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Connect Tech Inc. | FreeForm/Express S6 - PCIe Spartan-6 FMC Carrier | User Manual
Revision 0.01 15
Serial
Description
A standard RS232 serial ports is provided on P4, with UART implementation provided by FPGA logic.
Connectors
Function
RS232
Locations
P4
Type
2x5 0.100” header
Samtec TSW-105-07-L-D
Pinout
Pin
Signal
Pin
Signal
1
N/C
2
N/C
3
RXD1
4
RTS1
5
TXD1
6
CTS1
7
N/C
8
N/C
9
GND
10
N/C
Power
Description
The FreeForm/Express S6 is designed to be powered from the PCIe bus. The board requires +3.3V DC for
all circuitry. +12VDC is required for the FMC power good signal and as the FMC module’s power source.
The FreeForm/Express S6 generates all other required power rails on-board.
In addition, a programming / desktop debugging standalone power connector P1 is provided.
WARNING: Do not plug the FreeForm/Express S6 into a PCIe slot with an external power source
connected to P1. This could lead to board damage and void the product warranty.
Connectors & Jumpers
Function
Standalone power
Location
P1
Type
2x3 0.100” power header, shrouded
Samtec IPL1-103-01-L-D-RA-K
Pinout
Pin
Signal
Description
1
GND
Digital Ground
2
GND
Digital Ground
3
GND
Digital Ground
4
+3.3V
+3.3V DC, used by circuitry and
power regulators
5
+3.3V
+3.3V DC, used by circuitry and
power regulators
6
+12V
+12V DC used by FMC module,
and power good circuit