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Preliminary ============ CONTENTS ============
SNC749
16-bit Voice Processor
1. INTRODUCTION ..............................................................................................................................3 2. FEATURES.........................................................................................................................................3 3. PIN ASSIGNMENT ...........................................................................................................................4 4. ROM TABLE......................................................................................................................................6 5. RAM TABLE ......................................................................................................................................7 6. SYSTEM CLOCK ..............................................................................................................................8 6.1 CRYSTAL INPUT .................................................................................................................................8 6.2 ROSC INPUT ......................................................................................................................................8 7. I/O PORT ............................................................................................................................................9 8. TIMER/COUNTER .........................................................................................................................10 9. PUSH-PULL DAC............................................................................................................................11 10. REGULATOR ................................................................................................................................11 11. ABSOLUTE MAXIMUM RATINGS...........................................................................................12 12. ELECTRICAL CHARACTERISTICS ........................................................................................12 13. APPLICATION CIRCUIT............................................................................................................13 14. BONDING PAD..............................................................................................................................15
Ver. 1.8
1
March 6, 2007
Preliminary History
Version 1.0 1.1 1.2 1.3 Release Date 8/29/2006 8/31/2006 9/6/2006 9/7/2006 1. First release. 1. Add contents page. 1. Add electrical characteristics descript. 1. Modify feature descript error. 2. Redefine pin name. 3. Modify system clock descript. 4. Modify electrical characteristics. 5. Add history page. 6. Add Bonding PAD map. 1. Add Application circuit. 1. Remove current DAC function. 1. Remove current DAC output pin. 1. Add ROSC application circuit. 1. Modify application error. 2. Add Regulator section. Descript
SNC749
16-bit Voice Processor
1.4 1.5 1.6 1.7 1.8
1/16/2007 01/25/2007 02/26/2007 03/01/2007 03/06/2007
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Preliminary
SNC749
16-bit Voice Processor
1. INTRODUCTION
The SNC749 is a simply chip base on new DSP technology. SNC749 provide simply and easy control functions for system manufactory. SNC749 also is a high performance voice IC. That is built-in 64K word high speed ROM, and by different model to built-in 64K word, 448K words low speed ROM, the maximum program size is full ROM size include high-speed and low-speed ROM. The SNC749 have three timer, one real time clock and one watchdog timer and built-in a hi-performance software synthesizer to provide lot of voice effects, such as hi-decompression engine to support from 1.5Kbps ~ 32Kbps compression rate for speech and music, multi-channel voice synthesizer to provide 12-channel wave table melody.
2. FEATURES
Power supply: 2.4V ~ 3.6V (for 2 batteries application) 3.6V ~ 5.1V (for 3 batteries application) Built-in a new 16-bit DSP core with 16 MIPS CPU performance Software-based voice/melody processing Rich Function Instruction Set System Clock - 16MHz crystal or R-C type oscillator for system clock I/O Ports: - 24 I/O pins (P0.0~P0.15, P1.0~P1.7) - P0.15 with IR carrier signal RAM size: 4K*16 bits ROM size: 512KW - High performance program ROM: 64K*16 bits - Low speed ROM: 448KW Maximum program size: Full ROM Size 3 Timer, 1 RTC, 1 WDT - Timer With Individual pre-scalar and auto-reload function - RTC with 0.25/0.5/1 sec period - Watchdog Timer 9 Interrupt Sources - 4 for Internal Timer (timer0, 1, 2 and RTC) - 4 for External (P0.0~P0.3) - 1 for DA (Push Pull DAC) Two voice channels / 12 melody channels Three 8-bit timer with auto-reload function Built in a 10-bit Push-Pull DAC direct drive circuit Internal regulator provided
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Preliminary
SNC749
16-bit Voice Processor
Low Voltage Reset Low Voltage Detect Sampling Rate: 8KHz ~16KHz Built-in software voice synthesizer (LRC51.5K, 1.72K, 2K, 2.4K, 3K, 4K DRC5K, 6K SN8K MSADPCM35K PCM80K AUDIO32_16K16K, 20K, 24K, 28K, 32K) Built-in software melody synthesizer includes the dual-tone melody and 12-channel wave-table melody.
