PEX 8112RDK-F Hardware Reference Manual for Board Revision 1.0, Version 1.1
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© 2008, PLX Technology, Inc. All rights reserved.
4.
M
ECHANICAL
A
RCHITECTURE
4.1
Monitoring Point, Indicator, Control, and DIP Switch Summary
This section summarizes the interfaces available on the PEX 8112RDK-F for controlling and monitoring PEX 8112
performance.
4.1.1
Monitoring Points
Six ground post holes, scattered across the PEX 8112RDK-F to provide probe reference points
Voltages to the PEX 8112 can be monitored at the following locations:
TP12 (1.5 VCC)
TP13 (PCI Express 3.3 VCC)
TP14 (PCI Express 5 VCC)
PCI bus power can be monitored at the hard disk power connector (JP1)
J7 – Test points for TCK, TDI, TDO, and TMS
J9, J10 – footprints of mictor connectors, for PCI bus signal probing.
4.1.2
Indicators
GPIO indicators – LED[3:0]
4.1.3
Controls
Table 2. PEX 8112RDK-F Default Jumper Settings
Jumper
Factory Setting
Description
J2
OPEN
Pull-up WP# on the serial EEPROM
JP2
2-3
Connect VI/O to 5V
JP3
OPEN
Pull-up (1-2) or pull-down (2-3) GPIO0
JP4
OPEN
Pull-up (1-2) or pull-down (2-3) GPIO1
JP5
OPEN
Pull-up (1-2) or pull-down (2-3) GPIO2
JP6
OPEN
Pull-up (1-2) or pull-down (2-3) GPIO3
JP9
OPEN
Do not ground INTC#
JP10
OPEN
Do not ground INTD#
JP11
OPEN
Do not ground INTB#
JP12
OPEN
Do not ground INTA#
JP13 1-2
Connect
M66EN
JP14
1-2
Pull-up the buffer gate input connected to GPIO2
JP15
1-2
Pull-up the buffer gate input connected to GPIO3
JP16
2-3
FF-OE# drives the buffer OE#
JP17
OPEN
Do not ground BAR0ENB#
Note: BAR0ENB# can be set by connecting JP17, or programmed through the serial
EEPROM.
J11
Not installed
Hard wire jump 1-2 of J11 for enabling internal PCI arbiter of the PEX 8112
JP8
Not installed
JTAG port of U6
JP18
Not installed
Hard wire jump 3-5 and 4-6 of JP18 for use of the internal PCI arbiter of PEX 8112