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SYSTEM CONTROL REGISTER 2 (0x05)

SOFT MUTE REGISTER (0x06)

VOLUME REGISTERS (0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D)

TAS5086

SLES131 – FEBRUARY 2005

Bit D6 is a control bit and bit D5 is a configuration bit.

When bit D6 is set low, the system starts playing, otherwise the outputs are shut down.

Bit D5 defines the configuration of the system, i.e. it determines what configuration the system will be running in

when bit D6 is set low. When this bit is asserted the system is configured to surround meaning all channels are

switching. Otherwise only a subset of the PWM’s will be running corresponding to a 2.0 or 2.1 configuration as

determined surround register (0x19).

Bit D5 should only be changed when bit D6 is set, meaning the it is only possible to switch configuration from

surround to 2.1/2.0 by shutting down the system and then restarting it again in the new configuration.

Table 6. System Control Register 2

D7

D6

D5

D4

D3

D2

D1

D0

FUNCTION

–

1

X

–

–

–

–

–

All Channels are shut down (hard mute)

–

1

1

–

–

–

–

–

All Channels are shut down (hard mute) VALID1 = 0 and VALID2 = 0

–

0

1

–

–

–

–

–

When D6 is deasserted all channels are started. VALID1 = 1 and VALID2 = 1

–

0

0

–

–

–

–

–

When D6 is deasserted all channels not belonging to Shut Down Group 1 are

started VALID1 = 0 and VALID2 = 1

Table 7. Soft Mute Register

D7

D6

D5

D4

D3

D2

D1

D0

FUNCTION

–

–

–

–

–

–

–

1

Soft Mute Channel 1

–

–

–

–

–

–

1

–

Soft Mute Channel 2

–

–

–

–

–

1

–

–

Soft Mute Channel 3

–

–

–

–

1

–

–

–

Soft Mute Channel 4

–

–

–

1

–

–

–

–

Soft Mute Channel 5

–

–

1

–

–

–

–

–

Soft Mute Channel 6

0

0

0

0

0

0

0

0

Unmute All Channels

Master Volume

– 0x07 (default is mute)

Channel 1 Volume

– 0x08 (default is 0dB)

Channel 2 Volume

– 0x09 (default is 0dB)

Channel 3 Volume

– 0x0A (default is 0dB)

Channel 4 Volume

– 0x0B (default is 0dB)

Channel 5 Volume

– 0x0C (default is 0dB)

Channel 6 Volume

– 0x0D (default is 0dB)

Table 8. Volume Register

D7

D6

D5

D4

D3

D2

D1

D0

FUNCTION

0

0

0

0

0

0

0

0

+24 dB

0

0

1

1

0

0

0

0

0 dB (Default for Individual Channel Volume)

1

1

1

1

1

1

1

0

–103 dB

1

1

1

1

1

1

1

1

MUTE (Default for Master Volume)

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