Cirrus-logic CS4341 Manual do Utilizador descarregar pdf (Página 28)

CS4341

28 DS298F5

6.3.3 ATAPI CHANNEL MIXING AND MUTING (ATAPI) BIT 0-4

Default = 01001 - AOUTA = Left Channel, AOUTB = Right Channel (Stereo)

Function:

The CS4341 implements the channel mixing functions of the ATAPI CD-ROM specification. Refer to

Table 6 and Figure 25 for additional information.

ATAPI4 ATAPI3 ATAPI2 ATAPI1 ATAPI0 AOUTA AOUTB

00000 MUTE MUTE

00001 MUTE bR

00010 MUTE bL

00011 MUTE b[(L+R)/2]

00100 aR MUTE

00101 aR bR

00110 aR bL

00111 aR b[(L+R)/2]

01000 aL MUTE

01001 aL bR

01010 aL bL

01011 aL b[(L+R)/2]

0 1 1 0 0 a[(L+R)/2] MUTE

0 1 1 0 1 a[(L+R)/2] bR

0 1 1 1 0 a[(L+R)/2] bL

0 1 1 1 1 a[(L+R)/2] b[(L+R)/2]

10000 MUTE MUTE

10001 MUTE bR

10010 MUTE bL

10011 MUTE bL/2

10100 aR MUTE

10101 aR bR

10110 aR bL

10111 aR [(aR+bL)/2]

11000 aL MUTE

11001 aL bR

11010 aL bL

1 1 0 1 1 aL [(aL+bR)/2]

11100 aL/2 MUTE

1 1 1 0 1 [(aL+bR)/2] bR

1 1 1 1 0 [(bL+aR)/2] bL

1 1 1 1 1 [(aL+bR)/2] [(aL+bR)/2]

Table 6. ATAPI Decode

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 34

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