參數(shù)資料
型號(hào): S1C6S460D
元件分類(lèi): 微控制器/微處理器
英文描述: 4-BIT, MROM, 2 MHz, MICROCONTROLLER, UUC124
封裝: 4.69 X 4.68 MM, DIE-124
文件頁(yè)數(shù): 82/107頁(yè)
文件大?。?/td> 788K
代理商: S1C6S460D
68
EPSON
S1C6S460 TECHNICAL MANUAL
CHAPTER 10: SOUND GENERATOR
CHAPTER
10 SOUND GENERATOR
10.1 Configuration of Sound Generator
The S1C6S460 is capable of generating buzzer signals (BZ and BZ) to drive a piezo-electric buzzer.
The buzzer signal frequency may be selected by software from 8 types of signal divided from fOSC1
(32.768 kHz).
Also, digital envelope which is duty ratio controlled may be added to the buzzer signal.
In addition, 1-shot output circuit is built-in to output key operation check sound, and the like.
Figure 10.1.1 shows the sound generator configuration. Figure 10.1.2 shows the sound generator timing
chart.
256 Hz
32.768 kHz
[ENVRST]
[ENVRT]
[BZFQ0–BZFQ2]
[ENVON]
R43 (BZ)
R42 (BZ)
[R43]
[R42]
Output port
Envelope
addition circuit
Programmable
dividing circuit
Envelope generation
circuit
[ ]: Register
1-shot output circuit
[BZSHOT]
[SHOTPW]
Fig. 10.1.1 Configuration of sound generator
BZFQ0–2
ENVON
R43 (register)
BZ (R43 terminal)
BZ (R42 terminal)
Fig. 10.1.2 Timing chart of sound generator
10.2 Mask Option
(1) Selection can be made whether to output the BZ signal from the R43 terminal.
(2) Selection can be made whether to output the BZ signal from the R42 terminal.
However, if the BZ signal is not output the BZ signal cannot be output.
See Section 6.2, "Output Port" for details of the above mask option.
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