WTS701EF WINBOND [Winbond], WTS701EF Datasheet
WTS701EF
Related parts for WTS701EF
WTS701EF Summary of contents
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WINBOND SINGLE-CHIP TEXT-TO-SPEECH PROCESSOR The information contained in this datasheet may be subject to change without notice the responsibility of the customer to check the Winbond USA website (www.winbond-usa.com) periodically for the latest version of this document, and ...
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GENERAL DESCRIPTION The WTS701 is a high quality, fully integrated, single-chip Text-to-Speech solution that is ideal for use in applications such as automotive appliances, GPS/navigation systems, cellular phones and other portable products or accessories. The WTS701 product accepts ASCII ...
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FEATURES • Fully Integrated Solution Single-chip compact text-to-speech translation No algorithm development required Selectable digital and analog audio output Simple SPI interface Reprogrammable solution enables loading different voice or language • Text-To-Speech Algorithm Characteristics High quality speech synthesis using ...
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BLOCK DIAGRAM 3.1. WTS701 B LOCK CS\ SS\ SPI INTERFACE MOSI MISO SCLK R/B\ INT\ XTAL1 CLOCK XTAL2 GENERATION HIGH VOLTAGE GENERATION REFERENCE GENERATION AUXIN AUX AMP Power Conditioning CCA SSA SSA SSD SSD ...
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WTS701 T A YPICAL PPLICATIONS CS\ SS\ MOSI HOST Controller MISO SCLK R/B\ INT\ Figure 2. WTS701 Configuration for Digital (CODEC) Environment. CS\ SS\ MOSI HOST Controller MISO SCLK R/B\ INT\ Figure 3. WTS701 Configuration for Analog Environment Baseband ...
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TABLE OF CONTENTS 1. GENERAL DESCRIPTION.................................................................................................................. 2 2. FEATURES ......................................................................................................................................... 3 3. BLOCK DIAGRAM .............................................................................................................................. 4 3.1. WTS701 Block Diagram ............................................................................................................... 4 3.2. WTS701 Typical Applications....................................................................................................... 5 4. TABLE OF CONTENTS ...................................................................................................................... 6 5. PIN CONFIGURATION ....................................................................................................................... 8 6. ...
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Converting Text..................................................................................................................... 43 7.5 SPI Interface ................................................................................................................................ 46 7.5.1 SPI Transactions................................................................................................................... 46 7.6 CODEC Interface......................................................................................................................... 49 7.7 Control Characters....................................................................................................................... 52 7.7.1 Phonetic Alphabet Playback ................................................................................................. 52 7.7.2 Speed Change ...................................................................................................................... 54 7.7.3 Volume Change .................................................................................................................... 55 7.7.4 Case Sensitivity..................................................................................................................... ...
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PIN CONFIGURATION The following sections detail the pins of the WTS701 processor. Table 1 shows all the pins and the signals that use them in different configurations. It also shows the type and direction of each signal ...
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PIN DESCRIPTION Table 1. WTS701 Pin Signal Assignment. PIN NO. SYMBOL 2,36,44 VSSA 3 VCLK 4 VFS 5 VDX 6 MISO 7 XTAL2 8 XTAL1 9,10 VSSD 11,12 VCCD 13 INT 14 MOSI SCLK 25 CS ...
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PIN NO. SYMBOL 27 RESET 40 ATTCAP I/O 42 SP- 46 SP+ 48 VCCA 52 AUXIN 54 AUXOUT 1,17- NC 24,28- 35,37- 39,41,43, 45,47,49- 51,53,55- 56 Note: TYPE I:Input, O:Output, I/O bi-directional, P:Power, G:Ground I/O I Global reset signal. AutoMute ...
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FUNCTIONAL DESCRIPTION As a real System-On-Chip solution, the WTS701 performs the overall control functions for host controller and text-to-speech processing. The WTS701 system architecture consists of the following functions: • Serial interface to monitor the SPI port and interpret ...
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EXT O PEECH ECHANISM The text to speech component of the system consists of three principal blocks: • Text normalization • Word to phoneme conversion • Phoneme mapping 7.1.1 Text Normalization Text normalization involves the ...
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P I HYSICAL NTERFACE The following sections describe the physical pin properties and the timing associated with the physical interface to the device. Note that all input pins are 3V and 5V tolerant, except for the CS signal which ...
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Power Down Mode Upon application of power, the WTS701 will enter the RESET state and then POWER DOWN state. In the POWER DOWN mode, only Class0 SPI commands are valid. (See subsection 7.3.1). The Power Down ...
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SPI Interface Communications with the WTS701 is conducted over the SPI serial communications port. The device responds to a command when the Chip Select signal ( LOW and addressed by an active LOW signal on the ...
