Dynamic Engineering PCIe 8L XMC X1 사용자 설명서 - 페이지 6

{카테고리_이름} Dynamic Engineering PCIe 8L XMC X1에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Dynamic Engineering PCIe 8L XMC X1 14 페이지. Pcie 8 lane xmc compatible carrier

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Headers and TestPoints

is used to select the VPWR source for position 0 and 1 respectively. When the

Shunt closes 1-2 – 12V is selected. With 2-3 closed 5V is selected. FET's are used to

provide a low impedance path from the power supplies to VPWR for each position.

Options are in place on the PCB to allow hardwired selections for clients who prefer a

fixed voltage. The headers are not installed when the fixed voltage option is in place.

With pin 2 open VPWR will be open.

J12, 13, are used to select the bezel grounding option. 1-2 selects AC coupled, 2-3

selects DC coupled and open is open. J13 = PCIe Bezel. J12 = XMC bezel.

is an optional header for SMB connection. Pin 1 is data and pin 2 is clock. Both are

pulled up. 3

party tools can be used to see the "innards" of the XMC if the bus is in

use. Usually not needed but handy if you are doing development.

TP1, TP2 are

optional JTAG header/pwr used to connect to the XMC. .025" sq post

header. The pin definitions are in the silk. 1: 3.3V, 2: GND, 1: TMS, 2: TDO, 3: TDI, 4:

TCK, 5: TRST

controls the voltage on 33,67 of P2 when the SCSI connector options are selected.

1-2 selects 3.3V and 2-3 selects ground on those pins. The shunt and traces are rated

for 1A. Not fuse protected.

controls the voltage on 34,68 of P2 when the SCSI connector options are selected.

1-2 selects 3.3V and 2-3 selects ground on those pins. The shunt and traces are rated

for 1A. Not fuse protected.

is an optional power connector to allow for added 12V power to be used by the

PCIe8LXMCX1. The PCIe gold fingers allow for about 60W of power to be consumed

by the board across all XMC voltages including power supply losses. In many cases

the power budget is more than sufficient. If your XMC requires more power please

request the optional power connectors [2x3 PC power cable common with current PC

Power supplies] to increase the 12V available. Both 12V entry points are diode coupled

to prevent the current back-feeding when an external or other supply is added.

P3: 1-3 = +12, 4-6 = GND.

Embedded Solutions

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