基于Xilinx全编程的系统级芯片(SoC)架构 Zynq®-7000系列_技术

Xilinx公司的Zynq®-7000系列是基于Xilinx全编程的系统级芯片(SoC)架构,集成了功能丰富的双核或单核ARM® Cortex™-A9处理系统(PS)和28nm Xilinx可编程逻辑.ARM® Cortex™-A9 CPU是处理系统的心脏,包括了片上存储器,外接存储器接口和各种外设连接接口.主要用在汽车辅助驾驭,驾驭信息和娱乐系统,广播照相机,工业马达控制,工业网络和机器视角,IP和智能照相机,LTE无线和基带,医疗诊断和成像,多功能打印机以及视频和夜视设备.本文介绍了Zynq-7000 FPGA主要特性和架构图,以及Zybo Zynq-7000 ARM/FPGA SoC培训板主要特性和优势,主要元件分布图与电路图.

The Zynq®-7000 family is based on the Xilinx All Programmable SoC architecture. These products integrate a feature-rich dual-core or single-core ARM® Cortex™-A9 based processing system (PS) and 28 nm Xilinx programmable logic (PL) in a single device. The ARM Cortex-A9 CPUs are the heart of the PS and also include on-chip memory, external memory interfaces, and a rich set of peripheral connecTIvity interfaces.

• AutomoTIve driver assistance, driver informaTIon, and infotainment

• Broadcast camera

• Industrial motor control, industrial networking, and machine vision

• IP and Smart camera

• LTE radio and baseband

• Medical diagnosTIcs and imaging

• Multifunction printers

• Video and night vision equipment

The Zynq-7000 architecture enables implementation of custom logic in the PL and custom software in the PS. It allows forthe realization of unique and differentiated system functions. The integration of the PS with the PL allows levels ofperformance that two-chip solutions (e.g., an ASSP with an FPGA) cannot match due to their limited I/O bandwidth, latency,and power budgets.

Xilinx offers a large number of soft IP for the Zynq-7000 family. Stand-alone and Linux device drivers are available for theperipherals in the PS and the PL. The Vivado® Design Suite development environment enables a rapid productdevelopment for software, hardware, and systems engineers. Adoption of the ARM-based PS also brings a broad range ofthird-party tools and IP providers in combination with Xilinx’s existing PL ecosystem.

The inclusion of an application processor enables high-level operating system support, e.g., Linux. Other standard operatingsystems used with the Cortex-A9 processor are also available for the Zynq-7000 family.

The PS and the PL are on separate power domains, enabling the user of these devices to power down the PL for powermanagement if required. The processors in the PS always boot first, allowing a software centric approach for PLconfiguration. PL configuration is managed by software running on the CPU, so it boots similar to an ASSP.

Zynq-7000 FPGA主要特性:

Processing System (PS)

ARM Cortex-A9 Based

Application Processor Unit (APU)

• 2.5 DMIPS/MHz per CPU

• CPU frequency: Up to 1 GHz

• Coherent multiprocessor support

• ARMv7-A architecture

• TrustZone® security

• Thumb®-2 instruction set

• Jazelle® RCT execution Environment Architecture

• NEON™ media-processing engine

• Single and double precision Vector Floating Point Unit (VFPU)

• CoreSight™ and Program Trace Macrocell (PTM)

• Timer and Interrupts

• Three watchdog timers

• One global timer

• Two triple-timer counters

Caches

• 32 KB Level 1 4-way set-associative instruction and data caches(independent for each CPU)

• 512 KB 8-way set-associative Level 2 cache(shared between the CPUs)

• Byte-parity support

On-Chip Memory

• On-chip boot ROM

• 256 KB on-chip RAM (OCM)

• Byte-parity support

External Memory Interfaces

• Multiprotocol dynamic memory controller

• 16-bit or 32-bit interfaces to DDR3, DDR3L, DDR2, or LPDDR2memories

• ECC support in 16-bit mode

• 1GB of address space using single rank of 8-, 16-, or 32-bit-widememories

• Static memory interfaces

• 8-bit SRAM data bus with up to 64 MB support

• Parallel NOR flash support

• ONFI1.0 NAND flash support (1-bit ECC)

• 1-bit SPI, 2-bit SPI, 4-bit SPI (quad-SPI), or two quad-SPI (8-bit)serial NOR flash

