Mitsubishi Expands Its Universal Serial Bus Microcontroller Line by Adding a Full-Speed, Highly Integrated, 16-Bit Device to the M16C Family.SUNNYVALE, Calif.--(BUSINESS WIRE)--June 7, 1999-- Supports Both Self-Powered and Bus-Powered PC Peripherals; Conforms to 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. Version 1.1 Specification Mitsubishi Electronics America's Electronic Device Group today announced the M16C/24 (M30240), the first product in a new family of 16-bit Universal Serial Bus See USB. (hardware, standard) Universal Serial Bus - (USB) An external peripheral interface standard for communication between a computer and external peripherals over an inexpensive cable using biserial transmission. (USB) compatible microcontrollers that has been added to the M16C product line. The M16C/24 can be used in a wide range of sophisticated full-speed (12 megabit per second A megabit per second (abbreviated as Mbit/s, Mbps, or mbps) is a unit of data transfer rate equal to 1,000,000 bits per second. Because there are 8 bits in a byte, a transfer speed of 8 megabits per second (8 Mbps) is equivalent to 1,000,000 bytes ) USB peripherals -- whether they are self-powered or bus-powered -- including joystick, mouse, keyboard, scanner and printer applications. The device conforms to USB Version 1.1, which gives developers access to the most advanced USB specification available for designing their USB-compliant PC peripheral products. The M16C/24 16-bit USB microcontroller is the newest edition to the M16C/20 group and extends into the 16-bit range Mitsubishi's diverse line of 8-bit USB peripheral microcontrollers: the M37640 for full-speed applications, and the M37536 and M37532 for low-speed (1.5 megabit per second) applications. "USB provides the easiest way for end-users to make their PCs the hub of many home and business activities, which is why so many manufacturers are adopting it in their PC peripheral products," said Eric Nguyen, microcontroller marketing manager at Mitsubishi Electronics America Inc. "Mitsubishi added a 16-bit device to its broad line of USB microcontrollers so manufacturers could make even their most powerful peripherals USB-compliant." "Our goal was to offer a USB microcontroller with a feature set that is conducive to reducing system component count and minimizing the user's system development time," said Calin Pasca, microcontroller design manager at Mitsubishi Electronics America. "We considered USB system power constraints, system-level noise and electrostatic discharge immunity because we know they are among the key concerns of a hardware designer." The M16C/24 microcontroller offers a host of high-end USB features. A high-speed five-endpoint USB function controller supports all USB transfer types -- isochronous Time dependent. Real time voice, video and telemetry are examples of isochronous data. (communications) isochronous - /i:-sok'rn-*s/ A form of multiplexing that guarantees to provide a certain minimum data rate, as required for time-dependent data such as video or audio. , bulk, control and interrupt -- with 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 sizes from 32 bytes to 128 bytes. The bulk data rate of the 128-byte endpoint supports the maximum possible data transfer rate of 19 64-byte packets per frame. Two internal DMA (1) (Digital Media Adapter) See digital media hub. (2) (Document Management Alliance) A specification that provides a common interface for accessing and searching document databases. channels provide an efficient way of transferring data between the USB FIFOs and other USB peripherals. The high integration of the M16C/24 saves designers from having to squeeze additional components into their peripheral products and helps reduce overall system-level electromagnetic interference (EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. ). The device integrates a phase lock loop (PLL PLL - phase-locked loop ) that provides the 48-MHz clock frequency needed for the USB block, a DC-to-DC converter that eliminates the need for an external 3.3-volt power supply, and an analog transceiver that meets the USB Version 1.1 specification. Other key characteristics of the M16C/24 include: -0- -- Device operates in "USB Suspend" mode -- 40 Kbytes to 128 Kbytes of ROM -- 3 Kbytes to 5 Kbytes of RAM -- 12-MHz internal and 24-MHz external clock frequencies -- Cyclic Redundancy Check (CRC) calculation circuit -- 10-bit x 8-channel A-D converter -- 8 "key-on wake-up" pins -- 4 LED drivers and 5 current drivers -- Eight 16-bit timers and one 15-bit watchdog timer -- 3 UARTs -- 4 external, 21 internal, and 4 software interrupt sources -0- Development and Debugging Tools Mitsubishi supplies customers with a complete in-circuit emulator environment for developing the M16C/24 microcontroller, which along with hardware/software building blocks and proactive application engineering support, makes it easy for designers to focus on developing their applications. Designers may develop firmware using Mitsubishi's AS30 assembler or NC30WA C compiler. Mitsubishi offers the PC4701HS in-circuit hardware emulator, which comes with the PD30 Windows(R) based debugger. IAR Systems and Tasking have developed an ANSI C compiler, and CMX CMX Corel Presentation Exchange (file extension) CMX Cisco Mobile Exchange CMX Cloaca Maxima (sewage system of ancient Rome; Finnish rock band) CMX Crisis Management Exercise , ESP (1) (Enhanced Service Provider) An organization that adds value to basic telephone service by offering such features as call-forwarding, call-detailing and protocol conversion. and Bytebos have developed RTOSs to support the M16C family. About the M16C Family Originally introduced in 1996, Mitsubishi's M16C family is a line of compact, 16-bit microcontrollers that combine the advantages of both register and accumulator-based architectures to provide high-speed processing with RISC-like performance. Targeted for a wide range of applications, the M16C family features low power consumption, an easy-to-use