Datasheet

STA559BW Register description
Doc ID 18190 Rev 1 45/67
6.4 Channel configuration registers (addr 0x0E - 0x10)
Tone control bypass
Tone control (bass/treble) can be bypassed on a per channel basis for channels 1 and 2.
EQ bypass
EQ control can be bypassed on a per channel basis for channels 1 and 2. If EQ control is
bypassed on a given channel the prescale and all filters (high-pass, biquads, de-emphasis,
bass, treble in any combination) are bypassed for that channel.
Volume bypass
Each channel contains an individual channel volume bypass. If a particular channel has
volume bypassed via the CxVBP = 1 register then only the channel volume setting for that
particular channel affects the volume setting, the master volume setting has no effect on that
channel.
D7 D6 D5 D4 D3 D2 D1 D0
C1OM1 C1OM0 C1LS1 C1LS0 C1BO C1VPB C1EQBP C1TCB
00000000
D7 D6 D5 D4 D3 D2 D1 D0
C2OM1 C2OM0 C2LS1 C2LS0 C2BO C2VPB C2EQBP C2TCB
01000000
D7 D6 D5 D4 D3 D2 D1 D0
C3OM1 C3OM0 C3LS1 C3LS0 C3BO C3VPB Reserved Reserved
10000000
Table 58. Tone control bypass
CxTCB Mode
0 Perform tone control on channel x - normal operation
1 Bypass tone control on channel x
Table 59. EQ bypass
CxEQBP Mode
0 Perform EQ on channel x - normal operation
1 Bypass EQ on channel x
Table 60. Volume bypass register
CxVBP Mode
0 Normal volume operations
1 Volume is by-passed