EP7311-CR-90 datasheet(2/58 Pages) CIRRUS

Part #	EP7311-CR-90

Description	High-performance, Low-power, System-on-chip with SDRAM & Enhanced Digital Audio Interface

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Manufacturer	CIRRUS [Cirrus Logic]

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©Copyright Cirrus Logic, Inc. 2005

DS506F1

EP7311

High-Performance, Low-Power System on Chip

FEATURES (cont)

■ LCD controller

— Interfaces directly to a single-scan panel monochrome

STN LCD

— Interfaces to a single-scan panel color STN LCD with

minimal external glue logic

■ Full JTAG boundary scan and Embedded ICE® support

■ 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

■ Internal Peripherals

— Two 16550 compatible UARTs

— IrDA Interface

— Two PWM Interfaces

— Real-time Clock

— Two general purpose 16-bit timers

— Interrupt Controller

— Boot ROM

■ Package

—208-Pin LQFP

—256-Ball PBGA

—204-Ball TFBGA

■ The fully static EP7311 is optimized for low power

dissipation and is fabricated on a 0.25 micron CMOS

process

■ 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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