EP7312 datasheet(2/54 Pages) CIRRUS

2 / 54 page

©Copyright Cirrus Logic, Inc. 2003

DS506PP1

EP7311

High-Performance, Low-Power System on Chip

FEATURES (cont)

I LCD controller

— Interfaces directly to a single-scan panel

monochrome STN LCD

— Interfacestoasingle-scan panel color STN LCD

with minimal external glue logic

I Full JTAG boundary scan and Embedded ICE®

support

I Integrated Peripheral Interfaces

— 32-bit SDRAM Interface up to 2 external banks

— 8/32/16-bit SRAM/FLASH/ROM Interface

—Multimedia Codec Port

— Two Synchronous Serial Interfaces (SSI1, SSI2)

—CODEC Sound Interface

—8

×8 Keypad Scanner

— 27 General Purpose Input/Output pins

— Dedicated LED flasher pin from the RTC

I Internal Peripherals

— Two 16550 compatible UARTs

—IrDA Interface

—Two PWM Interfaces

—Real-time Clock

— Two general purpose 16-bit timers

— Interrupt Controller

— Boot ROM

I Package

—208-Pin LQFP

— 256-Ball PBGA

— 204-Ball TFBGA

I The fully static EP7311 is optimized for low power

dissipation and is fabricated on a 0.25 micron CMOS

process

I Development Kits

— EDB7312: Development Kit with color STN LCD

on board.

— EDB7312-LW: EDB7312 with Lynuxworks’

BlueCat Linux Tools and software for Windows

host (free 30 day BlueCat support from

Lynuxworks).

— EDB7312-LL: EDB7312 with Lynuxworks’ BlueCat

Linux Tools and software for Linux host (free 30

day BlueCat support from Lynuxworks).

Note:

* BlueCat available separately through Lynuxworks

only.

* Use the EDB7312 Development Kit for all the EP73xx

devices.

OVERVIEW (cont.)

The EP7311 is designed for low-power operation. Its core

operates at only 2.5 V, while its I/O has an operation

range of 2.5 V–3.3 V. The device has three basic power

states: operating, idle and standby.

One of its notable features is MaverickKey unique IDs.

These are factory programmed IDs in response to the

growing concern over secure web content and commerce.

With Internet security playing an important role in the

delivery of digital media such as books or music,

traditional software methods are quickly becoming

unreliable. The MaverickKey unique IDs consist of two

registers, one 32-bit series register and one random 128-

bit register that may be used by an OEM for an

authentication mechanism.

Simply by adding desired memory and peripherals to the

highly integrated EP7311 completes a low-power system

solution. All necessary interface logic is integrated on-

chip.

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