yss915-m ETC-unknow, yss915-m Datasheet - Page 29

• Manufacturer Part Number: yss915-m
• Description: Karaoke Pracessor Video Disc Playor Kp2v2
• Manufacturer: ETC-unknow

YSS915
A procedure to change Normal mode to Through-mode
A. Change Normal mode (fs-single) to Through-mode (fs-double)
Normal mode means that it can apply the sound effect using internal DSP function and the sampling frequency is
between 32kHz and 48kHz in this mode.
Through-mode means that the digital input data fed to YSS915 is bypassed to digital output pin without processing
by DSP and the sampling frequency is 64kHz to 96kHz.
For example, when the sampling frequency is changed from 48kHz( called fs-single) to 96kHz( called fs-double),
master clock frequency fed to XI pin of YSS915 may be changed according to the fs(sampling frequency).
In this case please refer to the following procedure.
B. Change Through-mode (fs-double) to Normal mode (fs-single)
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Mute of Analog out
/IC of YSS915
XI of YSS915
Setting from microprocessor
to YSS915
Mute of Analog out
/IC of YSS915
XI of YSS915
Setting from microprocessor
to YSS915
Mute Analog output of the product
Set /IC=“0” of YSS915
Change the master clock frequency (XI of YSS915) from “single “ to “double”
Wait 2msec or more
Set /IC=“1”
Set the parameters from the microprocessor to YSS915 as followed
Disable to mute Analog output of the product
Mute Analog output of the product
Set /IC=“0” of YSS915
Change the master clock frequency (XI of YSS915) from “double“ to “single”
Wait 2msec or more
Set /IC=“1”
Set the parameters from the microprocessor to YSS915 as the same way after power on
opr [7:0] = 8’bxx00x0x1
mdr [7:0] = 8’b01100000
dar [7:0] = 8’b10xx01xx or 8’b10xx10xx or 8’b10xx11xx
single
double
x means don’t care
mute
mute
2msec min
2msec min
single
double
setting
setting
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