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Flow Control Interface In addition to the SPI interface, the WTS701 has two control lines to facilitate data transfer and host communications. The INT (interrupt) pin is used by the WTS701 to request an interrupt service from the host ...
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VFS (CODEC Synchronization Line) The CODEC synchronization line supplies a frame synchronization signal to the internal CODEC. This is a digital input. After receipt of a synchronization pulse, the CODEC will output data on the VDX line. The VFS line ...
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Input AUD Register 1 V AIG1 P-P 0.694 0 0.491 0 0.347 1 0.245 1 1 OTLP Input is the reference Transmission Level Point that is used for testing. This level is typically 3 dB below clipping ...
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R ESET 7 OMMUNICATION ROTOCOL The WTS701 is controlled by a series of SPI transactions to send commands to the device. The general format of an SPI transaction is shown in command word. The command word consists of ...
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Command Classes The SPI transactions to the WTS701 fall into four classes. The four classes represent variations in how the command, and any associated data, is handled. The class of a command is defined by the two most significant ...
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Status Register The WTS701 has a sixteen-bit status register whose value is returned to the host controller during the command word. For class 2 commands, the status register is repeatedly returned every two bytes. This status register provides the ...
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Byte Bit Name Bit # RDY 0 CNVT 1 BEMP 2 BFUL 3 4 COD ICNV 5 IBUF 6 ICNT 7 ICMD 0 IABB bits are reserved. 7.3.3 Interrupt Handler If an interrupt has occurred, ...
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BCNT -- Byte Count Register The byte count register (BCNT tool for the host to keep track of where in a conversion the WTS701 is. When a new conversion is started, the byte count register is reset ...
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Status Commands The WTS701 has three read-only registers accessed by the opcodes, which are shown to the right. • The Read Status Register returns the device’s operational status and the numbers of bytes that have been converted. • The Read ...
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Synthesis Commands The synthesis commands affect the text-to-speech synthesis. They are detailed in the table to the right. The basic commands are: • Start a conversion • Pause the conversion • Resume the conversion • Stop the conversion • Finish ...
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Customization Commands The WTS701 has the ability for the user to customize the way in which it responds to certain text strings. This is done by way of abbreviation table. customization opcodes allow the user to interrogate and modify the ...
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PWUP Class Byte Sequence: Host controller WTS701 Description: Wake up the WTS701 processor to IDLE state. CONV Convert The convert command starts the text to speech conversion process. The convert command is followed by ASCII text data. The device has ...
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The stop command (ST) will cause the WTS701 to immediately stop converting, flush the buffer and enter the wait state. Once the wait state has been entered the device will clear the convert (CONV) bit from the status register ...
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ST S TOP This command immediately stops conversion without finishing buffer, and clears the buffer. ST Class Byte Sequence: Host controller WTS701 Description: Stop conversion. FINW F W INISH ORD This command directs the WTS701 to finish text conversion at ...
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IDLE I DLE This command is executed after the receipt of an end-of-conversion interrupt (ICNV) has occurred. The IDLE command will deactivate all audio outputs and bring the device to the IDLE state. IDLE Class Byte Sequence: Host controller WTS701 ...
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RINT R I EAD NTERRUPT The Read Interrupt command reads the status word of the device, it also clears the status interrupt request flags at the end of the transaction result of this command, all interrupt bits are ...
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SCOD S COD R ET EGISTER Set the COD (CODEC control) configuration register to value 0xNN. The Default value of this register after Power-Up or Reset is 0x01. Refer to subsection Configuration Registers, which describes all register bits. SCOD Class ...
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SSPD S SPD R ET EGISTER Set the SPD (speech rate/speed) configuration register to value 0xNN. The Default value of this register after Power-Up or Reset is 0x02. Refer to subsection Configuration Registers, which describe all register bits. SSPD Class ...
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VLUP OLUME P OMMAND Increment the volume (VOL) register. Has no effect if already at maximum volume. The Default value of this register after Power-Up or Reset is 0x07. Refer to subsection Configuration Registers, which describes all ...
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SPDN PEED OWN Decrease speaking rate (SPD register). Has no effect if already at minimum speaking rate. The Default value of this register after Power-Up or Reset is 0x02. Refer to subsection Configuration Registers, which describes all ...
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ABBR_MEM R A ETURN BBREVIATION The ABBR_MEM command will return the number of bytes available in the abbreviation table in MEM_HI and MEM_LOW. ABBR_MEM Class 3 Byte Sequence: Host controller WTS701 Description: Return the number of bytes available in the ...
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ABBR_DEL D A ELETE BBREVIATION This command deletes abbreviation entry from abbreviation table. ABBR_DEL Class 2 Byte Host controller Sequence: WTS701 Description: Delete an entry from the abbreviation table. ENTER_RRSM S M WAP EMORY This command is used in programming ...
