Avalue Technology HPS-621UTA, Quick Reference Manual

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HPS-621UTA
16 HPS-621UTA Quick Reference Guide
2.3 HPM-621UA Jumper and Connector List
You can configure your board to match the needs of your application by setting jumpers. A
jumper is the simplest kind of electric switch.
It consists of two metal pins and a small metal clip (often protected by a plastic cover) that
slides over the pins to connect them. To “close” a jumper you connect the pins with the clip.
To “open” a jumper you remove the clip. Sometimes a jumper will have three pins, labeled 1,
2, and 3. In this case, you would connect either two pins.
The jumper settings are schematically depicted in this manual as follows:
A pair of needle-nose pliers may be helpful when working with jumpers.
Connectors on the board are linked to external devices such as hard disk drives, a
keyboard, or floppy drives. In addition, the board has a number of jumpers that allow you to
configure your system to suit your application.
If you have any doubts about the best hardware configuration for your application, contact
your local distributor or sales representative before you make any changes.
The following tables list the function of each of the board
’s jumpers and connectors.
Jumpers
Label Function Note
JME_RCVR1 ME Firmware Recovery 3 x 1 header, pitch 2.00mm
JME1
Flash Descriptor Security override 3 x 1 header, pitch 2.00mm
JBMC_DB1 BMC strap setting 4 x 2 header, pitch 2.00mm
JCMOS1 Clear CMOS 3 x 1 header, pitch 2.00mm
JBMC_PST1
CPLD strap setting for BMC
Present or not
2 x 1 header, pitch 2.00mm
JCPLD_JTAG_EN1 CPLD JTAG setting 2 x 1 header, pitch 2.00mm
JCPLD_DEBUG1 CPLD DEBUG header 2 x 1 header, pitch 2.00mm
Connectors
Label Function Note
SYS_FAN1 System fan connector 1 4 x 1 wafer, pitch 2.54mm