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PEX 8648-AA
PLX PEX 8648-AA Manuals
Manuals and User Guides for PLX PEX 8648-AA. We have
1
PLX PEX 8648-AA manual available for free PDF download: Hardware Reference Manual
PLX PEX 8648-AA Hardware Reference Manual (64 pages)
Rapid Development Kit
Brand:
PLX
| Category:
Microcontrollers
| Size: 1 MB
Table of Contents
Table of Contents
3
Preface
5
Notice
5
About this Manual
5
Revision History
5
1 General Information
6
Figure 1. PEX 8648 RDK Base Board Component Layout
6
PEX 8648 Switch Features
7
PEX 8648 RDK Base Board Features
7
2 System Architecture
8
Figure 2. PEX 8648 RDK Being Used in a PC
8
Figure 3. PEX 8648 RDK Base Board Component Layout
9
3 Hardware Architecture
10
PCI Express Port Configuration
10
Table 1. PEX 8648 RDK Base Board Port Configurations
11
Figure 4. Station 0, X4 up and X4X4X4 down
12
Figure 5. Station 0, X16 up
12
Figure 6. Station 0, X8 up and X8 down (Factory Default)
13
Figure 7. Station 0, X8 up and X4X4 down
13
Figure 8. Station 0, X8 up and X8 NT
14
Figure 9. Station 0, X4 UP, X4 NT, and X4X4 down
14
Figure 10. Station 1, X4X4X4X4 down
15
Figure 11. Station 1, X16 down
15
Figure 12. Station 1, X8X8 down (Factory Default)
16
Figure 13. Station 1, X8X4X4 down
16
Non-Transparent Operation
17
PCI Express Hot-Plug Circuitry
17
Figure 14. PEX 8648 RDK Base Board PCI Express Hot-Plug Circuitry
18
Reference Clock Circuitry
19
Figure 15. PEX 8648 RDK Base Board Reference Clock Circuitry
20
Port Configuration and Status LED Indicators
21
Figure 16. PEX 8648 RDK Base Board Port Configuration and Status LED Indicators
21
NT PORT LED Indicators
22
PORT STATUS LED Indicators
22
Table 2. PEX 8648 Switch Port Status LED On/Off Patterns, by State
22
UP PORT LED Indicators
22
Hardware Strapping Balls
23
Figure 17. PEX 8648 RDK Base Board Hardware Strapping DIP Switches - SW1, SW11, SW4, SW5, SW9, SW6, SW2, and SW10, Default Settings
23
Table 3. PEX 8648 RDK Base Board Hardware Strapping DIP Switches - SW1, SW11, SW4, SW5, SW9, SW6, SW2, and SW10
24
Power Circuitry
25
Figure 18. PEX 8648 RDK Base Board Power Circuitry
25
Reset Circuitry
26
Serial EEPROM Interface (U2)
26
JTAG Interface (JP7)
27
I 2 C Interface (JP8 and JP9)
27
Figure 19. JTAG Header (Top View)
27
Figure 20. I C Headers (Top View)
27
Device-Specific Sideband Signals
28
Fatal_Err# (Tpv22, Ds1)
28
Pex_Inta# (Tpv21, Ds2)
28
Pex_Nt_Reset# (Tpv49)
28
Figure 21. TPV21, TPV22, DS1, and DS2 Placement on PEX 8648 RDK Base Board
28
4 Base Board Mechanicals/Component Placement
29
Figure 22. PEX 8648 RDK Base Board Mechanical Outline
29
Figure 23. PEX 8648 RDK Base Board Dimensions
29
Monitoring Point, LED Indicator, and Control Summary
30
Monitoring Points
30
Table 4. PEX 8648 RDK Base Board Monitoring Points
30
LED Indicators
31
Table 5. PEX 8648 RDK Base Board LED Indicators
31
Controls
32
Table 6. PEX 8648 RDK Base Board Controls
32
Board Layout Information
33
4.2.1 Trace Routing Design Rules
33
4.2.2 Power De-Coupling
33
Figure 24. De-Coupling Capacitor Footprints
33
Figure 25. PEX 8648 RDK Base Board Power Ball and Perimeter De-Coupling Capacitor Footprints (Reverse Screen)
34
PCB Layer Stackup
35
Figure 26. PEX 8648 RDK Base Board External PCB Layer Stackup Report
35
5 References
36
6 Bill of Materials & Schematics
37
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