3. PIN ASSIGNMENT
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Symbol Test VSSIO2 CVSS RST CKSEL VDDIO2 CVDD REGOUT VSSA XIN XOUT LXIN LXOUT VDDA NC P0.0 P0.1 P0.2 P0.3 VSSIO0 P0.4 P0.5 P0.6 P0.7 VDDIO0 P0.8 P0.9 P0.10 P0.11 VSSIO0 I/O I I I I I I I O I I O I O I I/O I/O I/O I/O I I/O I/O I/O I/O I I/O I/O I/O I/O I Descriptions Test Pin for testing using Negative power supply Negative power supply for core circuit Chip reset Crystal/RC-type oscillator select for high speed clock Positive power supply Positive power supply for core circuit Regulator voltage output Negative power supply High speed clock crystal input High speed clock crystal output Low speed clock crystal input Low speed clock crystal output Positive power supply I/O Port 0 I/O Port 0 I/O Port 0 I/O Port 0 Negative power supply I/O Port 0 I/O Port 0 I/O Port 0 I/O Port 0 Positive power supply I/O Port 0 I/O Port 0 I/O Port 0 I/O Port 0 Negative power supply
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Preliminary
SNC749
16-bit Voice Processor
Pin No. 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
Symbol P0.12 P0.13 P0.14 P0.15 P1.0 P1.1 P1.2 P1.3 VDDIO1 P1.4 P1.5 P1.6 P1.7 VSSIO1 VSSPP BP0 VDDPP BN0 VSSPP
I/O I/O I/O I/O I/O I/O I/O I/O I/O I I/O I/O I/O I/O I I O I O I I/O Port 0 I/O Port 0 I/O Port 0 I/O Port 0 I/O Port 1 I/O Port 1 I/O Port 1 I/O Port 1
Descriptions
Positive power supply I/O Port 1 I/O Port 1 I/O Port 1 I/O Port 1 Negative power supply Negative power supply Push Pull output 1 Positive power supply Push Pull output 2 Negative power supply
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Preliminary
SNC749
16-bit Voice Processor
4. ROM TABLE
The total ROM size is 512K words. It split two parts including high speed and low speed ROM area, but user also can program all area. In high speed ROM had a small OS to control all function flow. We recommend user put you program in high speed ROM and put data in low speed ROM to get high performance.
0x000000 High Speed ROM (64K W ords)
0x00FFFF 0x010000
0x07FFFF
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Total ROM Size 512K Words
Low Speed ROM (448K W ords)
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Preliminary
SNC749
16-bit Voice Processor
5. RAM TABLE
Total RAM size is 4K words, and each one bank is 256 words. The RAM size 0~3K words is for algorithm using and last 1K words is for user using.
0x00A 000 0x00A 0FF 0x00A 100
B ank 0 B ank 1 B ank 2 B ank 3 B ank 4 B ank 5 B ank 6 B ank 7 B ank 8 B ank 9 B ank 10
R eserve for O S and V oice A lgorithm use
0x00A B FF 0x00A C 00
B ank 11 B ank 12 B ank 13 B ank 14 B ank 15
0x00A FFF
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Free for U ser
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Preliminary
SNC749
16-bit Voice Processor
6. System Clock
The system clock had dual source high clock and low clock input, user can selected from 16Mhz crystal or ROSC for high clock and 32768 crystal for low clock. In Normal mode, user can select high clock source from 16Mhz crystal or ROSC, In Slow mode, user must select 32768 crystal to input system clock.
6.1 Crystal Input
GND CKSEL
High Clock
Low Clock
6.2 ROSC Input
User uses ROSC mode to make High clock. The internal clock is reference clock from 32768 X'tal to fine tune to 16MHz. So, when ROSC mode is select, the 32768 X'tal must provide reference clock to system.
