STV82X7 datasheet(45/149 Pages) STMICROELECTRONICS

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STV82x7

STV82x7 Reset

All STV82x7 features are controlled via the I²C bus.

The STV82x7 can be "reset" in 2 ways:

1. By Software via the I²C bus: This clears all synchronous logic, except for the I²C bus registers.

2. By Hardware via the RESET pin: In addition to clearing all synchronous logic, the RESET input

(active on the low level) resets all the I²C bus registers to the default values listed below.

Table 7: RESET Default Values

Function

Default mode

Demodulation

Auto-standard

Scanned Standards

M/N, B/G, I, L/L’

FM Deviation

± 125 kHz (Max.)

Audio Outputs

Automatic Mute Mode

Loudspeaker Source

Demodulated Sound

Loudspeaker Volume

-40 dB, differential mode, muted

Loudspeaker L/R Balance

L/R = 100%

Subwoofer

-40 dB / OFF

Headphone Source

Demodulated Sound

Headphone Automatic Detection

Headphone Volume

-40 dB, differential mode, muted

Headphone L/R Balance

L/R = 100%

SCART-1 out

Demodulated Sound

SCART-2 out

SCART1 Source

SCART Volume

-5.5 dB, independent mode, muted

I²S out

OFF

Audio Processing

Loudspeaker/Headphone SVC

OFF, 0 dB Reference Value

Loudspeaker Surround

OFF

Loudspeaker 5-Band Equalizer

OFF, 0 dB (Flat Band)

Loudspeaker Loudness

OFF

Headphone Bass/Treble

OFF, 0 dB (Flat Band)

Loudspeaker/Headphone Beeper

-40 dB / OFF

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