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MSP50C614
Mixed-Signal Processor
User’s Guide
SPSU014
January 2000
Printed on Recycled Paper
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IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infr
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Preface Read This First About This Manual This user’s guide gives information for the MSP50C61 mixed-signal proces- sor. This information includes a functional overview, a detailed architectural description, device peripheral functional description, assembly language instruction listing, code development tools, applications, customer informa- tion, and electrical characteristics (in data sheet). This document also contains information for the MSP50C604 and MSP50C605, which are in the Product Pre
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Notational Conventions version of the special typeface for emphasis; interactive displays use a bold version of the special typeface to distinguish commands that you enter from items that the system displays (such as prompts, command output, error messages, etc.). Here is a sample program listing: 0011 0005 0001 .field 1, 2 0012 0005 0003 .field 3, 4 0013 0005 0006 .field 6, 3 0014 0006 .even Here is an example of a system prompt and a comman
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Information About Cautions and Warnings Unless the list is enclosed in square brackets, you must choose one item from the list. Some directives can have a varying number of parameters. For example, the .byte directive can have up to 100 parameters. The syntax for this di- rective is: .byte value [, ... , value ] 1 n This syntax shows that .byte must have at least one value parameter, but you have the option of supplying additional value parameters, separated by commas. Information About Cautio
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vi
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Contents Contents 1 Introduction to the MSP50C614 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 Features of the C614 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.3 Development Device: MSP50P614 . . . . . . . . . .
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Contents 3.1.1 General-Purpose I/O Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.1.2 Dedicated Input Port F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 3.1.3 Dedicated Output Port G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 3.1.4 Branch on D Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 4.4.8 Class 8 Instructions: Logic and Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41 4.4.9 Class 9 Instructions: Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42 4.5 Bit, Byte, Word and String Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44 4.6 MSP50P614/MSP50C614 Computational Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49 4.7 Hardware Loop I
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Contents 5.9.10 String Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45 5.9.11 Constant Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47 5.10 Implementation Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48 5.10.1 Comparisons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents B.3.5 Host Write Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5 B.3.6 Host Read Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5 B.3.7 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7 B.4 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figures Figures 1–1 Functional Block Diagram for the C614 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 1–2 Oscillator and PLL Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 1–3 RESET Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 1–4 MSP50C614 100 Pin PJM PLastic Package Pinout . . . . . . . . .
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Figures 5–9 Select Program Folder Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 5–10 Copying Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 5–11 Setup Complete Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 5–12 Open Screen . . . . . . . . . . . . . . . . . . . . . .
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Tables Tables 1–1 Signal and Pad Descriptions for the C614 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 1–2 MSP50C614 100-Pin PJM Plastic Package Pinout Description . . . . . . . . . . . . . . . . . . . . . 1-11 2–1 Signed and Unsigned Integer Representation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2–2 Summary of C614’s Peripheral Communications Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 2–3 Progra
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Tables 4–25 Class 4d Instruction Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35 4–26 Class 5 Instruction Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36 4–27 Class 5 Instruction Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36 4–28 Class 6a Instruction Encoding . . . . . . . . . . . . . . . . . . . .
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Notes, Cautions, and Warnings Notes, Cautions, and Warnings MSP50C605 and MSP50C604 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 PGA Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 ROM Locations that Hold Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18 Inst
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Chapter 1 Introduction to the MSP50C614 The MSP50C614 (C614) is a low cost, mixed signal controller, that combines a speech synthesizer, general-purpose I/O, onboard ROM, and direct speaker-drive in a single package. The computational unit utilizes a powerful new DSP which gives the C614 unprecedented speed and computational flexibility compared with previous devices of its type. The C614 supports a variety of speech and audio coding algorithms, providing a range of options with respect to speec
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Features of the C614 1.1 Features of the C614 Advanced, integrated speech synthesizer for high quality sound Operates up to 8 MHz (performs up to 8 MIPS) Very low-power operation, ideal for hand-held devices Low voltage operation, sustainable by three batteries Reduced power stand-by modes, less than 10 m A in deep-sleep mode Supports high-quality synthesis algorithms such as MELP, CELP, LPC, and ADPCM Contains 32K words onboard ROM (2K words reserved) 640 words RAM 40 general
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Applications 1.2 Applications Due to its low cost, low-power needs, and high programmability, the C614 is suitable for a wide variety of applications incorporating I/O control and high- quality speech: Talking Toys Talking Books Electronic Learning Aids Talking Dictionaries Games Warning Systems Talking Clocks Equipment for the Handicapped Introduction to the MSP50C614 1-3
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Development Device: MSP50P614 1.3 Development Device: MSP50P614 The MSP50P614 is an EPROM based version of the MSP50C614, and is available in 120 pin windowed ceramic pin grid array. This EPROM based version of the device is only available in limited quantities to support software development. Since the MSP50P614 program memory is EPROM, each person doing software development should have several of these PGA packaged devices. The MSP software development tool supports non-real-time debugging by
