Connect Tech FREE FORM/PCI-104 104 Bedienungsanleitung PDF herunterladen (Seite 11)

Connect Tech FreeForm/PCI-104 User Manual

Revision 0.07 11

Connector Pinouts

PCI-104 Header (P1)

Refer to PCI-104 specifications.

Note: The FreeForm/PCI-104 only requires the 5V power supply,. The board is compatible with

PCI-104 mother boards that supply just 5V or both 3.3V & 5V.

JTAG Programming Header (P2)

Use P2 to configure the FPGA via JTAG. Refer to FPGA Configuration for more information.

Power pins are for voltage reference only; they do not provide power to the configuration

circuitry.

Note that the FPGA can always be programmed via JTAG, regardless of the J1 configuration

setting.

Table 4: JTAG Programming Header Pinout (P2)

Signal

Direction

JTAG

Header

Top View

TRST

Input

TMS

Input

TDI

Input

TDO

Output

TCK

Input

GND

Reference

3.3V

Reference

SPI Flash Programming Header (P3)

P3 may be used to directly program the SPI flash, providing that J1 is set correctly to the tri-state

FPGA position. The power pins are for voltage reference only. They do not provide power to the

configuration circuitry.

Table 5: SPI Flash Programming Header Pinout (P3)

Signal

Direction

SPI Flash

Header

Top View

SPI_CSN

Input

SPI_MOSI

Input

SPI_MISO

Output

SPI_CLK

Input

GND

Reference

3.3V

Reference

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