Registers
STA321MP
7.2.30 Biquad internal channel loop-through (0x28)
D7
D6
D5
D4
D3
D2
D1
D0
C8BLP
0
C7BLP
0
C6BLP
0
C5BLP
0
C4BLP
0
C3BLP
0
C2BLP
0
C1BLP
0
Each internal processing channel can receive two possible inputs at the input to the biquad
block. The input can come either from the output of that channel’s MIX#1 engine or from the
output of the bass/treble (biquad #10) of the previous channel. In this scenario, channel 1
receives channel 8. This enables the use of more than 10 biquads on any given channel at
the loss of the number of separate internal processing channels.
Bit RW RST
Name
7:0 RW 0
CnBLP
Description
For n = 1 to 8:
0: input from channel n MIX#1 engine output - normal
operation
1: input from channel (n - 1) biquad #10 output - loop
operation
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Doc ID 022647 Rev 1