參數(shù)資料
型號: S1C60N08F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 112/145頁
文件大?。?/td> 1118K
代理商: S1C60N08F0A0100
S1C60N08 TECHNICAL HARDWARE
EPSON
I-57
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Sound Generator)
4.11 Sound Generator
4.11.1 Configuration of sound generator
The S1C60N08 Series outputs buzzer signals (BZ, BZ) to drive the piezoelectric buzzer.
The frequency of the buzzer signal is software-selectable from eight kinds of demultiplied fOSC1. Further,
a digital envelope can be added to the buzzer signal through duty ratio control.
Figure 4.11.1.1 shows the sound generator configuration. Figure 4.11.1.2 shows the sound generator
timing chart.
256 Hz
fOSC1
[ENVRST]
[ENVRT]
[BZFQ0–BZFQ2]
[ENVON]
R10 (BZ)
R13 (BZ)
[R10]
[R13]
Output port
Envelope
addition circuit
Programmable
dividing circuit
Envelope generation
circuit
[ ] : Register
Fig. 4.11.1.1 Configuration of sound generator
SR
BZFQ0–2
ENVON
ENVRT
R10(register)
R13(register)
BZ(R10 terminal)
BZ(R13 terminal
register R10 control)
BZ(R13 terminal
register R13 control)
Fig. 4.11.1.2 Timing chart of sound generator
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