SNL320
16-Bit LCD Controller
1.
INTRODUCTION
The SNL320 is a high performance 16-bit DSP base processor with 16MIPS CPU power. The
internal 64K words hi-speed ROM already built-in a hi-performance software voice synthesizer
to provides lot of voice effects. Such as hi-decompression engine to support from 1.5kbps ~
29kbps compression rate for speech and music, multi-channel voice synthesizer to provides
8-channel wave-table melody, or support foreground 1.5kbps~29kbps and background
4-channel wave-table melody.
The standard microprocessor interface allows SNL320 to extend its memory capability, or
connect external device. We also built-in a Low Voltage Detector circuit for power
management and a USB 1.1 interface for communication with PC.
2.
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FEATURES
Power supply:
2.4V ~ 3.6V (for 2 batteries application)
3.6V ~ 5.1V (for 3 batteries application)
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RAM size: 9k*16 bits (including LCD RAM)
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5K*16 SRAM size for general purpose
4K*16 for LCD display buffer
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Built-in regulator for DSP core
Built-in 16-bit DSP core
Software-based voice/melody processing
Rich Function Instruction Set
16 MIPS CPU performances under 16MHz
Clock system
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16MHz crystal or R-C type oscillator
for hi-speed system clock
32768HZ crystal oscillator for RTC
and low-speed system clock
Three 8-bit timers with auto-reload function
Programmable watchdog timer
LCD control interface
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Support 1-bit/4-bit LCD data bus for
external LCD driver
Share LCD display RAM with internal
SRAM, support 240x120 LCD display
screen
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H/W support maximum 4 gray-level
LCD display
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Extension bus
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Standard Byte-mode and Word-Mode
bus interface
4 chip select pins for external devices
(such as ROM, Flash, SRAM..etc)
Maximum 128M-bit addressing
capability for signal external memory
device
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Built-in 32768 crystal for Real Time Clock
Two voice/melody channels or 4 channels
wave-table melody
Built in Push-Pull direct drive circuit and
fixed current D/A output
Sampling Rate: 4KHz ~16KHz
Built-in software voice synthesizer for
multiple bit-rate solution
USB 1.1 interface provided
Low Voltage Detector
Low Voltage Reset
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I/O Ports: 36 I/O pins (P1.0~P1.15,
P3.0~P3.15, P4.0~P4.3)
ROM size: 64K*16 bits
9 Interrupt Sources
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5 internal interrupt (T0, T1, T2, RTC and USB)
3 external interrupt (P3.0~P3.2)
1 DA/Push-Pull output
Ver: 1.4
5
April 18, 2006
SONIX [ SONIX TECHNOLOGY COMPANY ]
