ML22Q573 datasheet(42/69 Pages) ETC2

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FEDL22Q553-02

ML22Q553

10. MUON command

command

CH3

CH2

CH1

CH0

1st byte

2nd byte

The MUON command allows inserting a silence between two playback phrases.

The command can be input

when the NCR signal on the target channel is at a “H” level.

Set the silence time length after inputting this command.

It can be set for each channel.

The MUON

command allows specifying multiple channels at one time.

Setting any bit(s) from CH0 to CH3 to “1” plays

silence on the corresponding channel(s).

Channel settings

Channel

CH0

Setting this bit to “1” inserts a silence on channel 0.

CH1

Setting this bit to “1” inserts a silence on channel 1.

CH2

Setting this bit to “1” inserts a silence on channel 2.

CH3

Setting this bit to “1” inserts a silence on channel 3.

Be sure to set the channel setting bits( CH0-CH3).

As the silence length (M7–M0), a value between 20 ms and 1024 ms can be set at 4 ms intervals (252 steps in

total).

The equation to set the silence time length is shown below.

The silence length (M7–M0) must be set to 04h or higher.

tmu=(2

7×(M7)+26×(M6)+25×(M5)+24×(M4)+23×(M3)+22×(M2)+21×(M1)+20×(M0)+1)×4ms

The figure below shows the timing of inserting a silence of 20 ms between the repetitions of a phrase of (F7–F0)

= 01h.

CSB

SCK

NCR

(internal)

BUSYB

(internal)

SPM

1/2VDD

SPP

1/2VDD

tcm

CBUSYB

PLAY command

2nd byte

MUON command

1st byte

MUON command

2nd byte

PLAY command

1st byte

PLAY command

2nd byte

Status

Playing

Address is being controlled

Awaiting command

Silence is being inserted

Playing

Waiting for silence insertion

to be finished

Waiting for playback to be finished

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