Cypress S6J3200 Series, Manual

Page: 411 / 1355

CHAPTER 18:Sound Generator
410 S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
3.
Operations
This chapter describes the Sound Generator operation.
The concept of Sound Generator operation is shown in the diagram as below.
Figure 3
-
1 The Operation of Sound Generator (Conceptual Diagram)
Set the various values in the register as follows:
Amplitude of start point (An)
-
to the Amplitude Data Register
(SGAR)
Frequency of a tone pulse signal (Fn)
-
to the Frequency Data Register
(SGFR)
Output number of a tone pulse signal per one cycle (TCn)
-
to the Time Cycle Register (SGTCR)
Time cycle number to assert interrupts (Nn)
-
to the Tone Output Number Register
Amplitude
Time
Amplitude Data Register: SG A R
Frequency Data Register: SG F R
Time Cycle Register: SG TC R
Tone Output Number Register: SG N R
Increase and Decrease Data Register: SG ID R
PWM Cycle Data Register: SG PC R
TC1 x
N1
TC2 x
N2
TC3 x
N3
TC4 x
N4
TC5 x
N5
TC6 x
N6
ID3 (Increment and Decrement of 1 time cycle)
A1
(Amplitude of start point)
TC5
F1
(
Frequency of a tone
pulse signal
)
A4 (Amplitude of start point)
Interrupt Interrupt Interrupt Interrupt Interrupt Interrupt
PC1
(
Cycle Number of
1 PWM cycle
)
(Time Cycle: Output number
of a tone pulse signal per
one cycle)
Nn
(Number: Time
cycle number to
assert interrupts)