|
B13
|
GND
|
(OPEN)
|
(OPEN)
|
Ground or Open (Key)
|
B14
|
RES
|
|
|
Reserved VDC
|
B15
|
GND
|
|
|
Reset
|
B16
|
CLK
|
|
|
Clock
|
B17
|
GND
|
|
|
Ground
|
B18
|
REQ
|
|
|
Request
|
B19
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
B20
|
AD31
|
|
|
Address/Data 31
|
B21
|
AD29
|
|
|
Address/Data 29
|
B22
|
GND
|
|
|
Ground
|
B23
|
AD27
|
|
|
Address/Data 27
|
B24
|
AD25
|
|
|
Address/Data 25
|
B25
|
+3.3V
|
|
|
+3.3VDC
|
B26
|
C/BE3
|
|
|
Command, Byte Enable 3
|
B27
|
AD23
|
|
|
Address/Data 23
|
B28
|
GND
|
|
|
Ground
|
B29
|
AD21
|
|
|
Address/Data 21
|
B30
|
AD19
|
|
|
Address/Data 19
|
B31
|
+3.3V
|
|
|
+3.3 VDC
|
B32
|
AD17
|
|
|
Address/Data 17
|
B33
|
C/BE2
|
|
|
Command, Byte Enable 2
|
B34
|
GND13
|
|
|
Ground
|
B35
|
IRDY
|
|
|
Initiator Ready
|
B36
|
+3.3V06
|
|
|
+3.3 VDC
|
B37
|
DEVSEL
|
|
|
Device Select
|
B38
|
GND16
|
|
|
Ground
|
B39
|
LOCK
|
|
|
Lock bus
|
B40
|
PERR
|
|
|
Parity Error
|
B41
|
+3.3V08
|
|
|
+3.3 VDC
|
B42
|
SERR
|
|
|
System Error
|
B43
|
+3.3V09
|
|
|
+3.3 VDC
|
B44
|
C/BE1
|
|
|
Command, Byte Enable 1
|
B45
|
AD14
|
|
|
Address/Data 14
|
B46
|
GND18
|
|
|
Ground
|
B47
|
AD12
|
|
|
Address/Data 12
|
B48
|
AD10
|
|
|
Address/Data 10
|
B49
|
GND20
|
|
|
Ground
|
B50
|
(OPEN)
|
GND
|
(OPEN)
|
Ground or Open (Key)
|
B51
|
(OPEN)
|
GND
|
(OPEN)
|
Ground or Open (Key)
|
B52
|
AD8
|
|
|
Address/Data 8
|
B53
|
AD7
|
|
|
Address/Data 7
|
B54
|
+3.3V12
|
|
|
+3.3 VDC
|
B55
|
AD5
|
|
|
Address/Data 5
|
B56
|
AD3
|
|
|
Address/Data 3
|
B57
|
GND22
|
|
|
Ground
|
B58
|
AD1
|
|
|
Address/Data 1
|
B59
|
VCC08
|
|
|
+5 VDC
|
B60
|
ACK64
|
|
|
Acknowledge 64 bit ???
|
B61
|
VCC10
|
|
|
+5 VDC
|
B62
|
VCC12
|
|
|
+5 VDC
|
|
|
|
|
|
B63
|
RES
|
|
|
Reserved
|
B64
|
GND
|
|
|
Ground
|
B65
|
C/BE[6]#
|
|
|
Command, Byte Enable 6
|
B66
|
C/BE[4]#
|
|
|
Command, Byte Enable 4
|
B67
|
GND
|
|
|
Ground
|
B68
|
AD63
|
|
|
Address/Data 63
|
B69
|
AD61
|
|
|
Address/Data 61
|
B70
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
B71
|
AD59
|
|
|
Address/Data 59
|
B72
|
AD57
|
|
|
Address/Data 57
|
B73
|
GND
|
|
|
Ground
|
B74
|
AD55
|
|
|
Address/Data 55
|
B75
|
AD53
|
|
|
Address/Data 53
|
B76
|
GND
|
|
|
Ground
|
B77
|
AD51
|
|
|
Address/Data 51
|
B78
|
AD49
|
|
|
Address/Data 49
|
B79
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
B80
|
AD47
|
|
|
Address/Data 47
|
B81
|
AD45
|
|
|
Address/Data 45
|
B82
|
GND
|
|
|
Ground
|
B83
|
AD43
|
|
|
Address/Data 43
|
B84
|
AD41
|
|
|
Address/Data 41
|
B85
|
GND
|
|
|
Ground
|
B86
|
AD39
|
|
|
Address/Data 39
|
B87
|
AD37
|
|
|
Address/Data 37
|
B88
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
B89
|
AD35
|
|
|
Address/Data 35
|
B90
|
AD33
|
|
|
Address/Data 33
|
B91
|
GND
|
|
|
Ground
|
B92
|
RES
|
|
|
Reserved
|
B93
|
RES
|
|
|
Reserved
|
B94
|
GND
|
|
|
Ground
|
|
Pin
|
+5V
|
+3.3V
|
Universal
|
Description
|
A1
|
TRST
|
|
|
Test Logic Reset
|
A2
|
+12V
|
|
|
+12 VDC
|
A3
|
TMS
|
|
|
Test Mde Select
|
A4
|
TDI
|
|
|
Test Data Input
|
A5
|
+5V
|
|
|
+5 VDC
|
A6
|
INTA
|
|
|
Interrupt A
|
A7
|
INTC
|
|
|
Interrupt C
|
A8
|
+5V
|
|
|
+5 VDC
|
A9
|
RESV01
