Renesas Technology Introduces SuperH(R) Microcontrollers That Simplify the Design of Digital Audio Products.SAN JOSE San Jose, city, United States San Jose (sănəzā`, săn hōzā`), city (1990 pop. 782,248), seat of Santa Clara co., W central Calif.; founded 1777, inc. 1850. , Calif. -- The 32-bit SH7261 SuperH Devices Provide Single-Chip Solutions for System Control and Audio Signal Processing Audio signal processing, sometimes referred to as audio processing, is the processing of a representation of auditory signals, or sound. The representation can be digital or analog. Functions and Support Various Audio Middleware Renesas Technology Renesas Technology Corporation (ルネサス テクノロジ| America, Inc. today announced four SH7261 series high-performance 32-bit microcontrollers (MCUs) for car and home audio products that have audio data playback functions compatible with various compression standards, especially those that record music data in compressed form on a disk drive. The new SuperH RISC RISC in full Reduced Instruction Set Computing Computer architecture that uses a limited number of instructions. RISC became popular in microprocessors in the 1980s. devices simplify systems because they have sufficient processing power and functionality to replace both the system controller and the DSP (1) (Digital Signal Processor) A special-purpose CPU used for digital signal processing applications (see definition #2 below). It provides ultra-fast instruction sequences, such as shift and add, and multiply and add, which are commonly used in math-intensive and LSI LSI: see integrated circuit. (Large Scale Integration) Between 3,000 and 100,000 transistors on a chip. See SSI, MSI, VLSI and ULSI. chips traditionally required for digital audio processing. To shorten product development time and enhance system versatility, the MCUs accommodate middleware for various audio formats (MP3, WMA (Windows Media Audio) An audio compression method from Microsoft. Known originally as MSAudio, this proprietary format competes with the MP3 and AAC methods. WMA encodes rapidly and is known to be especially effective at low bit rates. , AAC (Advanced Audio Coding) An audio compression technology that is part of the MPEG-2 and MPEG-4 standards. AAC, especially MPEG-4 AAC, provides greater compression and better sound quality than MP3, which also came out of the MPEG standard. (Advanced Audio Coding (audio) Advanced Audio Coding - (AAC) A successor to MP3, allowing lower bit rates and more stable quality. See MPEG-2 AAC Low Profile and MPEG-4 AAC Main Profile. ), etc.). Also, their high levels of processing performance allow coder-decoders to be implemented by software. All four SH7261 series devices have the new superscalar A CPU architecture that allows more than one instruction to be executed in one clock cycle. See pipeline processing. (architecture) superscalar - A superscalar architecture is a uniprocessor that can execute two or more scalar operations in parallel. SH2A-FPU CPU CPU in full central processing unit Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit. core with a built-in floating point unit (FPU (Floating Point Unit) A computer circuit that handles floating point operations. FPU - floating-point unit ), which performs fast arithmetic operations to offer excellent real-time control Real-time control is a popular term for a certain class of digital controllers. For effective digital control, it is critical that sample time be constant. Real-time control achieves nearly constant sample time. See also
MIPS (MIPS (Million Instructions Per Second) The execution speed of a computer. For example, .5 MIPS is 500,000 instructions per second; 100 MIPS is a hundred million instructions per second. ), 160 mega floating point operations per second (MFLOPS See megaFLOPS. 1. (unit) MFLOPS - megaflops. 2. (benchmark) MFLOPS - A benchmark which attemps to estimate a system's floating-point "MFLOPS" rating for specific FADD, FSUB, FMUL and FDIV instruction mixes. C Source. Results, ftp://ftp.nosc. ) and at 120MHz, it achieves 288 MIPS, 240 MFLOPS. The devices' instruction set is upward-compatible with the earlier SH-2 CPU cores, yet achieves better ROM code efficiency, helping to reduce program size by approximately 25 percent and thereby save memory cost. Key on-chip peripheral functions are a CD-ROM CD-ROM: see compact disc. CD-ROM in full compact disc read-only memory Type of computer storage medium that is read optically (e.g., by a laser). decoder that enables CD-ROM playback functions to be implemented simply by adding inexpensive external parts, and a dual-channel serial sound interface (SSI (1) See server-side include and single-system image. (2) (Small-Scale Integration) Less than 100 transistors on a chip. See MSI, LSI, VLSI and ULSI. 1. (electronics) SSI - small scale integration. 2. ) that handles digital audio data input and output. Two SH72611 models provide a 2-channel CAN controller, while two SH72612 models provide an IEBus(TM) controller. All offer many other built-in functions, too, such as a multifunction timer unit (MTU (1) (Maximum Transmission Unit, Maximum Transfer Unit) The largest frame size that can be transmitted over the network. For example, an Ethernet MTU is 1,500 bytes. Messages longer than the MTU must be divided into smaller frames. 2-type), 10-bit A/D converter (Analog/Digital converter) A device that converts continuously varying analog signals from instruments and sensors that monitor conditions, such as sound, movement and temperature into binary code for the computer. , 8-bit D/A converter, and serial communication interface with 16-stage first-in-first-out (FIFO (First In First Out) A storage method that retrieves the item stored for the longest time. Contrast with LIFO. See traffic engineering methods. FIFO - first-in first-out ). In combination with the control/audio processing capabilities of the CPU, these on-chip peripheral functions allow audio products to be built with fewer component parts at significantly less cost. To aid system design, the SH7261 devices have on-chip debugging functions, so real-time debugging can be carried out at the maximum operating frequency. The USB USB in full Universal Serial Bus Type of serial bus that allows peripheral devices (disks, modems, printers, digitizers, data gloves, etc.) to be easily connected to a computer. bus-powered E10A-USB debugging tool, which doesn't require an external power supply, is available for debugging tasks that require emulation, and the High-performance Embedded Workshop implements a comprehensive integrated software development environment. Driven by market needs, Renesas Technology continues to develop new MCUs that products offer higher speed, performance, and functionality. For example, we are developing a high-speed SH7261 version with a 200 MHz operating frequency, improving performance through the use of multiple CPU cores, and implementing further peripheral function enhancements including provision of CD servo control functions and a USB interface.
