UPD9930 datasheet(39/78 Pages) NEC

39 / 78 page

µPD9930

Table 4-4 Function Specification by Digital Signal Processing Control Register

DSPCR

HEXNote

D7 D6

1100000

Note 2

Note 3

60H 06H

At reset

0001

Note 2

Voice receive signal output

61H 86H

0010

Inhibiting command

—

0011

Inhibiting command

—

0100

Note 2

Tone output

64H 26H

0101

Note 2

Voice receive signal + tone output 65H A6H

0110

Tone output

66H 66H

0111

Tone output

Voice receive signal + tone output 67H E6H

1000

Inhibiting command

—

1001

Inhibiting command

—

1010

Voice send signal output

Note 3

6AH 56H

1011

Voice send signal output

Voice receive signal output

6BH D6H

1100

Inhibiting command

—

1101

Inhibiting command

—

1110

Voice send signal output

Tone output

6EH 76H

1111

Voice send signal output

Voice receive signal + tone output 6FH F6H

Notes 1. M: HEX value with MSB first

L: HEX value with LSB first

2. Stops voice send data processing and serial output.

3. Stops voice receive data serial input and tone output.

Serial output control

Control of output to D/A

Remarks

UPD9930 데이터시트(PDF) 39 Page - NEC

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