CYCLONE IV FPGA - UNSJdea.unsj.edu.ar/sda/9_FPGA_SDA_A.pdf · 2017-07-31 · Cyclone FPGA Familiy...

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FPGAS C. Sisterna DSDA 1

Transcript of CYCLONE IV FPGA - UNSJdea.unsj.edu.ar/sda/9_FPGA_SDA_A.pdf · 2017-07-31 · Cyclone FPGA Familiy...

Page 1: CYCLONE IV FPGA - UNSJdea.unsj.edu.ar/sda/9_FPGA_SDA_A.pdf · 2017-07-31 · Cyclone FPGA Familiy Cyclone IV devices are targeted to high-volume, cost-sensitive applications, enabling

FPGAS

C. Sisterna DSDA 1

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Celda de Configuración del FPGA

Elemento básico no-lógico

2 DSDA

Determina la configuración de los

elementos de ruteo e interconexiones

Determina la configuración de cada

elemento lógico

C. Sisterna

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Celdas de Configuración del FPGA

Tipos de Celdas

SRAM

Anti-Fuse

Flash

Flash y SRAM

3 DSDA C. Sisterna

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Celda de Configuración SRAM

4 DSDA

La configuración de los elementos lógicos y los de

ruteo e interconexión son almacenados en celdas

SRAMs

Ventajas:

Rápida y fácil actualización

Infinitamente reprogramable

Programable en circuito (In System Programable)

Proceso de fabricación estándar

Costos muy bajos

Proceso súper-comprobado

Alto rendimiento

C. Sisterna

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Celda de Configuración SRAM

5 DSDA

Desventajas:

Necesidad de una memoria de configuración externa

Retardos en ruteo largos debido al retardo de la celda

SRAM

Celda volátil

Simple glitch en Vcc desconfigura el FPGA

Tiempo de configuración lento ~500ms

Inseguridad debido a la conexión FPGA-Memoria de

configuración que puede ser ‘leída’

C. Sisterna

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Celda de Configuración Anti-Fuse

6 DSDA

La configuración de los elementos lógicos y los de

ruteo e interconexión son almacenados en celdas

Anti-Fuse (ACTEL)

C. Sisterna

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Celda de Configuración Anti-Fuse

7 DSDA

Ventajas:

Retardos de conexiones de ruteo son pequeños

No es volátil

No sensibles a bombardeo de partículas iónicas

Muy usados en sistemas espaciales

C. Sisterna

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Celda de Configuración Anti-Fuse

8 DSDA

Desventajas:

One-Time-Programmable (OTP)

Proceso de verificacion muy largo y riguroso

Proceso muy caro

Proceso de fabricación específico

Costos elevados

No sensibles a bombardeo de partículas iónicas

Muy usados en sistemas espaciales

C. Sisterna

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Celda de Configuración Flash

9 DSDA

La configuración de los elementos lógicos y los de

ruteo e interconexión son almacenados en celdas

Flash

C. Sisterna

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Celda de Configuración Flash

10 DSDA

Ventajas:

Retardos de conexiones de ruteo son pequeños

No es volátil

Sensibilidad baja a bombardeo de partículas iónicas

Usados en sistemas espaciales

C. Sisterna

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Celda de Configuración Flash

11 DSDA

Desventajas:

FPGA es bastante caro

Proceso se esta haciendo mas común últimamente

Proceso de reconfiguración bastante largo (~3-5 seg)

C. Sisterna

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Celda de Configuración Flash-SRAM

12 DSDA

Ventajas:

Tiempo de configuración es bastante bajo (~<1ms)

Prácticamente ‘no es volátil’

Se pueden configurar solo las celdas SRAM

Durante el proceso de debug o prototipo

No se necesita una memoria de configuración externa

Menos espacio en el PCB

Sistema no vulnerable – Sistema seguro

C. Sisterna

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Celda de Configuración Flash-SRAM

13 DSDA

Desventajas:

FPGA es caro

Proceso se esta haciendo mas común últimamente

C. Sisterna

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Celda de Configuración Flash-SRAM

14 DSDA

Las celdas Flash se usan para guardar los datos de

configuración del FPGA

Las celdas SRAM para la configuración de los

elementos lógicos y los de ruteo e interconexión

Cuando de alimenta el FPGA, las celdas SRAM se

configuran en forma casi instantanea desde las

celdas Flash.

C. Sisterna

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Comparación Tipos de Celdas

DSDA 15 C. Sisterna

SRAM Anti_fuse Flash

Tecnología Ultima

Una o más

generación

atrás

Una o más

generación atrás

Velocidad Más lenta Mejor Más lenta

Volátil Si No No

Potencia Varía/Peor Baja Media Baja

Densidad Mejor Segunda Mejor Media

Tolerancia a la

Radiación Peor Mejor Media

Config. Externa Si No No

Tamaño celda ruteo 1 1/10 1/7

Memoria Externa Si No No

Reprogramable Si No Si

Instant-On No Si Si

Seguridad

Encriptado->

Buena, Sino

MALA

Muy buena Muy Buena

Tamano Celda

Config.

