Alinx AX7A200 User manual

ARTIX-7 FPGA
Development Board
AX7A200
User Manual

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Version Record
Version
Date
Release By
Description
Rev 1.0
2019-07-10
Rachel Zhou
First Release
The English version was translated by Shanghai Tianhui Trading
Company. They has not been officially Review by ALINX and are for
reference only. If there are any errors, please send email to
[e-mail] for correction.
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Customer Service Information
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Table of Contents
Version Record .............................................................................................2
Part 1: FPGA Development Board Introduction .......................................... 6
Part 2: AC7A200 Core Board .................................................................... 10
Part 2.1: AC7A200 Core Board Introduction ......................................10
Part 2.2: FPGA Chip ........................................................................... 12
Part 2.3: Active Differential Crystal .....................................................13
Part 2.4: DDR3 DRAM ........................................................................16
Part 2.5: QSPI Flash ...........................................................................19
Part 2.6: LED Light on Core Board .................................................... 21
Part 2.7: JTAG Interface .....................................................................22
Part 2.8: Power Interface on the Core Board .....................................23
Part 2.9: Board to Board Connectors pin assignment ....................... 24
Part 2.10: Power Supply .....................................................................31
Part 2.11: Core Board Form Factors ..................................................34
Part 3: Carrier Board ..................................................................................35
Part 3.1: Carrier Board Introduction ................................................... 35
Part 3.2: Gigabit Ethernet Interface ................................................... 36
Part 3.3: SFP Interface ....................................................................... 38
Part 3.4: PCIe x2 Interface ................................................................. 40
Part 3.5: HDMI output interface ..........................................................41
Part 3.6: HDMI Input interface ............................................................43
Part 3.7: SD Card Slot ........................................................................45
Part 3.8: USB-to-Uart Bridge Connector ............................................46
Part 3.9: EEPROM 24LC04 ................................................................48
Part 3.10: Temperature Sensor .......................................................... 49
Part 3.11: Expansion Header ............................................................. 50
Part 3.12: JTAG Interface ...................................................................53

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Part 3.13: Buttons ...............................................................................54
Part 3.14: LED Light ........................................................................... 55
Part 3.15: Power Supply .....................................................................57
Part 3.16: Fan ..................................................................................... 58
Part 3.17: Carrier Board Form Factors .............................................. 59

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This ARTIX-7 FPGA development platform adopts the core board + carrier
board mode, which is convenient for users to use the core board for secondary
development.
In the design of carrier board, we have extended a wealth of interfaces for
users, such as 1 PCIex2 interface, 2 SFP cage, 1 HDMI Output interface, 1
HDMI Input interface, 1 Gigabit Ethernet interfaces, Uart Interface, SD card slot
etc. It meets user's requirements for PCIe high-speed data exchange, video
transmission processing and industrial control. It is a "Versatile" ARTIX-7 FPGA
development platform. It provides the possibility for high-speed video
transmission, pre-validation and post-application of network, fiber and PCIe
communication and data processing. This product is very suitable for students,
engineers and other groups engaged in ARTIX-7 FPGA development.

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Part 1: FPGA Development Board Introduction
The entire structure of the AX7A200 FPGA development board is inherited
from our consistent core board + carrier board model. A high-speed inter-board
connector is used between the core board and the carrier board.
The core board is mainly composed of FPGA + 2 DDR3 + QSPI FLASH,
which undertakes the functions of high-speed data processing and storage of
FPGA, high-speed data reading and writing between FPGA and two DDR3s,
data bit width is 32 bits, and the bandwidth of the whole system is up to 25Gb.
/s(800M*32bit); The two DDR3 capacities are up to 8Gbit, which meets the
need for high buffers during data processing. The selected FPGA is the
XC7A200T chip of XILINX's ARTIX-7 series, in BGA 484 package. The
communication frequency between the XC7A200T and DDR3 reaches 400Mhz
and the data rate is 800Mhz, which fully meets the needs of high-speed
multi-channel data processing. In addition, the XC7A200T FPGA features four
GTP high-speed transceivers with speeds up to 6.6Gb/s per channel, making it
ideal for fiber-optic communications and PCIe data communications.
The AX7A200 carrier board expands its rich peripheral interface, including
1 PCIex2 interface, 2 SFP Interface, 1 HDMI Output interface, 1 HDMI Input
interface, 1 Uart Interface, 1 Gigabit Ethernet interfaces,1 SD card slot, 2-way
40-pin expansion header, some buttons, LED and EEPROM circuit.

