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The Xilinx XC7A200T-1FBG676C belongs to the Xilinx-7 series of FPGAs that is dedicated to a thorough applications range that ranges from applications for lower cost and higher performance. The dedication of the device is also comprising of cost sensitivity, smaller form factor, the capability of logic-based applications, and high-end bandwidth connectivity. The device has abundant features such as having a lookup table with six enabled inputs that are configurable in the form of a distributed memory. The FIFO logic-enabled block RAM of 36Kb can be used for on-chip buffering of data. The device has SelectIO technology for higher performance achievement supporting DDR3 interfaces in a range of 1866 Mb/s.

The Xilinx XC7A200T-1FBG676C is offering a dedicated low power mode with its rapid serial connectivity that has integrated multi-gigabit enabled transceivers ranging from 600 Mb/s to 28.05 Gb/s. it has DSP slices having a multiplier of 25×18 bits, an accumulator of 48 bits, and a filter as a pre-adder that has a filtering option for symmetric coefficient filtering. The IC‘s clock management system in combination with a phased-lock loop delivers greater precision and lower jitter. Embedded processing is quickly deployed with its processor MicroBlaze. There is a built-in PCI Express block for root port designs and Gen3 endpoints. Based on 28nm technology with the HPL process having a core voltage process mechanism, the device consumes less power and bears high performance. Xilinx XC7A200T-1FBG676C has higher integrity for signals with its flip-chip packaging enabling easier migration of data among other devices of its family. 

Digital Signal Processing Slices

The digital signal processing functionalities of the device comprises of two’s complement accumulators and a multiplier with 25×18 bit for achieving a greater resolution 48-bit signal processor. The pre-adder is power saving that optimizes applications relevant to symmetrical filtering. The advanced features of Xilinx XC7A200T-1FBG676C DSP slices comprise of buses dedicated to cascading, option ALU and pipelining. The applications of DSP are using numerous binary accumulators and multipliers that are implemented in the DSP slices. This series of FPGA is having numerous dedicated, customized, low power consuming DSP slices catering to higher speed along with smaller size while maintaining the flexibility of the design of the system. The multiplier of the IC can be bypassed dynamically; whereas its 48-bit inputs could be fed in single instruction multiple data units in the form of two 24-bit accumulators, or four 12-bit adders, or any other logic that is capable of generating any different logic with two operands.

Electrical Characteristics

The single-ended outputs of Xilinx XC7A200T-1FBG676C are using a traditional CMOS technology-based pull/push structure that drives lower towards the ground or higher towards VCCO and can also be inserted in a higher Z state. The designer of the system is capable of specifying the slew rate and its output strength. Its input is active always but is typically ignored while output remains in an active state. Every pin is having an optional weak pull-down or pull-up resistor. Most pairs of pins can be configured in differential output or input pairs form. The differential pairs at inputs can also be terminated along 100 Ohms internal resistor. The device is supporting almost all differential standards such as HSTL, SSTL, BLVDS, and RSDS.

Low Power Features and 3-State Digital Controllable Impedance

The Xilinx XC7A200T-1FBG676C has a three-state digital controllable impedance that can control the drive impedance at output known as series termination. This is also able to deliver parallel termination of the certain input signal to VCCO. The device is also allowing its users to the elimination of an off-chip termination of signals through TDCI. The termination is turning OFF automatically whenever the 3-stated or output mode is saving power when compared to its off-chip termination along with board space savings. The inputs/outputs are having modes for low power for IDELAY and IBUF for delivering enhanced power savings, specifically at the time when memory interfaces are implemented.

Delay at Input and Output of Xilinx XC7A200T-1FBG676C

The entire outputs and inputs of the device could be configured in the form of registered or combinatorial. The inputs and outputs are capable of supporting double data rates. Some of the outputs and a few of inputs could be delayed individually through certain increments such as 39ps, 52ps, or 78ps, etc. The implementation of these delays is possible through ODELAY and IDELAY. Configuration can be used for setting up delay steps and at the same time decremented or incremented while in usage.

Transceivers of Xilinx XC7A200T-1FBG676C

The transceivers of Xilinx XC7A200T-1FBG676C are low-power gigabit transceivers that have higher performance with a capability of 6.6 Gb/s up to 28.05 Gb/s. The transceiver’s low power mode is enabling chip-to-chip interface optimization. It has decision feedback and receiver linear equalization along with post and pre-emphasis for advanced transmission for applications that are backplane or long-reach.

Transmitter

The transmitter of Xilinx XC7A200T-1FBG676C is essentially a parallel to serial converter that has conversion capability in the ratio of 80, 64, 40, 32, 20, and 16. The transmitter is also supporting 160 bits of data widths additionally for allowing the designers to manage trade-off of the width of the data-path for margin of timing when higher performance designs are considered. These outputs of the transmitter are driving the board of the PC through a unity channel differential output signal. The output clock of the transmitter is divided into serial data clocks that could be utilized for registering parallel data that comes from its internal logic. The incoming parallel data is fed through FIFO. For this purpose, additional hardware is also there to support encoding schemes of 64B/67B, 64B/66B, or 8B/10B for delivering enough transition numbers.

Receiver

The receiver of Xilinx XC7A200T-1FBG676C is preliminary a serial to a parallel converter that is altering the bit-serial differential signal in incoming mode to a parallel stream of words in the bits of 80, 64, 40, 32, 20, and 16. The receiver of the device has the support of data widths up to 160 bits. This is allowing the designer to manage trade-offs for the width of the data path internally along the margin of logic timing. The receiver is taking fed differential data stream and deliver it with the decision feedback and programmable linear equalizers and utilizes the input of reference clock for initiating recognition of clock. No separate clock line is required. The parallel data is delivered to FPGA logic through the use of a receiver user clock.