instruction set, and an architecture that is optimized for C programming efficiency. For designs requiring "system-on-chip" application-specific microcontrollers, the M16C 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 can be integrated with customer ASICs and a variety of digital and analog macros offered by Mitsubishi Electronics America. In addition, the M16C is designed with the industry's first masked ROM program correction function. This address-match interrupt scheme allows designers to correct a faulty mask ROM program via an external EEPROM (Electrically Erasable Programmable ROM) A rewritable memory chip that holds its content without power. Although EEPROMs spawned flash memory, EEPROMs are byte addressable at the write level, whereas flash chips must erase a block of bytes before rewriting. . This means that software bugs found after the internal ROM is masked at the factory can easily be corrected without remanufacturing the microcontroller from the mask ROM, saving both cost and time. About the Universal Serial Bus Universal Serial Bus (USB) is a new, one-size-fits-all plug-and-socket connection for adding a wide variety of peripherals to desktop PCs, notebooks and NetPCs. Examples of USB peripherals include digital cameras, joysticks, keyboards, mice, scanners, speakers and videophones. USB is plug and play, meaning users don't need to adjust system settings, insert add-in cards or restart the computer when adding peripherals. PC users can also easily add or remove up to 127 devices on a PC by using USB "hub" peripherals like monitors and keyboards that have more USB ports. Since its founding in 1995, the USB Implementers Forum The USB Implementers Forum, USB-IF, is a non-profit organisation to promote and support the Universal Serial Bus. Its main activities are the promotion and marketing of USB, Wireless USB, USB On-The-Go, and the maintenance of the specifications, as well as a compliance program. (IF) has grown from seven to more than 450 members and includes the world's leading computer hardware and software manufacturers. USB founders include Compaq Computer, Digital Equipment Corporation, IBM (International Business Machines Corporation, Armonk, NY, www.ibm.com) The world's largest computer company. IBM's product lines include the S/390 mainframes (zSeries), AS/400 midrange business systems (iSeries), RS/6000 workstations and servers (pSeries), Intel-based servers (xSeries) , Intel, Microsoft, NEC (NEC Corporation, Tokyo, www.nec.com, www.necus.com) An electronics conglomerate known in the U.S. for its monitors. In Japan, it had the lion's share of the PC market until the late 1990s (see PC 98). NEC was founded in Tokyo in 1899 as Nippon Electric Company, Ltd. and NorTel. For more information on USB, including the technical specification, new products and frequently asked questions, please visit the USB home page (http://www.usb.org). Packaging, Availability and Pricing The M16C/24 is available in an 80-pin QFP (Quad FlatPack) A square, surface mount chip package that has leads on all four sides and comes in several varieties. PQFP (Plastic QFP) may refer to all of the following QFP types. All quad flatpacks use gull-wing leads, except for the CQFP, which stick straight out. package with a 0.8-mm pitch. M16C/24 samples will be available in August 1999 for the 40-Kbyte (M30240M5-XXXFP) and 48-Kbyte (M30240M6-XXXFP) mask ROM versions, and the 128-Kbyte OTP (1) (One Time Programmable) Refers to programming content or logic into chips such as EPROMs and EEPROMs, which cannot be reversed. See antifuse. (2) (One Time P ROM version (M30240EC). Volume production is scheduled for the fourth quarter of 1999. Pricing for the M30240M5-XXXFP is $5.30 each in 10,000-unit quantities. About Mitsubishi Electric and Mitsubishi Electronics America Mitsubishi Electric Corporation ranks among the top-five worldwide suppliers of 8- and 16-bit microcontrollers, is a founding member of EEMBC EEMBC EDN Embedded Microprocessor Benchmark Consortium (Electronic Design News Magazine) , and is a member of the USB Implementers Forum. The company markets its microcontroller products in North America through the Electronic Device Group of Mitsubishi Electronics America Inc. Mitsubishi Electric Corporation and its North American affiliate, Mitsubishi Electronics America Inc., are world-class suppliers of semiconductors and electronic products for computers, communications, industrial, Internet-enabled, automotive, and visual applications. Mitsubishi combines its systems-level expertise and high-level silicon process technologies to provide chip, chipset and system-on-chip solutions. The company is ranked among the top-tier worldwide semiconductor suppliers and offers an extensive range of semiconductor and computer system components for the North American marketplace, including embedded DRAM/flash/SRAM, ASIC (Application Specific Integrated Circuit) Pronounced "a-sick." A chip that is custom designed for a specific application rather than a general-purpose chip such as a microprocessor. , ASSP (Application Specific Standard Part) An ASIC chip that is designed as a generic device for a particular market. Whereas an ASIC is typically used only by its creator, ASSPs are used by many different companies in the design of their products. See ASIC. , MCU, discrete memory, graphics, microwave/RF, optoelectronic, storage, and flat-panel display products. Additional information on the Mitsubishi Electric Semiconductor Group is available at http://www.mitsubishichips.com. Trademark Information Mitsubishi and the Mitsubishi logo are registered trademarks of Mitsubishi Electric Corporation in the U.S.A., Japan and other countries. Windows is a registered trademark of Microsoft Corporation. All other companies and products referenced herein are trademarks or registered trademarks of their respective holders. KEYWORDS: Mitsubishi, semiconductor, electronics, microcontroller, M16C, Universal Serial Bus, USB. |
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