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SN56340
4-Channel Speech Controller
========================== CONTENTS =========================== 1. 2. 3. 4. 5. INTRODUCTION............................................................................................................3 FEATURES ......................................................................................................................3 BLOCK DIAGRAM ........................................................................................................4 PIN ASSIGNMENT.........................................................................................................4 FUNCTION DESCRIPTIONS .......................................................................................5 5.1. 5.2. 5.3. 5.4. 5.5. 5.6. 5.7. 5.8. 5.9. 5.10. 5.11. 5.12. 5.13. 6. 7. 8. 9. OSCILLATOR ...............................................................................................................5 ROM ..........................................................................................................................5 RAM ..........................................................................................................................5 POWER DOWN MODE..................................................................................................5 SAMPLING RATE COUNTERS .......................................................................................5 AUTO REPETITION .......................................................................................................6 WAVE MARK ..............................................................................................................6 PUSH-PULL OUTPUT ....................................................................................................6 VOLUME CONTROL FUNCTION....................................................................................6 WATCH DOG ...........................................................................................................7 I/O PORTS...............................................................................................................7 PULL-LOW RESISTER CONTROL..............................................................................7 IR FUNCTION ..........................................................................................................7
ABSOLUTE MAXIMUM RATING ..............................................................................8 ELECTRICAL CHARACTERISTICS .........................................................................8 APPLICATION CIRCUIT .............................................................................................9 DISCLAIMER................................................................................................................11
Ver: 1.0
1
March 2,2005
SN56340
4-Channel Speech Controller
AMENDENT HISTORY
Version Ver 1.0 Ver 1.1 May 25,2005 Date First issue Add RST pin Description Description
Ver: 1.0
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March 2,2005
SN56340
4-Channel Speech Controller
1.
INTRODUCTION
SN56340 is a 340 seconds single chip 4-channel voice synthesizer IC which contains I/O pins and a tiny controller. By programming through the tiny controller, users' applications including section combination, trigger modes, output status, high performance melody, multiple voices, and other logic functions can be implemented.
2.
FEATURES
Single power supply 2.4V - 5.5V Built in a tiny controller 340 seconds voice capacity are provided 128*4 bits RAM are provided ROM Size - Maximum 1024K*10 bits ROM size - 64K program ROM is provided Readable ROM code data I/O Ports - Four 4-bit I/O ports P1, P2, P3, P6 - The driving/sink current of P3.2 & P3.3 are 8mA/16mA - The IO pins P3.3 can be modulated with 38.5Khz carry signal to implement IR function. Built in a high quality speech synthesizer Four independent voice channels Adaptive playing speed from 4k-40kHz is provided for all 4 channels individually Automatic repetition for every channel A 6-bit*8-bit Multiplier is embed to modulate the volume of synthesized voices Two digital mixers (with saturation control) are provided Built in an 8-level volume control Analog Push-Pull Direct Drive circuit. System clock: 2M Hz (RC-type or Crystal Option) Low Voltage Reset Built-in WDT function Built-in Event Mark Function
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SN56340
4-Channel Speech Controller
3.
Block Diagram
ROM
Program/Speech/Instrument waveform
Address Pointer PC/Data Pointer/Stack/Speech Pointer SRAM Timer ALU IO2 WDT
Timing Generator
OSC
Sampling Rate Counter Voice Synthesizer IO3 Push Pull IO6
IO1
4.
PIN ASSIGNMENT
Symbol P13, P12, P11, P10 P23, P22, P21, P20 P33, P32, P31, P30 P63, P62, P61, P60 VDD GND OSC/XIN XOUT CKSEL I/O I/O I/O I/O I/O I I I O I Function Description Bit3 ~ Bit0 of I/O port 1 Bit3 ~ Bit0 of I/O port 2 Bit3 ~ Bit0 of I/O port 3 Bit3 ~ Bit0 of I/O port 6 Positive power supply Negative power supply Oscillator / Crystal In Crystal Out / 1Khz output Clock type select `L' or floating RC oscillator `H' Crystal Positive Output of Push Pull Negative Output of Push Pull RST=1 Reset Chip (Active H)
BUO1 BUO2 RST
O O I
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SN56340
4-Channel Speech Controller
5.
FUNCTION DESCRIPTIONS
5.1. Oscillator
SN56000 series accepts crystal oscillator / ceramic resonator or RC type oscillator (selected by pin CKSEL) for system clock. The typical circuit diagrams for oscillator are listed as follows.
