CS42516 datasheet(70/90 Pages) CIRRUS

70 / 90 page

DS583F1

CS42516

or as a dedicated ADC overflow pin indicating an over-range condition anywhere in the ADC signal

path for either the left or right channel. The Functionx bits determine the operation of the pin. When

configured as a GPO with the output driven low, the driver is a CMOS driver. When configured to iden-

tify an ADC Overflow condition, the driver is an open drain driver requiring a pull-up resistor.

GPO, Drive High Mode - The pin is configured as a general purpose output driven high.

6.28.2 POLARITY SELECT (POLARITY)

Default = 0

Function:

RXP Input - If the pin is configured for an RXP input, the polarity bit is ignored. It is recommended that

in this mode this bit be set to 0.

Mute Mode - If the pin is configured as a dedicated mute output pin, the polarity bit determines the

polarity of the mapped pin according to the following

0 - Active low

1 - Active high

GPO, Drive Low / ADC Overflow Mode - If the pin is configured as a GPO, Drive Low / ADC Overflow

Mode pin, the polarity bit is ignored. It is recommended that in this mode this bit be set to 0.

GPO, Drive High - If the pin is configured as a general-purpose output driven high, the polarity bit is

ignored. It is recommended that in this mode this bit be set to 0.

6.28.3 FUNCTIONAL CONTROL (FUNCTIONX)

Default = 00000

Function:

RXP Input - If the pin is configured for an RXP input, the functional bits are ignored. It is recommended

that in this mode all the functional bits be set to 0.

Mute Mode - If the pin is configured as a dedicated mute pin, the functional bits determine which chan-

nel mutes will be mapped to this pin according to the following table.

0 - Channel mute is not mapped to the RXPx/GPOx pin

1 - Channel mute is mapped to the RXPx/GPOx pin:

GPO, Drive Low / ADC Overflow Mode - If the pin is configured as a GPO, Drive Low / ADC Overflow

Mode pin, the Function1 and Function0 bits determine how the output will behave according to the

RXPx/GPOx

Reg Address

Function4

Function3

Function2

Function1

Function0

RXP7/GPO7

pin 42

29h

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

Reserved

RXP6/GPO6

pin 43

2Ah

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

Reserved

RXP5/GPO5

pin 44

2Bh

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

Reserved

RXP4/GPO4

pin 45

2Ch

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

Reserved

RXP3/GPO3

pin 46

2Dh

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

Reserved

RXP2/GPO2

pin 47

2Eh

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

Reserved

RXP1/GPO1

pin 48

2Fh

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

Reserved

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