SNL320 Просмотр технического описания (PDF) - Sonix Technology Co., Ltd

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SNL320

16-Bit LCD Controller

Sonix Technology Co., Ltd 

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. FEATURES

♦ Power supply:

♦ RAM size: 9k*16 bits (including LCD RAM)

2.4V ~ 3.6V (for 2 batteries application)

− 5K*16 SRAM size for general purpose

3.6V ~ 5.1V (for 3 batteries application)

− 4K*16 for LCD display buffer

♦ Built-in regulator for DSP core

♦ Three 8-bit timers with auto-reload function

♦ Built-in 16-bit DSP core

♦ Programmable watchdog timer

♦ Software-based voice/melody processing

♦ LCD control interface

♦ Rich Function Instruction Set

− Support 1-bit/4-bit LCD data bus for

♦ 16 MIPS CPU performances under 16MHz

external LCD driver

♦ Clock system

− Share LCD display RAM with internal

− 16MHz crystal or R-C type oscillator

SRAM, support 240x120 LCD display

for hi-speed system clock

screen

− 32768HZ crystal oscillator for RTC

− H/W support maximum 4 gray-level

and low-speed system clock

LCD display

♦ Extension bus

♦ Built-in 32768 crystal for Real Time Clock

− Standard Byte-mode and Word-Mode ♦ Two voice/melody channels or 4 channels

bus interface

wave-table melody

− 4 chip select pins for external devices ♦ Built in Push-Pull direct drive circuit and

(such as ROM, Flash, SRAM..etc)

fixed current D/A output

− Maximum 128M-bit addressing

♦ Sampling Rate: 4KHz ~16KHz

capability for signal external memory

♦ Built-in software voice synthesizer for

device

multiple bit-rate solution

♦ I/O Ports: 36 I/O pins (P1.0~P1.15,

♦ USB 1.1 interface provided

P3.0~P3.15, P4.0~P4.3)

♦ Low Voltage Detector

♦ ROM size: 64K*16 bits

♦ Low Voltage Reset

♦ 9 Interrupt Sources

− 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

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