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Register Reg. # Default COM 0x4E 0x00 COD 0x4F 0x01 AUD 0x50 0x43 VOL 0x51 0x07 CLC 0x14 None SPD 0x52 0x02 X = Reserved. The bits of each register are described below: COM Register ICNT If set to a ...
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COD Register MD2 CODEC enable, possible modes are: 0b: CODEC disabled. 1b: CODEC enabled during conversion. MD1 CODEC precision, possible modes are: 0b: 13 bit linear PCM output 1b: 16 bit linear PCM output. MD0 CODEC output format, possible modes ...
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VOL Register VL2..0 Volume level of output. 000 – 0dB 001 – -4dB 010 – -8dB 011 – -12dB 100 – -16dB 101 – -20dB 110 – -24dB 111 – -28dB Each step gives a 4dB attenuation of output. CLC ...
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System Operation The WTS701 is a single chip solution for text-to-speech synthesis. The Text-to-Speech operation is accomplished by a process of screening the incoming text to normalize common abbreviations and numbers into a spoken form. The normalized text is ...
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RESET The WTS701 processor is initialized to the RESET state when Vcc is first applied to the part. After a reset condition the device enters the POWER DOWN state. All configuration registers are initialized to their default values after issuing ...
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Initialization and Configuration Configuration After power- Reset command (RST) the WTS701 processor can be configured for operation. This involves initializing the internal configuration registers for the users requirements. Table 11. Initialization Commnad Sequence State Command POWER DOWN ...
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The user has the choice of enabling interrupts to signal the host when there is free space in the internal buffer. When all text data has been sent, the user must indicate this by: 1. Sending a FIN (Finish) command ...
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IDLE Send CONV command Fill serial buffer with text data No Sent all data? Wait for IBUF interrupt Write a new batch of text data to buffer ( < 192 bytes otherwise buffer may overflow) Figure 11. Flow Diagram for ...
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Controlling Text Conversion The WTS701 offers several features to control text conversion. The PAUS (Pause) and RES (Resume) commands allow the host to pause and then continue speech output. The FINW command allows the host to end a conversion after ...
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SSB SCLK MOSI MISO Type II – Two Word Transactions that Receive Data Type II transactions are four byte transactions that read out the byte count register. As these commands are all Class0, ICMD will never be active and R/ ...
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Command Byte SSB SCLK MOSI MISO Data n (even) SSB SCLK MOSI R/B MISO Type IV – Transactions reading data Type IV ...
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CODEC I NTERFACE The WTS701 processor supports analog and digital telephony in various configurations. The WTS701 can be used in digital environments, along with a DSP that controls a CODEC. Therefore, the WTS701 is configured to operate in slave ...
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Level Signed Mode (2’s Complement) Sign 13 Bit Mode Bit (MSB) +ve full scale 0 1111 1111 1000 +1 LSB 0 0000 0000 1000 Zero (ground) 0 0000 0000 0000 -1 LSB 1 1111 1111 1000 -ve full scale 1 ...
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VFS MSB Figure 17. CODEC Protocol, 13 bit, Long Frame Sync. VFS MSB Figure 18. CODEC Protocol, 16 bit, Short Frame Sync ...
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MSB Figure 19. CODEC Protocol, 16 bit, Long Frame Sync. 7 ONTROL HARACTERS The WTS701 allows receiving control characters embedded in the text sent in the Convert ...
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Table 14. Acceptable Phoneme Symbols. Vowels Phoneme Hex Value i 0x69 I 0x49 e 0x65 E 0x45 @ 0x40 u 0x75 U 0x55 o 0x6f c 0x63 a 0x61 A 0x41 R 0x52 O 0x4f Y 0x59 W 0x57 x ...
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Numbers 1 and 0 represent stress: each word has a single 1 stress, representing the main stress of the word; all other syllables have 0 stress. Examples: Input Phonetic translation hi. h1Y (phoneme /h/, followed by a 1-stress vowel phoneme ...
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Volume Change The speech volume can be changed by sending SPI command to modify the speed or by adding control character to control the volume in real-time. 0x16 ^V Volume Change Flag. A space character is required after the ...
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C A USTOMIZING BBREVIATIONS The WTS701 has support for entering and using custom abbreviations in addition to the general abbreviation table supported internally by the WTS701. There are 2K bytes of flash memory reserved for this purpose. After the ...
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Example: TTS,text to speech; After this is added using the ABBR_ADD command, when the text “TTS” is sent as part of the convert data, the WTS701 will speak “text to speech” instead Note: ...
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After abbreviation entry deletion, the abbreviation entry is only deleted from the table and not used, however it still holds memory space. The only way to free all memory will be to reprogram the WTS701 firmware into the device. 7.9 ...
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EXT O PEECH Status Commands Command Description RDST 0 II Read Status RINT 0 II Read Interrupt RVER 0 II Read version C – Q ROCESSOR OMMMANDS Opcode Hex Previous State Idle, Convert ...
