Renesas Technology Releases 600MHz SH7785 Superscalar 32-bit Microprocessor for Car Infotainment Systems and Other High-Performance Multimedia Applications
The 32-bit Device's High Speed and Advanced LCD Panel Controller
Make It Ideal for Versatile CIS Products That Offer 2D and 3D
Graphics Displays and Sophisticated Operating Features
SAN JOSE, Calif.—(BUSINESS WIRE)—Jan. 30, 2006—
Renesas Technology America, Inc. today announced the SH7785, a
32-bit microprocessor with a 600MHz maximum operating frequency that
sets a new speed record for the popular SuperH(R) family. The device
incorporates a top-end SH-4A superscalar CPU core with on-chip cache
and RAM that delivers 1 GIPS (giga instructions per second)
performance for fast program execution. It also has a floating-point
processing unit (FPU) that achieves 4.2 GFLOPS (giga floating-point
operations per second) performance for speeding up the generation of
3D graphics.
Main applications for the SH7785 are car infotainment system (CIS)
products and other multimedia systems that (1) process 2D and 3D color
graphics, (2) require powerful processing, and (3) can use the
versatile display capability provided at low cost by the multifunction
display unit built into the chip.
The SH7785 microprocessor offers 50 percent more speed and
enhanced functions compared with the SH7780, the 400MHz device used in
many CIS products now in production. The higher levels of performance
and functionality of the SH7785 are necessary to handle the rapidly
increasing sophistication and expanding features of the latest
multimedia systems. For example, a valuable new feature for a car
navigation system is one that shows an annotated 3D picture of what
the driver can see through the windshield, created based on the
vehicle's location and speed and direction of motion. Implementing
such a feature requires considerable processing power and excellent
display control -- both of which the SH7785 provides. Many other
intriguing features and exciting new applications can be enabled by
the new SuperH microprocessor, which saves development time and
resources through upward compatibility that allows the reuse of
application code written previously for other SuperH processors.
"The new SH7785 processor addresses the growing industry need for
increasingly sophisticated and versatile products which can also
reduce the number of system components to cut costs," said Paul Sykes,
marketing manager, automotive business unit, Renesas Technology
America, Inc. "Besides its powerful processing speed and sophisticated
multimedia functionality, the device also enables engineers to make
use of previously developed software assets, which is becoming an
increasingly important consideration for system developers."
The on-chip multifunction display unit can control multiple
overlapping display screens, etc. and is included in the SH7785 as an
LCD panel controller. It can produce a superimposed display of up to
three SVGA resolution (800 x 600 pixel) screens, or four WVGA
resolution (800 x 480 pixel) screens, or six 480 x 234 pixel screens.
It allows up to about 260,000 display colors for highly expressive
image and video displays. The display unit also offers other advanced
control capabilities, such as transparency processing and overwriting
of text information during streaming video playback.
Because multimedia systems with fast, high-quality displays
typically use external memory for a display data buffer, the SH7785
has a 300MHz, 32-bit dedicated bus. That bus can connect to high-speed
DDR2-SDRAM (Double Data Rate 2-Synchronous DRAM), providing a maximum
data transfer rate of 2.4 Gigabytes/second.
Besides the LCD panel controller, a variety of peripheral
functions are integrated into the SH7785 to simplify and reduce the
cost of embedded multimedia systems.
-- A hardware data translation accelerator useful for
moving-image playback provides high-speed execution of motion
compensation, color data format conversion, and more. Used in
combination with the display unit, it enables moving-image
playback and display to be performed by the SH7785 alone.
-- A PCI bus controller enables easy, flexible system expansions
that use existing inexpensive external PC peripherals. It also
enables the implementation of sophisticated display functions
via an external connection to a high-performance PCI-complaint
device with 3D display functions.
Other on-chip peripherals include a direct memory access
controller, interrupt controller, watchdog timer, various serial
interfaces, and an interface for connection to an audio CODEC IC.
The SH7785 includes an on-chip debugging function that lets
engineers perform real-time debugging at up to the device's 600MHz
maximum operating frequency. An E10A-USB on-chip debugging emulator is
available as a development environment and a full suite of software
tools is offered. In planning is an E200F full-spec emulator with
enhanced debugging functions. It will be compatible with the SSTL18
trace interface comprising the new AUD high-speed trace system.
