參數(shù)資料
型號(hào): SNC384
廠商: SONIX Technology Co., Ltd.
英文描述: Direct Drive Voice/Dual Tone Melody Controller
中文描述: 直接驅(qū)動(dòng)語音/雙音旋律控制器
文件頁數(shù): 4/11頁
文件大小: 405K
代理商: SNC384
SNC384
Direct Drive Voice/Dual Tone Melody Controller
5.6. Dual-Tone Generator
A dual-tone melody generator is included to generate 2-channel music songs with a
pleasant square-wave-like timbre. The pitch range of each tone generator is as wide
as 4 octaves (48 different notes totally). The output of dual-tone generator can be
mixed with the output of voice synthesizer to achieve voice playing with BGM
(background music). Additionally, Sonix provides a numbered-musical-notation
representation to help users compose their songs. Further, a MIDI (1.0) file translator
can convert MIDI files into Sonix format.
5.7. I/O Ports
P1 is a 4-bit input port and P2/P3/P6 are three 4-bit I/O ports. Any bit of P2, P3 and P6
can be programmed as either input or output port individually. Any valid data transition
(H
L or L
H) of P1, P2, P3 and P6 can reactivate the chip when the chip is in
power-down mode.
To Internal Data Bus
Read Control
PAD
Weak
Input Port Configuration (P10~P13)
Port Data
Port Status
To Internal Data Bus
Read Control
PAD
Weak
I/O Port Configuration (P20~P23, P30~P33, P60~P63)
Note: weak N-MOS’s can serve as pull-low resistor.
Ver: 1.2
December 26, 2002
4
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