Xilinx CPLDs and FPGAs

Lecture L1.1

CPLDs and FPGAs

• XC9500 CPLD

• Spartan II FPGA

• Virtex FPGA

XC9500 CPLDs

• 5 volt in-system programmable (ISP) CPLDs

• 5 ns pin-to-pin• 36 to 288

macrocells (6400 gates)

• Industry’s best pin-locking architecture

• 10,000 program/erase cycles

• Complete IEEE 1149.1 JTAG capability

FunctionBlock 1

JTAGController

FunctionBlock 2

I/O

FunctionBlock 4

3

Global Tri-

States 2 or 4

FunctionBlock 3

I/O

In-SystemProgramming Controller

FastCONNECTSwitch Matrix

JTAG Port

3

I/O

I/O

Global Set/Reset

Global Clocks

I/OBlocks

1

XC9500 Function Block

ToFastCONNECT

FromFastCONNECT

2 or 43 GlobalTri-State

GlobalClocks

I/O

I/O

36

Product-Term

Allocator

Macrocell 1

ANDArray

Macrocell 18

Each function block is like a 36V18 !

XC9500 Product Family

9536

Macrocells

Usable Gates

tPD (ns)

Registers

Max I/O

36 72 108 144 216

800 1600 2400 3200 4800

5 7.5 7.5 7.5 10

36 72 108 144 216

34 72 108 133 166

Packages VQ44PC44 PC44

PC84TQ100PQ100

PC84TQ100PQ100PQ160

PQ100PQ160

288

6400

10

288

192

HQ208BG352

PQ160HQ208BG352

9572 95108 95144 95216 95288

Xilinx 95108

• 6 function blocks– Each contains 18 macro cells– Each macro cell behaves like a GAL32V18

• AND-OR array for sum-of-products

• 32 inputs and 18 outputs

Architecture of the Xilinx XC95108 CPLD

Each Xilinx 95108 macrocell contains a D flip-flop

Controlled inverter

Each Xilinx 95108 macrocell contains a D flip-flop

Note asynchronouspreset

x

Note asynchronousreset

y

z

CPLDs and FPGAs

• XC9500 CPLD

• Spartan II FPGA

• Virtex FPGA

Block diagram of Xilinx Spartan IIE FPGA

Each Spartan IIE CLB contains two of these CLB slices

Xilinx Spartan-II FPGAs

Block RAM

Delay-Locked Loop

Phase-Locked Loop

CPLDs and FPGAs

• XC9500 CPLD

• Spartan II FPGA

• Virtex FPGA

Virtex FPGAs

For info on Virtex 1000 boards, seehttp://www.zarx.info/

Virtex-II FPGAs

Virtex-II Pro FPGAs