Grande

(6 Transistores) Muy pequeña

Media-Baja

(2 transistores)

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CYCLONE IV FPGA

C. Sisterna 16 DSDA

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Cyclone IV – General View

C. Sisterna DSDA 17

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Cyclone FPGA Familiy

Cyclone IV devices are targeted to high-volume, cost-sensitive applications, enabling system designers to meet increasing bandwidth requirements while lowering costs

Built on an optimized low-power process, the Cyclone IV

device family offers the following two variants:

Cyclone IV E—lowest power, high functionality with the lowest cost

Cyclone IV GX—lowest power and lowest cost FPGAs with 3.125 Gbps transceivers

C. Sisterna 18 DSDA

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Cyclone IV E Family

C. Sisterna 19 DSDA

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Cyclone IV GX Family

C. Sisterna 20 DSDA

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Cyclone Core Fabric

Logic Elements: 4-input look up tables

M9K Memory Blocks: 9Kbits of

embedded SRAM

Embedded Multiplier: 18x18 or two 9x9

multipliers in a single block

C. Sisterna 21 DSDA

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Cyclone I/O Features

Cyclone device I/O supports:

◦ Programmable bus hold

◦ Programmable pull-up resistors

◦ Programmable delay

◦ Programmable drive strength

◦ Programmable slew rate control

◦ Hot socketing

◦ Calibrated on-chip series termination or dirves

impedance matching

◦ Cyclone GX offers high-speed transceiver I/Os

C. Sisterna 22 DSDA

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Cyclone Clock Management

Include up to 30 global clock network (GCLK)

Include up to 8 PLLs, with five outputs per PLL

Cyclone IV GX support:

◦ Multipurpose PLL: for clocking the transceiver blocks (they can be used as general-purpose clock)

◦ General purpose PLL: fo general applications in the fabric and periphery

C. Sisterna 23 DSDA

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External Memory Interface

Cyclone IV supports SDR, DDR, DDR2

SDRAM and QDRII SRAM interfaces

Support the use of error correction

coding (ECC) bits on DDR and DDR2

SDRAM interfaces

C. Sisterna 24 DSDA

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Packaging Ordering Information

C. Sisterna 25 DSDA

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LOGIC ELEMENT

C. Sisterna DSDA 26

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Logic Elements (LE)

Each LE has the following features:

A four-input look-up table (LUT), which can implement any function of

four variables

A programmable register

A carry chain connection

A register chain connection

The ability to drive the following interconnects:

◦ Local

◦ Row

◦ Column

◦ Register chain

◦ Direct link

Register packing support

Register feedback support

C. Sisterna 27 DSDA

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Logic Element

C. Sisterna 28 DSDA

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Logic Array Block

Logic array blocks (LABs) contain groups of LEs

Each LAB consists of the following features:

◦ 16 LEs

◦ LAB control signals

◦ LE carry chains

◦ Register chains

◦ Local interconnect

C. Sisterna 29 DSDA

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LAB Structure

C. Sisterna 30 DSDA

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ROUTING

C. Sisterna DSDA 31

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Interconnect - Routing

DSDA 32 C. Sisterna

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Interconnect - Routing

DSDA 33

Transistor de Paso

M

Y 0

Y

PIP

C. Sisterna

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Interconnect - Routing

DSDA 34 C. Sisterna

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Interconnect - Routing

35 DSDA C. Sisterna

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Interconnect - Routing

DSDA 36 C. Sisterna

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Interconnect - Routing

DSDA 37 C. Sisterna

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EMBEDDED MEMORY

C. Sisterna DSDA 38

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Embedded Memory

M9K blocks support the following features: 8,192 memory bits per block (9,216 bits per block including parity)

Independent read-enable (rden) and write-enable (wren) signals for each port

Packed mode in which the M9K memory block is split into two 4.5 K single-port RAMs

Variable port configurations

Single-port and simple dual-port modes support for all port widths

True dual-port (one read and one write, two reads, or two writes) operation

Byte enables for data input masking during writes

Two clock-enable control signals for each port (port A and port B)

Initialization file to pre-load memory content in RAM and ROM modes

C. Sisterna DSDA 39

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Embedded Memory Modes

Cyclone IV devices M9K memory blocks allow to implement fully-synchronous SRAM memory in multiple modes of operation.

M9K memory blocks support the following modes:

◦ Single-port

◦ Simple dual-port

◦ True dual-port

◦ Shift-register

◦ ROM

◦ FIFO

C. Sisterna DSDA 40

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Single Port Mode

C. Sisterna DSDA 41

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Simple Dual Port

C. Sisterna DSDA 42

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True Dual Port

C. Sisterna DSDA 43

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Embedded Multitplier

Each embedded multiplier consists of the

following elements:

◦ Multiplier stage

◦ Input and output registers

◦ Input and output interfaces

C. Sisterna DSDA 44

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Embedded Multiplier

C. Sisterna DSDA 45

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INPUT/OUTPUT FEATURES

C. Sisterna DSDA 46

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Cyclone IV I/O Elements

C. Sisterna DSDA 47

SDR Mode

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I/O Element Features

Programmable Current Strength

Slew Rate Control

Open-Drain Output

Bus Hold

Programmable Pull-Up Resistor

Programmable Delay

On Chip Termination (resistor)

C. Sisterna DSDA 48

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I/O Standards

C. Sisterna DSDA 49

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I/O Standards

C. Sisterna DSDA 50

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I/O Banks

C. Sisterna DSDA 51

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I/O LVDS Implementation

C. Sisterna DSDA 52

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DDR Input Registers

C. Sisterna DSDA 53

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DDR Output Registers

C. Sisterna DSDA 54

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FPGA CONFIGURATION

C. Sisterna DSDA 55

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Active Serial Configuration

C. Sisterna DSDA 56

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Configuring Multiple Devices

C. Sisterna DSDA 57

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Pasive Serial Configuration

C. Sisterna DSDA 58

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PS Configuration with a Micro

C. Sisterna DSDA 59

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JTAG Configuration

C. Sisterna DSDA 60

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Active Parallel Configuration

C. Sisterna DSDA 61