MS87V1021 datasheet(48/63 Pages) OKI

48 / 63 page

PEDS87V1021-01

1Semiconductor

MS87V1021

48/63

[Defining the Method, Samp and address information]

To let the LSI to recognize a copied sound data as a new phrase, you need to define address control information

that includes the Method, Samp, Start Address and End Address. Such information should be entered to an address

control data area for each phrase. For more details on address control data area, see "Controlling addresses in

Normal Play Mode".

To define address control information, follow the steps below:

1. Defining the Method and Samp

Use the Bytew command to write the data.

(Ex.) Where;

Phrase 1, Method = 01h, Samp = 08h and Start Address for Area1 = 00h

(1) Specifying the Start Address

Enter the DTRW command; 2nd Byte: 00h, 3rd Byte: 00h, 4th Byte: 08h

(2) Writing the data

Enter the Bytew command; 2nd Byte: 18h

• Writing the Method and Samp data

(3) Ending Write Mode

Enter the End command

2. Defining the Start Address and End Address

Use the Adrwr command to define the data for each phrase.

(Ex.) Where;

Phrase 1, Stadr = 000800h and Enadr = 010000h

Enter the Adrwr command; 2nd Byte: 01h, 3rd Byte: 00h, 4th Byte: 80h

5th Byte: 00h, 6th Byte: 01h, 7th Byte: 00h, 8th Byte: 00h

[Copying separated data]

To copy two data that were separately recorded in two portions of a Retroactive Play Mode area as shown below,

issue the Copy command twice, first for the former data and second for the latter data.

End

Recorded

data

Recorded

data

Retroactive Play Mode area

Normal Mode area

The latter

recorded data

The former

recorded data

The former

recorded data

Start

The latter

recorded data

Start_new

End_new

Copy command

New pharase

Retroactive Play Mode area

Normal Mode area

Address

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