CL-PS7500FE
Advance Data Book
FEATURES
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Available in 56- and 40-MHz speed grades
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System-on-a-chip solution
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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
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.
(cont.)
TV
HEADPHONES
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Performance
— 50 Vax
™
-MIPS (Dhrystone
®
) at 56 MHz
— Up to 12 Mflops, double-precision FP (LINPACK)
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FPU
— Implements ANSI/IEEE Std 754-1985
— Single, double, and extended precision
(cont.)
Functional
Block Diagram
ROM
DRAM
(4 MBYTE, TYP)
COLOR LCD
SVGA MONITOR
ENCODER
PAL/NTSC
CD-DAC
CS4333
56k MODEM
CL-MD34XX
CONFIG. MEMORY
(NON-VOL.)
REALTIME CLOCK
MEMORY BUS
ETHERNET
CS89XX
VIDEO O/P
(RGB)
I/O PORT
AUDIO O/P
(32 BIT)
CL-PS7500FE
240-PIN PQFP
ISA-STYLE
BUS
FRONT PANEL:
STATUS LEDs
RUN/STANDBY SW
2*PS/2 PORTS
2 ANALOG
INPUTS
KEYBOARD
MOUSE
GAMES DEVICE
(ANALOG)
Version 2.0
June 1997
CIRRUS [ CIRRUS LOGIC ]