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Figure 1-1-1: The Schematic Diagram of the AX7A200
Through this diagram, you can see the interfaces and functions that the
AX7102 FPGA Development Board contains:
Artix-7 FPGA core board
The core board consists of XC7A200T + 8Gb DDR3 + 128Mb QSPI
FLASH. There are two high-precision Sitime LVDS differential crystals,
one at 200MHz and the other at 125MHz, providing stable clock input
for FPGA systems and GTP modules.
1-channel PCIe x2 interface
Supports PCI Express 2.0 standard, provides PCIe x 2 high-speed data
transmission interface, single channel communication rate up to
5Gbaud
2-channel high-speed SFP Interface
The two high-speed transceivers of the GTP transceiver of ARTIX-7
FPGA are connected to the transmission and reception of two optical
modules to realize four high-speed optical fiber communication

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interfaces. Each fiber optic data communication receives and transmits
at speeds up to 6.6 Gb/s.
1-channel Gigabit Ethernet Interface RJ-45 interface
The Gigabit Ethernet interface chip uses Micrel's KSZ9031RNX
Ethernet PHY chip to provide network communication services to users.
The KSZ9031RNX chip supports 10/100/1000 Mbps network
transmission rates; full duplex and adaptive.
1-channel HDMI Output interface
Silion Image's SIL9134 HDMI encoding chip is selected to support up to
1080P@60Hz output and support 3D output.
1-channel HDMI Input interface
Silion Image's SIL9011/ SIL9013 HDMI decoder chip is selected, which
supports up to 1080P@60Hz input and supports data output in different
formats.
1-channel USB-to-Uart interface
1-channel USB-to-Uart interface for communication with the computer
for user debugging. The serial port chip is the USB-UAR chip of Silicon
Labs CP2102GM, and the USB interface is the MINI USB interface.
Micro SD card holder
1-port Micro SD card slot, support SD mode and SPI mode
EEPROM
Onboard an IIC interface EEPROM 24LC04
2-way 40-pin expansion port
Reserve 2-way 40-pin 0.1inch pitch expansion port can be connected
to various AXSOC modules (binocular camera, TFT LCD screen,
high-speed AD module, etc.). The expansion port contains 1 channel
5V power supply, 2 channel 3.3V power supply, 3 way ground, 34 IOs
port.
JTAG Interface

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A 10-pin 0.1 inch spacing standard JTAG ports for FPGA program
download and debugging.
Button
4 buttons; 1 reset button (on the core board)
LED Light
5 user LEDs (1 on the core board and 4 on the carrier board)

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Part 2: AC7A200 Core Board
Part 2.1: AC7A200 Core Board Introduction
AC7A200 (core board model, the same below) FPGA core board, it is
based on XILINX's ARTIX-7 series 100T XC7A200T-2FBG484I. It is a
high-performance core board with high speed, high bandwidth and high
capacity. It is suitable for high-speed data communication, video image
processing, high-speed data acquisition etc.
This AC7A200 core board uses two pieces of MICRON's
MT41J256M16HA-125 DDR3 chip, each DDR has a capacity of 4Gbit; two
DDR chips are combined into a 32-bit data bus width, and the read/write data
bandwidth between FPGA and DDR3 is up to 25Gb; such a configuration can
meet the needs of high bandwidth data processing.
The AC7A200 core board expands 180 standard IO ports of 3.3V level, 15
standard IO ports of 1.5V level, and 4 pairs of GTP high speed RX/TX
differential signals. For users who need a lot of IO, this core board will be a
good choice. Moreover, the routing between the FPGA chip and the interface is
equal length and differential processing, and the core board size is only 2.36
inch *2.36 inch, which is very suitable for secondary development.