CL-PS7500FE
Product Bulletin
January 1999
High-Performance
System-on-a-Chip
with CRT/LCD Controller
OVERVIEW
FEATURES
s
Massively integrated system-on-a-chip
-- High-speed CPU and all major system peripherals
incorporated
-- Minimized need for external components
-- Maximum design simplicity
s
CRT/LCD controller
-- Unified Memory Architecture (UMA)
-- Resolutions up to 1024
768 (XGA)
-- 256-entry 28-bit video palette
-- Up to 16 million colors
-- Up to 120-MHz pixel clock rates for flicker-free screen
refresh
-- Supports single- and dual-scan LCD panels
-- 16-level grayscaler
-- Hardware cursor for all display modes
s
Performance matching 100-MHz Intel
'486-based PC
s
32-bit ARM710A microprocessor
-- ARM7 CPU
The CL-PS7500FE is a massively integrated gen-
eral-purpose `system-on-a-chip' designed for a wide
range of control and communications applications.
Based on a low-power, high-speed ARM
RISC
CPU core, the CL-PS7500FE integrates a powerful
50-MIPS processor, hardware floating point unit,
memory interfaces, and a full complement of system
peripherals onto a single chip. This integrated chip
greatly simplifies system design for complex appli-
cations such as network computers, set-top boxes,
screen phones, process control systems, and
instrumentation control.
(cont.)
(cont.)
FUNCTIONAL BLOCK DIAGRAM
SERIAL
PORT 1
A[28:0]
I/O CHIP SELECTS
IOD[15:0]
SERIAL
WAKEUP
CS
ANALOG
IOP[7:0]
PCMCIA XIP
OSC CONTROL
DRAM
INTERRUPTS
INTERRUPTS AND
TIMERS
ARBITRATION
SERIAL
PORT 2
DATA
BUFFER
CLOCK AND POWER
DRAM
SRAM I/F
DMA
DECODE
I/O
CONTROL
4X A/D
FLOATING POINT
UNIT (FPU)
4KB
CACHE
ARM7
MMU
CONTROL
WRITE BUFFER
DATA LATCH
CPUCLK
VIDCLK
MEMCLK
D[31:0]
DAC REF
TIMING
RBG MONITOR
LCD PANEL
SNDCLK
ARM710A
(4K CACHE)
EXTERNAL
CD-DAC (CS4333)
MUTE
RESET
I/O AND MEMORY
VIDEO AND
SOUND
SOUND
FIFO
VIDEO
FIFO
CURSOR
FIFO
T
I
M
I
NG
AND CL
OCK
SOUND
DIGITAL
VIDEO
PALETTE
CURSO
PALETTE
MUX
RGB
DACS
LCD
TM
CL-PS7500FE
System-on-a-Chip with CRT/LCD Controller
OVERVIEW
(cont.)
-- 4 Kbytes of unified cache
-- MMU with 64-entry TLB (transition look-aside buffer)
-- 8-words-deep write buffer
s
Hardware FPU
-- Implements ANSI/IEEE Std. 754-1985
-- Single, double, and extended precision
-- Up to 12 Mflops, double-precision FP
-- Ideal for Java
TM
s
DRAM controller
-- Supports EDO and Fast Page Mode DRAMs
-- Up to 132 Mbps (peak) throughput using 64-MHz
memory clock and 32-bit-wide DRAMs
-- Programmable 16- or 32-bit-wide memory system
-- Pipelined speed-critical paths
s
ROM/FLASH memory control
-- Supports two 16-Mbyte banks
-- Individual read timings
-- Burst mode reads
-- Allows for writes under register control for FLASH
s
Two PS/2
-style serial ports
-- Keyboard
-- Mouse
s
16-bit ISA-style I/O bus
-- Allows for connection to industry-standard peripheral
devices
-- CS89XX Ethernet controller
-- 56K Fax/modem chipset
-- Can be expanded to 32 bits with external transceivers
s
Serial CD-quality digital sound (32-bit) output
s
Three-state power management
s
Eight general-purpose I/O lines
s
Four analog comparators
-- Supports analog joystick
s
Timer and counters
s
Available in 40- and 56-MHz speed grades
s
240-pin MQFP package
s
Evaluation kit available with BOM, schematics,
and design database
In addition to the 32-bit processor with a hardware
floating point unit, the CL-PS7500FE incorporates
system cache, a MMU (memory management unit),
a high-resolution color CRT/LCD graphics control-
ler, a CD-quality audio controller, and various other
peripheral interfaces.
