Microsemi UG0786, User Manual

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Getting Started
UG0786 User Guide Revision 1.0 5
ON/OFF switch SW1 Power ON/OFF switch from +12 V external DC jack.
Power-monitoring
FPGA U13 Microsemi SmartFusion
®
FPGA (A2F200M3F-1FGG256I)
used for power sequence and monitoring the voltage rails
on the PolarFire Splash Board.
Clocks
On-board 50-MHz
clock oscillator Y2 50-MHz clock oscillator with single-ended output.
OSC Y3 125-MHz oscillator (differential LVDS output) which is the
input to the DS08MB200TSQ clock MUX buffer.
FPGA Programming and Debugging
USB-UART terminal J1 FTDI programmer interface to program the PolarFire
device based on the jumper settings.
SPI flash U33 1-Gb Micron MT25QL01GBBB8ESF-0SIT SPI flash
memory device connected to SPI pins on bank3 of the
PolarFire device.
FT4232H U7 USB-to-quad serial ports in various configurations.
JTAG programming
header J15 Header to program and debug the PolarFire device using
FlashPro4 or FlashPro5. The appropriate programmer
(FlashPro4 or FlashPro5) must be selected in the FlashPro
software.
Communication Interfaces
x4 PCIe edge
connector CON1 PCIe edge connector with four XCVR0 lanes.
One 10/100/1000
Ethernet RJ45
connector J14 Ethernet (RJ45) jack with external magnetics interfacing
with Microsemi 10/100/1000 BASE-T PHY (VSC8541) in
RGMII mode. The PHY interfaces with the Ethernet ports of
the PolarFire device.
FMC LPC connector J17 FMC connector with one XCVR lane and 34 differential
pairs (LPC[0:33])
Memory Chips
DDR4 Memory U18 and U22 Two 4-GB (IS43QR16256A 256M × 16) chips are
connected in Fly-by topology with a 32-bit data bus for
storing data bits. For more information, request the
datasheet from the
ISSI website .
General Purpose I/O
Switches SW3, SW4, SW5,
and SW6 Push-button switches for user-interface debugging
applications.
DIP Switches SW8 Eight DIP switches for testing.
Light-emitting diodes
(LEDs) LED4 to LED11 Eight active-high LEDs connected to some of the user I/Os
for debugging, and twelve active high LEDs used for
indicating power supply.
Reset switch SW2 Push-button system reset for the PolarFire device. Users
must program thi.s GPIO for PolarFire device reset
function.
Table 2 • PolarFire Splash Board Components (continued)
Component Label on Board Description