CS42428 Datasheet, PDF (49/67 Pages) Cirrus Logic – 114 dB, 192kHz 8-Ch CODEC WITH PLL

CS42428
5.22.3 FUNCTIONAL CONTROL (FUNCTIONX)
Default = 00000
Function:
Mute Mode - If the pin is configured as a dedicated mute pin, then the functional bits determine which
channel mutes will be mapped to this pin according to the following table.
0 - Channel mute is not mapped to the GPOx pin
1 - Channel mute is mapped to the GPOx pin:
GPOx
GPO7
pin 42
GPO6
pin 43
GPO5
pin 44
GPO4
pin 45
GPO3
pin 46
GPO2
pin 47
GPO1
pin 48
Reg Address Function4
29h
M_AOUTA1
2Ah
M_AOUTA1
M_AOUTB1
2Bh
M_AOUTA1
M_AOUTB1
2Ch
M_AOUTA1
M_AOUTB1
2Dh
M_AOUTA1
M_AOUTB1
2Eh
M_AOUTA1
M_AOUTB1
2Fh
M_AOUTA1
M_AOUTB1
Function3
M_AOUTB1
M_AOUTA2
M_AOUTA2
M_AOUTA2
M_AOUTB2
M_AOUTA2
M_AOUTB2
M_AOUTA2
M_AOUTB2
M_AOUTA2
M_AOUTB2
Function2
M_AOUTA2
M_AOUTB2
M_AOUTB2
M_AOUTB2
M_AOUTA3
M_AOUTA3
M_AOUTA3
M_AOUTB3
M_AOUTA3
M_AOUTB3
Function1
M_AOUTA3
M_AOUTB3
M_AOUTA3
M_AOUTB3
M_AOUTA3
M_AOUTB3
M_AOUTB3
M_AOUTB3
M_AOUTA4
M_AOUTA4
Function0
M_AOUTA4
M_AOUTB4
M_AOUTA4
M_AOUTB4
M_AOUTA4
M_AOUTB4
M_AOUTA4
M_AOUTB4
M_AOUTA4
M_AOUTB4
M_AOUTB4
M_AOUTB4
GPO/Overflow Mode - If the pin is configured as a GPO/Overflow Mode pin, then the Function1 and
Function0 bits determine how the output will behave according to the following table. It is recommend-
ed that in this mode the remaining functional bits be set to 0.
Function1
0
1
Function0
0
1
GPOx
Drive Low
OVFL R or L
Driver Type
CMOS
Open Drain
GPO, Drive High Mode - If the pin is configured as a general purpose output, then the functional bits
are ignored and the pin is driven high. It is recommended that in this mode all the functional bits be
set to 0.
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