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System Commands Command Description 0 I Exit Power PWUP Down mode Power PWDN Down mode RST 0 I Reset Opcode Hex Previous Result State State 02 00 Power Idle Down 40 00 Idle, Power Convert Down ...
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Synthesis Commands Command Description CONV 2 III Convert text PAUS 1 I Pause conversion RES 1 I Resume conversion Stop conversion FINW 1 I Finish word FIN 1 I Finish VLUP 1 I Volume up VLDN 1 ...
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Configuration Commands Command Description RREG 3 IV Read configuration register SCOM 1 I Set COM register SCOD 1 I Set COD register SAUD 1 I Set AUD register SVOL 1 I Set VOL register SSPD 1 I Set SPD register ...
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Customization Commands Command Description ABBR_ 3 IV Return NUM number abbreviation entries ABBR_ 3 IV Read RD abbreviation table ABBR_ 3 IV Return MEM abbreviation memory ABBR_ 2 III Add ADD abbreviation ABBR_ 1 I Delete DEL abbreviation entry ENTER ...
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Text Input Format The following table lists the ASCII characters acceptable by the WTS701E (English software version). Please refer to the specific language User’s Guide for more details regarding characters accepted and other development considerations. Note: Unexpected behavior may ...
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Buffer length limit The max. character length of a white-space-bounded string is 53. The exceeding characters will be truncated. 7.10.3. Undefined characters All the undefined characters will be deleted (prior to the word pornunciation process). The difined characters range ...
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TIMING WAVEFORMS 8.1 SPI T D IMING IAGRAM SS T sss T sclkhigh SCLK T T dih dis MOSI T pd TRISTATE MISO SS BIT 7 SCLK R/B T sclklow Figure 20. SPI Timing Specification. BIT 0 Figure 21. ...
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Table 16. SPI Timing Parameters (see Symbol Parameters T SSS SS Setup Time T SSH SS Hold Time T Data in Setup Time DIS T Data in Hold Time DIH T Output Delay PD T Output Delay to hiZ DF ...
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CODEC T D IMING IAGRAMS t fsp VFS VCLK VDX MSB Figure 22. CODEC Timing — Short Frame Sync. t fsp VFS VCLK VDX MSB Figure 23. CODEC Timing -- Long ...
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Table 17. CODEC Timing Parameters (see Symbol Parameters T Bit clock frequency clk T Frame Sync. Frequency sync D Clock Duty Cycle C T Rise Time ir T Fall Time if T Frame Sync. Pulse Width fsp T Receive Sync. ...
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ABSOLUTE MAXIMUM RATINGS Table 18. Absolute Maximum Ratings (Packaged Parts) Junction temperature Storage temperature range Voltage Applied to any pin Voltage applied to any pin (Input current limited to +/-20 mA) Lead temperature (soldering – 10 seconds ...
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ELECTRICAL CHARACTERISTICS = ° 3.3V 0V PARAMETER SYMBOL Input LOW Voltage V IL Input HIGH Voltage V IH Output LOW Voltage ...
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Table 21. Speaker Driver Specifications. PARAMETER SYMBOL SP+/- Output Voltage V SPHG (HIGH Gain Setting) SP+/- Output Load Imp. R SPLG (LOW Gain) SP+/- Output Load Imp. R SPHG (HIGH Gain) SP+/- Output Load CS P Cap. SP+/- Output Bias ...
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PARAMETER SYMBOL AUXOUT – Maximum V ANAIUT Output Swing Minimum Load R L Impedance Maximum Load C L Capacitance AUXOUT V BIAS Table 23. Volume Control Parameters. PARAMETER SYMBOL Output Gain A OUT Absolute Gain Table 22. AUXOUT Parameters. TEST ...
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TYPICAL APPLICATION CIRCUIT The following schematic diagrams are extracted from the WTS-ES701 evaluation board schematic. The evaluation system includes the following basic clusters: WTS701 processor cluster working with 3.3V, including an 8-ohm speaker, SPI connector to the host PC ...
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PACKAGE DRAWING AND DIMENSIONS 56 L TSOP(I) (14X20 MM) Publication Release Date: May 2003 - 75 - WTS701 Revision 3.09 ...
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ORDERING INFORMATION WTS701__ __ /__ Language E – English M – Mandarin For the latest product information, access Winbond’s worldwide website at http://www.winbond-usa.com Voice Package Type F – Female T – TSOP 56-leads M – Male - 76 - ...
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VERSION HISTORY VERSION DATE PAGE 3.07 Apr. 2002 1-73 3.08 Jun. 2002 1-73 3.09 May 2003 all The contents of this document are provided only as a guide for the applications of Winbond products. Winbond makes no representation or ...