Display Interface
The display controller section of the CL-PS7500FE
features direct drive of an RGB color monitor or a
color LCD. It supports up to a 120-MHz pixel clock
rate for flicker-free screen refreshes at resolutions
up to the XGA 1024 x 768. It also incorporates vari-
ous sync signals; when combined with an external
encoder device, these signals permit the use of
interlaced television monitors for display. A hard-
ware cursor is supported in all display modes to min-
imize system overhead during cursor updates.
The CL-PS7500FE makes use of an UMA (unified
memory architecture) that allows for a design to
share system memory between the display function
and the program memory. This eliminates the need
for separate memory blocks for display and program
memory and reduces overall system costs. A dedi-
cated high-speed DMA channel is used to control
screen updates and minimize the overall system
bandwidth devoted to display requirements.
I/O and Memory
In addition to the advanced peripherals incorporated
into the CL-PS7500FE, a wide variety of Cirrus
Logic and industry-standard third-party peripheral
f u n c t i o n s c a n b e a t t a c h e d t h r o u g h t h e
CL-PS7500FE's integrated 16-bit ISA-style I/O bus
and eight general-purpose I/O signals. Peripherals
such as modems, mass storage subsystems, CCD
cameras, data acquisition subsystems, and bar
code readers can easily be interfaced to the
CL-PS7500FE through these connections. For
example, the Cirrus Logic CS8900A Ethernet con-
troller can be easily attached for high-speed network
communications. The device also has direct con-
nections for a PS/2-style keyboard and a mouse as
well as a serial CD-quality stereo audio output.
FEATURES
(cont.)
CL-PS7500FE
System-on-a-Chip with CRT/LCD Controller
For high performance, the built-in memory controller
in the CL-PS7500FE supports EDO DRAMs.
DRAMs can interface directly to the CL-PS7500FE
in up to 4 separate banks for maximum design flex-
ibility.
Speed Grades
The CL-PS7500FE is available in two speed
grades:
q
ARM CPU running at 40 MHz; memory clock
running up to 64 MHz
q
ARM CPU running at 56 MHz; memory clock
running up to 64 MHz
Packaging
The CL-PS7500FE is available in a 240-pin MQFP
package.
ARM
Compatibility
The ARM processor architecture is quickly becom-
ing the industry's 32-bit standard. Investment pro-
tection in software and hardware designs is insured
with over 30 companies building products based on
this open, standard processor core. In addition, a
wide range of realtime kernels, sophisticated oper-
ating systems, and state-of-the-art application
development tools are available from third parties
worldwide.
System Design
As shown in the system block diagram below, simply
adding desired memory and peripherals to the
highly integrated CL-PS7500FE completes a high-
performance system board. All the interface logic is
integrated on-chip.
A CL-PS7500FEBased System
COLOR LCD
SVGA MONITOR
TV
HEADPHONES
CL-PS7500FE
240-PIN PQFP
2*PS/2 PORTS
2 ANALOG
INPUTS
VIDEO O/P
(RGB)
AUDIO O/P
(32 BIT)
KEYBOARD
MOUSE
GAMES DEVICE
(ANALOG)
FRONT PANEL:
STATUS LEDs
RUN/STANDBY SW
REALTIME CLOCK
CONFIG. MEMORY
(NON-VOL.)