VDD
CKSEL
C7 LXIN
NC
XIN 15 PF C8 Y2 32768 LXOUT 15 PF
NC
XOUT
HIGH Clock
LOW Clock
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Preliminary
SNC749
16-bit Voice Processor
7. I/O PORT
SNC749 provides one a 24-bit I/O port for user application (P0.0~P0.15, P1.0~P1.7). The input pull high resistor of each pin can be programmed by Port Pull-High register. The direction of I/O port is selected by Port Direction register. The Port0 (P0.0~P0.15) and Port1 (P1.0~P1.7) can wake the chip up from the stop mode and watch mode. P0.15 can be modulated with a 38.5Khz carry signal to realize IR signal transmission. When user uses GPIO to wake up chip, the GPIO must setting to input mode and Pull-High all I/O pin.
Pull-Up Resister
Pull-Up Select In/Out Control
PAD
Latch
to internal bus
In/Out Control
I/O Configuration of P0.0~P0.15
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Preliminary
SNC749
16-bit Voice Processor
Pull-Up Resister
Pull-U Select
PAD
Digital In Input Control
Input Port Configuration of Port 1 (P1.0~P1.7)
IREN P0.15 Overflow Timer2 2 P0.15 Modulated with a carry signal
I/O Pad
8. TIMER/COUNTER
SNC749 provides three 8-bit timer/event counters (T0/T1/T2). Each timer is 8-bit binary up-count timer with pre-scalar and auto-reload function. Timer 0 (T0) is used when voice playing, so user should avoid to use T0.
(system clock)/2*
/2 /4 /8
Enable
TnC (8-bit)
If equal, Time out
MU
8-bit Up Counter
comparator
/256
Pre-scalar
clear
Auto-reload
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Preliminary
SNC749
16-bit Voice Processor
9. Push-Pull DAC
To play out voices, SNC749 only contains Push-Pull DAC (direct drive) for user to output voice.
10. Regulator
The SNC749 provide a linear regulator for core power (CVDD). The accuracy output voltage is 2.8V0.2V and it can be power-downed by software.
Features: Input supply voltage: 3.6V ~ 5.1V Dropout voltage of 0.8V at 20mA output current: Output current: 20mA Power down current: <1uA Accuracy output voltage: 2.6~2.8V
Application circuit:
STPMD ReguPD
Power Down
SNC7x9
3 1
VDD
VDD(4.5V) C1 10uF
ON/OFF
VIN
CVDD VOUT C2 104 VOUT_REG
Regulator
2
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Preliminary
SNC749
16-bit Voice Processor
11. ABSOLUTE MAXIMUM RATINGS
Items Supply Voltage Input Voltage Operating Temperature Storage Temperature Symbol VDD-V VIN TOP TSTG Min -0.3 GND-0.3 0 -55.0 Max 6.0 VDD+0.3 55 125.0 Unit. V V o C o C
12. ELECTRICAL CHARACTERISTICS
Item Operating Voltage Standby current Operating Current Watch mode Current Slow mode Current Pull-Up resistor of P0, P1 Input current of P0, P1 Drive current of P0, P1 Sink Current of P0, P1 Drive current of Buo1 Sink Current of Buo1 Drive Current of Buo2 Sink Current of Buo2 Oscillation Freq. (crystal) Sym. Min. Typ. Max. Unit Condition VDD 2.4 3.6 V VDD 3.6 5.1 V ISBY 2.0 uA VDD=3V, no load IOPR 10 mA VDD=3V, no load IWCH 12 uA VDD=3V,9instructions ISL 250 uA VDD=3.3V, no load RPU 800 K VDD=3V, no load IIH 10.0 uA VDD=3V,VIN=3V IOD 4 mA VDD=3V,VO=2.4V IOS 6 mA VDD=3V,VO=0.4V IOD 150 mA VDD=3V,Buo1=1.5V IOS 150 mA VDD=3V,Buo1=1.5V IOD IOS FOSC 150 150 16.0 mA VDD=3V,Buo2=1.5V mA VDD=3V,Buo2=1.5V MHz VDD=3V
