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UPD780949 Datasheet(PDF) 28 Page - Renesas Technology Corp

Part # UPD780949
Description  MOS INTEGRATED CIRCUIT
PDF  69 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD780949 Datasheet(HTML) 28 Page - Renesas Technology Corp

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Figure 5-12: Block Diagram of the Sound Generator
5.7 Sound Generator
The sound generator will produce sounds composed of a rectangular frequency signal and a PWM signal
for volume control.
Internal Bus
SGO/SGOF/P34
Comparator
Comparator
1/2
1/2
S
R
Internal Bus
Internal Bus
SGOA/PCL/P33
CLK (FSYS)
To counter
Clear
fSG2
fSG1
SGBR=1
PWM @ Amplitude
SGCR
SGBR
SGAM
TCE
SGOB
SGCL2 SGCL1 SGCL0
SGBR3 SGBR2 SGBR1 SGBR0
SGAM6 SGAM5 SGAM4 SGAM3 SGAM2 SGAM1 SGAM0



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