9/17

TDA7575

SOFTWARE SPECIFICATIONS

The bit 0 of the "ADDRESS BYTE" defines if the next bytes are write instruction (from

µP to TDA7575) or read

instruction (from TDA7575 to

µP).

ADDRESS SELECTION

If R/W = 0, the

µP sends 2 "Instruction Bytes": IB1 and IB2.

IB1

IB2

A6

1

A5

1

A4

0

A3

1

A2

0

A1

B

A0

A

R/W

X

D7

X

D6

Diagnostic enable (D6 = 1)

Diagnostic defeat (D6 = 0)

D5

Offset Detection enable (D5 = 1)

Offset Detection defeat (D5 = 0)

D4

Gain = 26dB (D4 = 0)

Gain = 12dB (D4 = 1)

D3

X

D2

Mute (D2 = 0)

Unmute (D2 = 1)

D1

X

D0

CD 2% (D0 = 0)

CD 10% (D0 = 1)

D7

X

D6

used for testing

D5

used for testing

D4

Stand-by on - Amplifier not working - (D4 = 0)

Stand-by off - Amplifier working - (D4 = 1)

D3

Power Amplifier Mode Diagnostic (D3 = 0);

Line Driver Mode Diagnostic (D3 = 1)

D2

X

D1

Power amplifier working in standard mode (D1 = 0)

Power amplifier working in high efficiency mode (D1 = 1)

D0

X