VDD VDD
SN56000
CKSEL OSC/XIN XOUT
15pf
SN56000
CKSEL OSC/XIN XOUT
2MHz
Crystal / Resonator
5.2. ROM
15pf
RC Oscillator
SN56340 contains 1M word (10-bit) internal ROM. Program, voices, melodies, data, and instrument waveforms share the same ROM with the others.
5.3. RAM
SN56000 series contains 128 nibble RAM. The 128 nibble RAM is separated into eight pages (page 0, page1... page 7). An implicit page indicator is utilized to specify page address. Eight instructions, PAGE0, PAGE1... PAGE7 can switch the page indicator. All 16 nibbles of each page can be accessed by direct mode (to specify M0 ~ M15 in the data transfer type instructions.)
5.4. Power Down Mode
"End" instruction will let SN56000 series enter power down mode and consumer very little amount of current. (<2uA @VDD=3V and <5uA @VDD=5V) After SN56340 enters power down mode, any valid data transition (L H or H L) occurring on any input ports or IO ports (P1, P2, P3 and P6) lead SN56000 series back to normal operation mode.
5.5. Sampling Rate Counters
4 independent sampling rate counters are dedicated to 4 individual voice channels to play voices with different playing rates. The playing rate is programmable from 4KHz to 40KHz. The resolution of sampling period of each sampling rate counter is 0.25 uS. This feature helps SN56000 series play sounds with accurate pitches in the case of music instrument synthesis.
Ver: 1.0
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March 2,2005
SN56340
4-Channel Speech Controller
5.6. Auto repetition
Auto repetition function helps SN56000 series realize a "looping" sound automatically by hardware without any software effort. Auto repetition function is a very useful mechanism to implement "Sustain" sound in instrument synthesis. All 4 channels are equipped with this function. Arbitrary lengths of looping sound are accepted by SN56000 series.
5.7. Wave Mark
This is a new function for SN56000 series, it allows user to add a special mark in wave data by the voice edit tool "CoolEdit", "Goldwav", "SoundForge". User can insert event tags in anywhere of his wave file and can easy to get this special code to do his special action during voice playing. That means, it should be easily to control the I/O (such as LED or Motor) and other actions to synchronize with voice.
5.8. Push-Pull output
A Push-Pull Direct Drive circuit is built-in SN56340. The maximum resolution of Push-Pull is 8 bits (8 bit structure with LSB set to 0). Two huge output stage circuits are designed in SN56340. With this advanced circuit, the chip is capable of driving speaker directly without external transistors.
5.9. Volume Control Function
Bit0~Bit2 of VOL Register is applied to control the volume of voice. The relationship between output current and mode2 register is listed in the following table (power on set to 111). Bit3 of VOL register provide for VOL Output division 2. Bit2 0 0 0 0 1 1 1 1 Bit1 0 0 1 1 0 0 1 1 Bit0 0 1 0 1 0 1 0 1 Output Volume 46.5 DB 52.2 DB 58.1 DB 63.9 DB 70.3 DB 77.2 DB 82.3 DB 88.0 DB
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SN56340
4-Channel Speech Controller
5.10. Watch Dog
This is a new function for SN56000 series. The WDT is cascade after system timer. When user reset system timer will issue a clear signal to WDT also. It would issue a reset signal to chip if user doesn't reset any system timer before it reach terminate count (1 Second) when chip is in active mode.
5.11. I/O Ports
P1/P2/P3/P6 are four 4-bit I/O ports. Any bit of P1/P2/P3/P6 can be programmed to be input or output individually. Any valid data transition (H L or L H) of P1, P2, P3 and P6 can reactivate the chip when it is in power-down stage.
Port D ata PAD Port Status W eak
Pull Low enable
To Internal Data Bus
Read C ontrol
I/O Port Configuration (P10~P13, P20~P23, P30~P33, P60~P63) Note: All weak N-MOS's can serve as pull-low resistors.
5.12. Pull-Low Resister Control
This function provides user to control Pull-Low register of all I/O ports that can be disabled by user command. With the help of this function, input floating and input pull low is supported.
5.13. IR Function
P33 can be modulated with 38.5KHz square wave before sent out to P33 pin. The IR signal can be achieved by this modulated signal.
Ver: 1.0
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March 2,2005
SN56340
4-Channel Speech Controller
6.