8-Channel DMA Controller

• Memory-to-memory, memory-to-peripheral, peripheral-to-memory,and scatter-gather transaction support

I/O Peripherals and Interfaces

• Two 10/100/1000 tri-speed Ethernet MAC peripherals withIEEE Std 802.3 and IEEE Std 1588 revision 2.0 support

• Scatter-gather DMA capability

• Recognition of 1588 rev. 2 PTP frames

• GMII, RGMII, and SGMII interfaces

• Two USB 2.0 OTG peripherals, each supporting up to 12 Endpoints

• USB 2.0 compliant device IP core

• Supports on-the-go, high-speed, full-speed, and low-speedmodes

• Intel EHCI compliant USB host

• 8-bit ULPI external PHY interface

• Two full CAN 2.0B compliant CAN bus interfaces

• CAN 2.0-A and CAN 2.0-B and ISO 118981-1 standardcompliant

• External PHY interface

• Two SD/SDIO 2.0/MMC3.31 compliant controllers

• Two full-duplex SPI ports with three peripheral chip selects

• Two high-speed UARTs (up to 1 Mb/s)

• Two master and slave I2C interfaces

• GPIO with four 32-bit banks, of which up to 54 bits can be used withthe PS I/O (one bank of 32b and one bank of 22b) and up to 64 bits(up to two banks of 32b) connected to the Programmable Logic

• Up to 54 flexible multiplexed I/O (MIO) for peripheral pin assignments

Interconnect

• High-bandwidth connectivity within PS and between PS and PL

• ARM AMBA® AXI based

• QoS support on critical masters for latency and bandwidth control

Programmable Logic (PL)

Configurable Logic Blocks (CLB)

• Look-up tables (LUT)

• Flip-flops

• Cascadeable adders

36 Kb Block RAM

• True Dual-Port

• Up to 72 bits wide

• Configurable as dual 18 Kb block RAM

DSP Blocks

• 18 x 25 signed multiply

• 48-bit adder/accumulator

• 25-bit pre-adder

Programmable I/O Blocks

• Supports LVCMOS, LVDS, and SSTL

• 1.2V to 3.3V I/O

• Programmable I/O delay and SerDes

JTAG Boundary-Scan

• IEEE Std 1149.1 Compatible Test Interface

PCI Express® Block

• Supports Root complex and End Point configurations

• Supports up to Gen2 speeds

• Supports up to 8 lanes

Serial Transceivers

• Up to 16 receivers and transmitters

• Supports up to 12.5 Gb/s data rates

Two 12-Bit Analog-to-Digital Converters

• On-chip voltage and temperature sensing

• Up to 17 external differential input channels

• One million samples per second maximum conversion rate

图1.Zynq-7000 FPGA架构图

Zybo Zynq-7000 ARM/FPGA SoC培训板

The Zybo (Zynq™ Board) is a feature-rich, ready-to-use, entry-level embedded software and digital circuit development platform built around the smallest member of the Xilinx Zynq-7000 family, the Z-7010. The Z-7010 is based on the Xilinx® All Programmable System-on-Chip (AP SoC) architecture, which tightly integrates a dual-core ARM Cortex-A9 processor with Xilinx 7-series field programmable gate array (FPGA) logic. When coupled with the rich set of multimedia and connectivity peripherals available on the Zybo, the Zynq Z-7010 can host a whole system design. The on-board memories, video and audio I/O, dual-role USB, Ethernet and SD slot will have your design up-and-ready with no additional hardware needed. Additionally, six Pmod connectors are available to put any design on an easy growth path. The Zybo provides an ultra-low cost alternative to the ZedBoard for designers that don’t require the high-density I/O of the FMC connector, but still wish to leverage the massive processing power and extensibility of the Zynq AP SoC architecture.

Zybo Zynq-7000 ARM/FPGA SoC培训板主要特性和优势:

128 Mb Serial Flash w/ QSPI interface

16-bits per pixel VGA output port

240 KB Block RAM

28,000 logic cells

512 MB x32 DDR3 w/ 1050Mbps bandwidth

650 MHz dual-core Cortex™-A9 processor

80 DSP slices

Audio codec with headphone out, microphone and line in jacks

DDR3 memory controller with 8 DMA channels

Dual-role (Source/Sink) HDMI port

External EEPROM (programmed with 48-bit globally unique EUI-48/64™ compatible identifier)