Maximum
Operating On-Chip Sample
Frequency Controller Price/
Product Name Type Name (Operating Availability
ambient
Temperature)
--------------- --------------- ------------- ----------- ------------
SH7261 SH72611 R5S72611P80FPV 80MHz CAN $16.2/
(-40 to +85 September
degrees C) 2005
--------------- ------------- ------------
R5S72611C120FPV 120 MHz $15.3/
(-20 to +70 September
degrees C) 2005
------- --------------- ------------- ----------- ------------
SH72612 R5S72612P80FPV 80 MHz IEbus $15.7/
(-40 to +85 September
degrees C) 2005
--------------- ------------- ------------
R5S72612C120FPV 120 MHz $14.8/
(-20 to +70 September
degrees C) 2005
------- ------- --------------- ------------- ----------- ------------
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 NYSE See: New York Stock Exchange :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
Specifications: Renesas Technology SH7261 32-bit RISC Microcontroller
with FPU, CD-ROM Decoder, SSI, etc.
Item SH7261 Specifications
-------- -------------------------------------------------------------
Product SH72611 SH72612
name
-------- ------------------------------ ------------------------------
Type R5S72611P80FPV R5S72611C120FPV R5S72612P80FPV R5S72612C120FPV
name
-------- -------------- --------------- -------------- ---------------
Power 3.3V
supply
voltage
-------- -------------------------------------------------------------
Oper- 80MHz, max. 120MHz, max. 80MHz, max. 120MHz, max.
ating
fre-
quency
-------- -------------- --------------- -------------- ---------------
Maximum At 80MHz operation: 192 MIPS (Dhrystone 1.1), 160MFLOPS
proc- At 120MHz operation: 288 MIPS (Dhrystone 1.1), 240MFLOPS
essing
perfor-
mance
-------- -------------------------------------------------------------
Oper- -40 to +85 -20 to +70 -40 to +85 -20 to +70
ating degrees C degrees C degrees C degrees C
ambient
-------- -------------- --------------- -------------- ---------------
CPU core SH2A-FPU
-------- -------------------------------------------------------------
CPU in- 112 (including FPU-related instructions)
struc-
tions
-------- -------------------------------------------------------------
On-chip 32Kbytes
RAM
-------- -------------------------------------------------------------
Cache 16Kbytes (separate 8KB instructions/8KB data, 4-way set
memory associative type)
-------- -------------------------------------------------------------
External Bus clock: 60MHz, max.
memory -------------------------------------------------------------
SRAM, SDRAM directly connectable by bus state controller
(BSC)
-------------------------------------------------------------
Address space: 64Mbytes x 6, 256Mbytes x 1
-------------------------------------------------------------
Data bus width: External 8/16/32 bits
-------- -------------------------------------------------------------
On-chip 16-bit timer (MTU2) x 6 channels
peri- -------------------------------------------------------------
pheral 8-bit timer (TMR) x 2 channels
func- -------------------------------------------------------------
tions A/D converter (10-bit resolution) x 8 channels
-------------------------------------------------------------
D/A converter (8-bit resolution) x 2 channels
-------------------------------------------------------------
Serial communication interface with 16-stage FIFO (SCIF) x 8
channels (asynchronous and synchronous communication
capability)
-------------------------------------------------------------
I2C bus interface x 3 channels
-------------------------------------------------------------
Serial sound interface (SSI) x 2 channels
-------------------------------------------------------------
CAN controller (RCAN-ET) x 2
channels ---
------------------------------ ------------------------------
--- IEBus controller x 1 channel
------------------------------ ------------------------------
CD-ROM decoder
-------------------------------------------------------------
Real-time clock (RTC)
-------------------------------------------------------------
User break controller (UBC)
-------------------------------------------------------------
On-chip debugging functions:
-- Advanced user debugger-II (AUD-II)
-- User debug interface (H-UDI)
-------------------------------------------------------------
Direct memory access controller (DMAC) x 8 channels
-------------------------------------------------------------
Interrupt controller (INTC)
-------------------------------------------------------------
Watchdog timer (WDT)
-------------------------------------------------------------
Clock pulse generator (CPG): Built-in PLL, maximum 16x
multiplication
-------- -------------------------------------------------------------
Power- Four modes: Sleep, Software standby, Deep standby, Module
down standby
modes
-------- -------------------------------------------------------------
Package 176-pin LQFP (24mm x 24mm)
-------- -------------------------------------------------------------
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