SNC363
Direct Drive Voice/Dual Tone Melody Controller
3 Block Diagram
ROM
Program/Speech
96K×10 bits
Address Pointers/ STACK
Timing
OSC
Generator
Sampling
Dual-Tone
Generator
SRAM (128 nibbles)
Rate Counter
PWM
D/A
IO3
Voice
ALU
Synthesizer
IO1
IO2
4 PIN ASSIGNMENT
Symbol
P13 ~ P10
P23 ~ P20
P33 ~ P30
VDD
I/O Function Description
I
Bit3 ~ Bit0 of Input port 1
I/O Bit3 ~ Bit0 of I/O port 2
I/O Bit3 ~ Bit0 of I/O port 3
P
P
I
O
O
O
Positive power supply
Negative power supply
Reset pin (active high)
Oscillator / Crystal Out
Positive Output of PWM or DA output
Negative Output of PWM
GND
RST
OSC
BUO1/VO
BUO2
2
Ver: 1.4
June 8, 2005
SONIX [ SONIX TECHNOLOGY COMPANY ]
