本文介紹了LatticeXP2系列主要特性，LatticeXP2-17器件簡化方框圖，LatticeXP2標(biāo)準(zhǔn)評(píng)估板主要特性和LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖。

Lattice 公司的LatticeXP2器件包括基于查找表（LUT）的 FPGA以及非易失閃存單元（flexiFLASH）。LatticeXP2系列器件的LUT從5K到40K，分布是RAM從10K到83Kb，EBR SRAM從166Kb到885Kb，EBR SRAM區(qū)塊從9到48個(gè)，sysDSP從3個(gè)到8個(gè)，18x18乘法器從12個(gè)到32個(gè)，可用的I/O從172個(gè)到540個(gè)，GPLL從2個(gè)到4個(gè)。工作電壓1.2V，主要用在對(duì)成本敏感的市場如消費(fèi)類電子，汽車電子，醫(yī)療和工業(yè)，網(wǎng)絡(luò)和計(jì)算。

LatticeXP2主要特性：



LatticeXP2系列產(chǎn)品：


圖1。LatticeXP2-17器件簡化方框圖（頂視圖）

LatticeXP2 devices are ideal for a variety of applications in cost sensitive markets such as Consumer, Automotive, Medical & Industrial, Networking and Computing

LatticeXP2標(biāo)準(zhǔn)評(píng)估板

LatticeXP2 Standard Evaluation Board

The LatticeXP2? Standard Evaluation Board provides a convenient platform to evaluate, test and debug user designs. The board features a LatticeXP2-17 FPGA in a 484 fpBGA package. The LatticeXP2 I/Os are connected to a rich variety of interfaces described later in this document.

This document (including the schematics in the appendix) describes LatticeXP2 Standard Evaluation Boards marked as Rev 000. This marking can be seen on the etching on the back of the printed circuit board, under the Lattice Semiconductor logo.

The LatticeXP2 is a third-generation non-volatile FPGA device. It combines a Look-up Table (LUT) based FPGA fabric with Flash Non-volatile cells in a flexiFLASH? architecture. The flexiFLASH approach provides benefits such as instant-on, small footprint, on chip storage with FlashBAK? embedded block memories and Serial TAG memory and design security. The LatticeXP2 also supports live updates with TransFR?, 128-bit AES Encryption and Dual-Boot technologies. The LatticeXP2 devices include LUT-based logic, distributed and embedded memory, Phase Locked Loops (PLLs), pre-engineered source synchronous I/O and enhanced sysDSP? blocks.

圖2。LatticeXP2標(biāo)準(zhǔn)評(píng)估板外形圖

LatticeXP2標(biāo)準(zhǔn)評(píng)估板主要特性：

LatticeXP2 Standard Evaluation Board featuring

LatticeXP2-17 FPGA in 484fpBGA package (LFXP2-17E-6F484C)

On-board Asynch SRAM memory (256Kx32 providing 1Mbyte)

A/D converter (Burr Brown ADS7842)

D/A converter (Burr Brown DAC7617)

10K digital POT

RS232 DB9 "female" connector

Compact Flash connector

8-bit switch

8 general purpose LEDs

4 push-button switches

7-segment LED

Built-in USB download capability (includes MachXO device)

Selectable I/O voltage

SMA connectors for clock and general purpose I/O

PAC607 power manager

on-board oscillator (dip socket)

Proto/test area

SPI flash memory for alternate configuration

Power via Bellnix DC power control modules

LCD connector

圖3。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（1）

圖4。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（2）：電源和配置

圖5。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（3）：Bank 0-3

圖6。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（4）：Bank 4-7

圖7。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（5）：可編程接口

圖8。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（6）：旁路電容

圖9。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（7）：外設(shè)和時(shí)鐘輸入

圖10。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（8）：D/A，A/D，7段和RS232

圖11。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（9）：緊湊閃存，LVDS，開關(guān)和LCD

圖12。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（10）：異步SRAM

圖13。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（11）：原型柵格

圖14。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（12）：電源管理

圖15。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（13）：1.2V和電源

圖16。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（14）：3.3V電源轉(zhuǎn)換器

圖17。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（15）：可調(diào)整電源

圖18。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（16）：USB下載PHY

圖19。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（17）：MachXO電源

圖20。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（18）：MachXO Bank 0-3

圖21。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（19）：MachXO Bank 4-7

圖22。LatticeXP2標(biāo)準(zhǔn)評(píng)估板電路圖（20）：布置方案