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278106-002 Datasheet(PDF) 7 Page - Intel Corporation

Part # 278106-002
Description  PCI-to-PCI Bridge
Download  164 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

278106-002 Datasheet(HTML) 7 Page - Intel Corporation

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Preliminary Datasheet
vii
21150
Figures
1
21150 on the System Board.................................................................................. 2
2
21150 with Option Cards....................................................................................... 3
3
21150 on the System Board.................................................................................. 4
4
21150 Downstream Data Path .............................................................................. 5
5
21150 Pin Assignment ........................................................................................19
6
Flow-Through Posted Memory Write Transaction...............................................31
7
Downstream Delayed Write Transaction.............................................................34
8
Multiple Memory Write Transactions Posted and Initiated as Fast
Back-to-Back Transactions on the Target Bus.................................................................36
9
Nonprefetchable Delayed Read Transaction ......................................................40
10
Prefetchable Delayed Read Transaction.............................................................41
11
Flow-Through Prefetchable Read Transaction....................................................42
12
Configuration Transaction Address Formats .......................................................43
13
Delayed Write Transaction Terminated with Master Abort..................................49
14
Delayed Read Transaction Terminated with Target Abort ..................................52
15
I/O Transaction Forwarding Using Base and Limit Addresses............................56
16
I/O Transaction Forwarding in ISA Mode ............................................................58
17
Memory Transaction Forwarding Using Base and Limit Registers .....................60
18
Secondary Arbiter Example.................................................................................86
19
Example of gpio Clock Mask Implementation on the System Board...................91
20
Clock Mask Load and Shift Timing......................................................................92
21
p_clk and s_clk Relative Timing ..........................................................................95
22
21150 Configuration Space ...............................................................................104
23
PCI Clock Signal AC Parameter Measurements...............................................145
24
PCI Signal Timing Measurement Conditions.....................................................147
25
208-Pin PQFP Package ....................................................................................153
Tables
1
21150 Functional Blocks ....................................................................................... 4
2
Signal Pins ............................................................................................................ 7
3
Signal Types.......................................................................................................... 7
4
Primary PCI Bus Interface Signals ........................................................................ 8
5
Secondary PCI Bus Interface Signals .................................................................11
6
Secondary PCI Bus Interface Signals .................................................................13
7
General-Purpose I/O Interface Signals ...............................................................14
8
Clock Signals.......................................................................................................14
9
Reset Signals ......................................................................................................15
10
Miscellaneous Signals.........................................................................................16
11
JTAG Signals ......................................................................................................17
12
Signal Types........................................................................................................20
13
Numeric Pin Assignments ...................................................................................21
14
Alphabetic Pin Assignments................................................................................24
15
21150 PCI Transactions......................................................................................27
16
Write Transaction Forwarding .............................................................................29
17
Write Transaction Disconnect Address Boundaries ............................................35
18
Read Transaction Prefetching.............................................................................36
19
Read Prefetch Address Boundaries ....................................................................38


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