SN66030B
4-Channel Speech Controller
3
Block Diagram
ROM
Program/Speech/Melody/Instrument waveform
96K×12 bits
Address Pointers/ STACK
SRAM (128 nibbles)
Sampling Rate Counter
×
4
Timing
Generator
OSC
DA8-bit
DA8-bit
IO4
IO1
Timer
ALU
IO2
Voice
Synthesizer
IO3
4
PIN ASSIGNMENT
Symbol
P13, P12, P11, P10
P23, P22, P21, P20
P33, P32, P31, P30
P43, P42, P41, P40
VDD
GND
OSC/XIN
XOUT
CKSEL
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
O
I
I
I
O
I
Bit3 ~ Bit0 of output port 4
Positive power supply
Negative power supply
Oscillator / Crystal In
Crystal Out
Clock type select
‘L’ or floating
→
RC oscillator
‘H’
→Crystal
D/A current output, for channel 1 and 2
D/A current output, for channel 3 and 4
2
VO1
VO2
O
O
Ver: 1.1
December 6, 2004
SONIX [ SONIX TECHNOLOGY COMPANY ]