The 19 mm x 19 mm, 436-pin BGA package of the SH7785
microprocessor is about 20 percent smaller than the current SH7780
package, aiding the creation of compact embedded systems. An
environment-friendly lead-free version of the BGA package is also
available.
Price and Availability
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Sample Price /
Product Name Type Name Package Availability
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SH7785 R8A77850ANBG 436-pin BGA (19 mm x 19 mm) $60.74/ May
------------------------------------------ 2006
R8A77850ANBGV 436-pin BGA (19 mm x 19 mm),
lead-free specification
----------------------------------------------------------------------
Reader contact
Readers can find additional product and contact information on the
Renesas Technology Web site at www.renesas.com.
About Renesas Technology Corp.
Renesas Technology Corp. designs and manufactures highly
integrated semiconductor system solutions for mobile, automotive and
PC/AV markets. Established on April 1, 2003 as a joint venture between
Hitachi, Ltd. (TOKYO:6501)(NYSE:HIT) and Mitsubishi Electric
Corporation (TOKYO:6503) and headquartered in Tokyo, Japan, Renesas
Technology is one of the largest semiconductor companies in the world
and the world's leading microcontroller supplier globally. Besides
microcontrollers, Renesas Technology offers flash memories,
system-in-package and system-on-chip devices, Smart Card ICs,
mixed-signal products, SRAMs and more. www.renesas.com
Note to Editors: A specification summary is included in this
release, and a photo and block diagram of the SH7785 microprocessor
are available.
Notes: 1. SuperH is a trademark of Renesas Technology Corp.
2. PCI (Peripheral Component Interconnect): A bus standard
standardized by the PCI Special Interest Group
Product names, company names, or brands mentioned are the property
of their respective owners.
Specifications: Renesas Technology SH7785 600MHz SuperH(R)
Microprocessor
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Item SH7785 Specifications
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Product type name R8A77850ANBG R8A77850ANBGV
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Power supply 1.1V (internal) / 3.3V (external), 1.8V (DDR2-SDRAM
voltage interface)
----------------------------------------------------------------------
Maximum operating 600MHz
frequency
----------------------------------------------------------------------
Processing 1.08 GIPS, 4.2 GFLOPS (at 600MHz operation)
performance
----------------------------------------------------------------------
CPU core SH-4A, Superscalar 32-bit RISC with cache and FPU
----------------------------------------------------------------------
On-chip RAM High-speed RAM: 8Kbytes + 16Kbytes; medium speed
RAM: 128Kbytes
----------------------------------------------------------------------
Cache memory 4-way set associative type, with separate 32Kbytes
for instructions
and 32Kbytes for data
----------------------------------------------------------------------
External DDR2-SDRAM memory controller:
memory/external
bus interfaces 16-bit or 32-bit bus-width connection of
DDR2-SDRAM
Maximum operating frequency: 300MHz
Local bus state controller:
SRAM, burst ROM, etc. connectable
8/16/32/64-bit bus width selectable
(Note: 64-bit bus width possible only when not
using PCI bus controller/display unit)
MPX bus and PCMCIA interface supported
Maximum operating frequency: 100MHz
PCI bus controller:
32-bit bus-width connection of external PCI
device
33 MHz/66MHz operation possible
External memory areas: 64Mbytes x 7 (max.)
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Main on-chip Display unit
peripheral ---------------------------------------------------
functions Data translation accelerator
---------------------------------------------------
Direct memory access controller x 12 channels
---------------------------------------------------
Serial communication interface with FIFO x 6
channels (max.)
---------------------------------------------------
Timer x 6 channels
---------------------------------------------------
Various sound interfaces
---------------------------------------------------
Interrupt controller
---------------------------------------------------
Clock pulse generator with built-in multiplication
PLL
---------------------------------------------------
On-chip debugging function
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Power-down modes DDR backup function, module standby function
----------------------------------------------------------------------
Package 436-pin BGA 436-pin BGA (19 mm x 19 mm),
(19 mm x 19 mm) lead-free specification
----------------------------------------------------------------------
Contact:
Renesas Technology America, Inc.
Akiko Ishiyama, 408-382-7407
Email Contact
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