|
|
|
Reserved VDC
|
A10
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
A11
|
RESV03
|
|
|
Reserved VDC
|
A12
|
GND03
|
(OPEN)
|
(OPEN)
|
Ground or Open (Key)
|
A13
|
GND05
|
(OPEN)
|
(OPEN)
|
Ground or Open (Key)
|
A14
|
RESV05
|
|
|
Reserved VDC
|
A15
|
RESET
|
|
|
Reset
|
A16
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
A17
|
GNT
|
|
|
Grant PCI use
|
A18
|
GND08
|
|
|
Ground
|
A19
|
RESV06
|
|
|
Reserved VDC
|
A20
|
AD30
|
|
|
Address/Data 30
|
A21
|
+3.3V01
|
|
|
+3.3 VDC
|
A22
|
AD28
|
|
|
Address/Data 28
|
A23
|
AD26
|
|
|
Address/Data 26
|
A24
|
GND10
|
|
|
Ground
|
A25
|
AD24
|
|
|
Address/Data 24
|
A26
|
IDSEL
|
|
|
Initialization Device Select
|
A27
|
+3.3V03
|
|
|
+3.3 VDC
|
A28
|
AD22
|
|
|
Address/Data 22
|
A29
|
AD20
|
|
|
Address/Data 20
|
A30
|
GND12
|
|
|
Ground
|
A31
|
AD18
|
|
|
Address/Data 18
|
A32
|
AD16
|
|
|
Address/Data 16
|
A33
|
+3.3V05
|
|
|
+3.3 VDC
|
A34
|
FRAME
|
|
|
Address or Data phase
|
A35
|
GND14
|
|
|
Ground
|
A36
|
TRDY
|
|
|
Target Ready
|
A37
|
GND15
|
|
|
Ground
|
A38
|
STOP
|
|
|
Stop Transfer Cycle
|
A39
|
+3.3V07
|
|
|
+3.3 VDC
|
A40
|
SDONE
|
|
|
Snoop Done
|
A41
|
SBO
|
|
|
Snoop Backoff
|
A42
|
GND17
|
|
|
Ground
|
A43
|
PAR
|
|
|
Parity
|
A44
|
AD15
|
|
|
Address/Data 15
|
A45
|
+3.3V10
|
|
|
+3.3 VDC
|
A46
|
AD13
|
|
|
Address/Data 13
|
A47
|
AD11
|
|
|
Address/Data 11
|
A48
|
GND19
|
|
|
Ground
|
A49
|
AD9
|
|
|
Address/Data 9
|
A50
|
|
|
|
|
A51
|
|
|
|
|
A52
|
C/BE0
|
|
|
Command, Byte Enable 0
|
A53
|
+3.3V11
|
|
|
+3.3 VDC
|
A54
|
AD6
|
|
|
Address/Data 6
|
A55
|
AD4
|
|
|
Address/Data 4
|
A56
|
GND21
|
|
|
Ground
|
A57
|
AD2
|
|
|
Address/Data 2
|
A58
|
AD0
|
|
|
Address/Data 0
|
A59
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
A60
|
REQ64
|
|
|
Request 64 bit ???
|
A61
|
VCC11
|
|
|
+5 VDC
|
A62
|
VCC13
|
|
|
+5 VDC
|
|
|
|
|
|
A63
|
GND
|
|
|
Ground
|
A64
|
C/BE[7]#
|
|
|
Command, Byte Enable 7
|
A65
|
C/BE[5]#
|
|
|
Command, Byte Enable 5
|
A66
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
A67
|
PAR64
|
|
|
Parity 64 ???
|
A68
|
AD62
|
|
|
Address/Data 62
|
A69
|
GND
|
|
|
Ground
|
A70
|
AD60
|
|
|
Address/Data 60
|
A71
|
AD58
|
|
|
Address/Data 58
|
A72
|
GND
|
|
|
Ground
|
A73
|
AD56
|
|
|
Address/Data 56
|
A74
|
AD54
|
|
|
Address/Data 54
|
A75
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
A76
|
AD52
|
|
|
Address/Data 52
|
A77
|
AD50
|
|
|
Address/Data 50
|
A78
|
GND
|
|
|
Ground
|
A79
|
AD48
|
|
|
Address/Data 48
|
A80
|
AD46
|
|
|
Address/Data 46
|
A81
|
GND
|
|
|
Ground
|
A82
|
AD44
|
|
|
Address/Data 44
|
A83
|
AD42
|
|
|
Address/Data 42
|
A84
|
+5V
|
+3.3V
|
Signal Rail
|
+V I/O (+5 V or +3.3 V)
|
A85
|
AD40
|
|
|
Address/Data 40
|
A86
|
AD38
|
|
|
Address/Data 38
|
A87
|
GND
|
|
|
Ground
|
A88
|
AD36
|
|
|
Address/Data 36
|
A89
|
AD34
|
|
|
Address/Data 34
|
A90
|
GND
|
|
|
Ground
|
A91
|
AD32
|
|
|
Address/Data 32
|
A92
|
RES
|
|
|
Reserved
|
A93
|
GND
|
|
|
Ground
|
A94
|
RES
|
|
|
Reserved
|
|
Начало документа
<<<
Назад Титульный Далее >>>
ККВ страница создана
18.11.2003 г.
© 2002-2003г. Кравченко Кирилл Васильевич (ККВ)