DRAM
(4 MBYTE, TYP)
ROM
MODEM
ETHERNET
CS89XX
ENCODER
PAL/NTSC
MEMORY BUS
I/O PORT
CD-DAC
CS4333
ISA-STYLE
BUS
CL-PS7500FE
System-on-a-Chip with CRT/LCD Controller
Cirrus Logic, Inc.
Publications Ordering: 800/359-6414 (USA) or 510/249-4200
3100 West Warren Ave., Fremont, CA 94538
Worldwide Web:
http://www.cirrus.com
TEL: 510/623-8300 FAX: 510/252-6020
457500-003
Direct Sales Offices
Domestic
NORTHERN CA
Fremont
TEL: 510/623-8300
FAX: 510/252-6020
SOUTHERN CA
Los Angeles
TEL: 310/820-6489
FAX: 310/820-6180
NORTHWESTERN AREA
Portland, OR
TEL: 503/620-5547
FAX: 503/620-5665
SOUTH CENTRAL AREA
Austin, TX
TEL: 512/338-1831
FAX: 512/339-0196
CENTRAL AREA
Chicago, IL
TEL: 847/884-6750
FAX: 847/884-6795
MID-ATLANTIC AREA
Columbia, MD
TEL: 410/740-5654
FAX: 410/740-6961
SOUTHEASTERN AREA
Raleigh, NC
TEL: 919/859-5210
FAX: 919/859-5334
Boca Raton, FL
TEL: 561/395-1613
FAX: 561/395-1373
International
FRANCE
Paris
TEL: 33/1-48-12-2812
FAX: 33/1-48-12-2810
GERMANY
Herrsching
TEL: 49/81-52-92460
FAX: 49/81-52-924699
HONG KONG
Kowloon
TEL: 852-2376-0801
FAX: 852-2375-1202
JAPAN
Tokyo
TEL: 81/3-3340-9111
FAX: 81/3-3340-9120
KOREA
Seoul
TEL: 82/2-565-8561
FAX: 82/2-565-8565
SINGAPORE
TEL: 65/743-4111
FAX: 65/742-4111
TAIWAN
Taipei
TEL: 886/2-2718-4533
FAX: 886/2-2718-4526
UNITED KINGDOM
Bucks, England
TEL: 44/01628-472211
FAX: 44/01628-486114
Cirrus Logic...where Analog meets Digital
TM
Cirrus Logic is a premier supplier of precision linear circuits
and mixed-signal system-level chip solutions, the latter of
which demand high-performance mixed-signal processing,
embedded DSP, algorithms and firmware. The company's
products, sold under its own name and the Crystal
product
brand, enable high-volume applications in mass storage,
communications, consumer electronics and industrial markets.
With more than 800 patents (issued and pending), Cirrus
Logic continues to expand its intellectual property portfolio
through R&D investments. Approximately 40 percent of the
company's patents involve mixed-signal technology, a key to
innovating system-on-chip solutions. Over the past decade,
Cirrus Logic has achieved more than 50 industry firsts, many of
which have set new standards within their respective markets.
To learn how your Cirrus Logic can add high value and
differentiation to your products, contact one of our system and
applications specialists today.
Copyright
1999 Cirrus Logic, Inc. All rights reserved. Printed in USA.
Cirrus Logic, Inc. has made best efforts to ensure that the information con-
tained in this document is accurate and reliable. However, the information is
subject to change without notice and is provided "AS IS" without warranty of
any kind (express or implied). No responsibility is assumed by Cirrus Logic, Inc.
for the use of this information, nor for infringements of patents or other rights of
third parties. This document is the property of Cirrus Logic, Inc. and implies no
license under patents, copyrights, trademarks, or trade secrets. Furthermore,
no part of this publication may be used as a basis for manufacture or sale of
any items without the prior written consent of Cirrus Logic, Inc. The names of
products of Cirrus Logic, Inc. or other vendors and suppliers appearing in this
document may be trademarks or service marks of their respective owners,
which may be registered in some jurisdictions. A list of Cirrus Logic, Inc. trade-
marks and service marks can be found at http://www.cirrus.com.
PDF 
ZIP