-
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Preliminary
SNC749
16-bit Voice Processor
13. Application Circuit X'TAL
U1 VDD 47 C14 0.1u LS2 C2 47u/10V 49 45 46 48 Push-Pull 1 VDD R2 220K SW17 2 4 VCC 7 C12 C13 C3 47u/10V 0.1u 0.1u 3 8 5 VDD C11 0.1u 25 VDD 6 C16 47u/10V C15 0.1u 2 Test P1.4 VDDIO2 P1.3 VSSIO2 RST_ CVDD CVSS REGOUT CKSEL XIN VDDIO0 XOUT LXIN 11 12 P1.2 P1.1 P1.0 VDDA VSSA VDDPP VDDIO1 VSSPP VSSPP BP0 BN0 VSSIO1 P1.7 VDD 39 44 43 42 41 40 38 37 36 35 14 9 10 C9 47u/10V XIN Y1 TXC 16M XOUT LXIN Y2 32768 LXOUT 13 LXOUT 20pF C8 20pF C6 C7 20pF C10 0.1u 1 SW8 1 SW7 1 SW6 1 SW5 1 SW4 1 SW3 1 SW2 1 SW1 VDD 2 2 2 2 2 2 2 2 1 2 C10 47u/10V 2 C4 0.1u VDD
1
1.5V BT2 VCC
SNC749 real chip
P1.6 P1.5
BT1 3V
1
C5 20pF
C1 47u/10V 20 30 VSSIO0 VSSIO0 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6
1 SW9 1 SW10 1 SW11 1 SW12 1 SW13 1 SW14 1 SW15 1 D1 SW16 D2 D3 D4 D5 D6 D7 D8
2 2 2 2 2 2 2 2
NC P0.7 P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15
15
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Preliminary
SNC749
16-bit Voice Processor
ROSC
U1 VDD 47 C14 0.1u LS2 C2 47u/10V 49 45 46 48 Push-Pull 1 VDD R2 220K SW17 2 4 VCC 7 C12 C13 C3 47u/10V 0.1u 0.1u 3 8 VDD 5 VDD C11 0.1u 25 VDD 6 C16 47u/10V C15 0.1u 2 Test P1.4 VDDIO2 P1.3 VSSIO2 RST_ CVDD CVSS REGOUT CKSEL XIN VDDIO0 XOUT LXIN 11 12 NC LXIN Y2 32768 LXOUT 13 LXOUT 20pF C8 C7 20pF P1.2 P1.1 P1.0 VDDA VSSA VDDPP VDDIO1 VSSPP VSSPP BP0 BN0 VSSIO1 P1.7 VDD 39 44 43 42 41 40 38 37 36 35 14 9 10 NC C9 47u/10V C10 0.1u 1 SW8 1 SW7 1 SW6 1 SW5 1 SW4 1 SW3 1 SW2 1 SW1 VDD 2 2 2 2 2 2 2 2 1 2 C10 47u/10V 2 C4 0.1u VDD
1
1.5V BT2 VCC
SNC749 real chip
P1.6 P1.5
BT1 3V
1
C1 47u/10V 20 30 VSSIO0 VSSIO0 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6
1 SW9 1 SW10 1 SW11 1 SW12 1 SW13 1 SW14 1 SW15 1 D1SW16 D2 D3 D4 D5 D6 D7 D8
2 2 2 2 2 2 2 2
NC P0.7 P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15
15
NC
Note: The SNC749 total have 6 powers, each power use one 47uF and one 0.1uF capacitor. If user wants to save cost, you can use 0.1uF on each power and add 47uF on VDDPP and VDDA. Ver. 1.8
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Preliminary
SNC749
16-bit Voice Processor
14. Bonding PAD
TEST VSSIO2 CVSS RST
1 2
(0,0)
49 48
VSSPP Bn0 VDDPP Bp0 VSSPP VSSIO1 P1.7 P1.6 P1.5 P1.4 VDDIO1 P1.3 P1.2 P1.1 P1.0
3 4 47 46
CKSEL VDDIO2 CVDD REGOUT
5 6 7 8
45 44 43 42 41
VSSA XIN XOUT LXIN LXOUT VDDA NC
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
40 39 38 37 36 35
33 34
P0.0
P0.1
P0.2
P0.3
VSSIO 0
P0.4
P0.5
P0.6
P0.7
VDDI O0
P0.8
P0.10
P0.9
P0.11
VSSI O0
P0.13
P0.12
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P0.15
P0.14
Preliminary
SNC749
16-bit Voice Processor
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March 6, 2007

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