ABSOLUTE MAXIMUM RATING
Symbol VDD-V VIN TOP TSTG Min -0.3 VSS-0.3 0 -55.0 Max 6.0 VDD+0.3 55.0 125.0 Unit. V V o C o C
Items Supply Voltage Input Voltage Operating Temperature Storage Temperature
7.
ELECTRICAL CHARACTERISTICS
Sym. Min. Typ. Max. VDD 2.4 3.0 5.5 ISBY 2.0 IOPR 350 IOPR 4.4 Ii 3 Unit Condition V uA VDD=3V, no load uA VDD=3V, no load mA VDD=3V, Push-Pull turn on , no load uA VDD=3V
Item Operating Voltage Standby Current Operating Current Operating Current Input Current of P10~P13, P20~P23, P30~P33, P60~P63 Drive Current of P10~P13, P20~P23, P30~P31, P60~P63 Sink Current of P10~P13, P20~P23, P30~P31, P60~P63 Drive Current of P32~P33 Sink Current of P32~P33 Drive current of Buo1/Buo2 Sink Current of Buo1/Buo2 Oscillation Freq.
IOD
-
4
-
mA VDD=3V,VO=2.4V
IOS
-
6
-
mA VDD=3V,VO=0.4V
IOD IOS IBUD IBUS FOSC
-
8 16 80 80 2.0
-
mA VDD=3V,VO=2.4V mA VDD=3V,VO=0.4V mA VDD=3V,Buox=1.5V Sine wav Full Amplitude mA VDD=3V,Buox=1.5V Sine wav Full Amplitude MHz VDD=3V
Ver: 1.0
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4-Channel Speech Controller
SN56340
VDD TR1 VDD CKSEL 330K OSC/XIN XOUT P12 P13 P20 P30 P31 P21 P22 P23 P32 P60 P33 P61 P62 BUO1 BUO2 P63 P11 P10 TR2 TR6 TR10 TR14 TR5 TR9 TR13
TR17
TR21
TR25
TR29
TR18
TR22
TR26
TR30
TR3
TR7
TR11
TR15
TR19
TR23
TR27
TR31
SN56000
RST
TR4
TR8
TR12
TR16
TR20
TR24
TR28
TR32
APPLICATION CIRCUIT
System Clock: 2MHZ ROSC Keys: 32 Scan Keys
GND
GND
Ver: 1.0
8.
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March 2,2005
4-Channel Speech Controller
SN56340
VDD TR1 VDD CKSEL 20pf 2MHz OSC/XIN XOUT 20pf P13 P20 P21 P30 P31 P22 P23 P60 P61 P33 P62 BUO1 BUO2 P63 P12 P11 TR3 P10 TR2 TR6 TR10 TR14 TR18 TR5 TR9 TR13 TR17
TR21
TR25
TR29
TR22
TR26
TR30
TR7
TR11
TR15
TR19
TR23
TR27
TR31
TR4
TR8
TR12
TR16
TR20
TR24
TR28
TR32
SN56000
RST
System Clock: 2MHZ Crystal Keys: 32 Scan Keys
P32
GND GND
Ver: 1.0
10
March 2,2005
SN56340
4-Channel Speech Controller
9.
DISCLAIMER
The information appearing in SONIX web pages ("this publication") is believed to be accurate. However, this publication could contain technical inaccuracies or typographical errors. The reader should not assume that this publication is error-free or that it will be suitable for any particular purpose. SONIX makes no warranty, express, statutory implied or by description in this publication or other documents which are referenced by or linked to this publication. In no event shall SONIX be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever, including, without limitation, those resulting from loss of use, data or profits, whether or not advised of the possibility of damage, and on any theory of liability, arising out of or in connection with the use or performance of this publication or other documents which are referenced by or linked to this publication. This publication was developed for products offered in Taiwan. SONIX may not offer the products discussed in this document in other countries. Information is subject to change without notice. Please contact SONIX or its local representative for information on offerings available. Integrated circuits sold by SONIX are covered by the warranty and patent indemnification provisions stipulated in the terms of sale only. The application circuits illustrated in this document are for reference purposes only. SONIX DISCLAIMS ALL WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE. SONIX reserves the right to halt production or alter the specifications and prices, and discontinue marketing the Products listed at any time without notice. Accordingly, the reader is cautioned to verify that the data sheets and other information in this publication are current before placing orders. Products described herein are intended for use in normal commercial applications. Applications involving unusual environmental or reliability requirements, e.g. military equipment or medical life support equipment, are specifically not recommended without additional processing by SONIX for such application.
Ver: 1.0
11
March 2,2005

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