CL-PS7500FE-56QC-A Просмотр технического описания (PDF) - Cirrus Logic

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CL-PS7500FE-56QC-A

System-on-a Chip for Internet Appliance

Cirrus Logic 

CL-PS7500FE

Advance Data Book

FEATURES

s Available in 56- and 40-MHz speed grades

s System-on-a-chip solution

— 32-bit ARM7 processor with MMU

— 4K unified cache

— FPU (floating point unit)

— Graphics controller drives CRT or LCD

— CD-quality sound audio controller

— DRAM controller

— ROM/Flash controller

— Three-channel DMA for video, cursor, and sound

— PC-style I/O bus

— Two-state power management

— Eight general-purpose I/O lines

s Performance

— 50 Vax™-MIPS (Dhrystone®) at 56 MHz

— Up to 12 Mflops, double-precision FP (LINPACK)

s FPU

— Implements ANSI/IEEE Std 754-1985

— Single, double, and extended precision

System-on-a Chip for

Internet Appliance

OVERVIEW

The Cirrus Logic CL-PS7500FE is designed to be

used in internet appliances such as the network

computer, smart-TV, intranet terminal, screen

phones, DVD players, and so on.

The massively integrated CL-PS7500FE offers a

complete system-on-a-chip solution that includes a

32-bit ARM CPU with cache and MMU, CRT and

LCD controller, memory controller, FPU, CD-quality

sound controller, interface to the Cirrus Logic DSP

device for 56K modem and speakerphone, and a

PC-type I/O bus. To handle streaming of audio and

video data on the Internet, the CL-PS7500FE

includes a double-precision FPU to accelerate

software codecs.

Functional

Block Diagram

(cont.)

COLOR LCD SVGA MONITOR

TV

HEADPHONES

(cont.)

ROM

DRAM

(4 MBYTE, TYP)

CONFIG. MEMORY

(NON-VOL.)

REALTIME CLOCK

FRONT PANEL:

STATUS LEDs

RUN/STANDBY SW

ENCODER

PAL/NTSC

CD-DAC

CS4333

MEMORY BUS

VIDEO O/P

(RGB)

AUDIO O/P

(32 BIT)

I/O PORT

CL-PS7500FE

240-PIN PQFP

ISA-STYLE

BUS

2 ANALOG

2*PS/2 PORTS

INPUTS

56k MODEM

CL-MD34XX

ETHERNET

CS89XX

Version 2.0

KEYBOARD

MOUSE

GAMES DEVICE

(ANALOG)

June 1997

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