CS42428 datasheet(47/67 Pages) CIRRUS

47 / 67 page

CS42428

5.19

Interrupt Mask (address 21h)

Default = 00000000

Function:

The bits of this register serve as a mask for the interrupt sources found in the register “Interrupt Status

(address 20h) (Read Only)” on page 46. If a mask bit is set to 1, the error is unmasked, meaning that

its occurrence will affect the INT pin and the status register. If a mask bit is set to 0, the error is

masked, meaning that its occurrence will not affect the INT pin or the status register. The bit positions

align with the corresponding bits in the Interrupt Status register.

5.20

Interrupt Mode MSB (address 22h)

Interrupt Mode LSB (address 23h)

Default = 00000000

Function:

The two Interrupt Mode registers form a 2-bit code for each Interrupt Status register function. There

are three ways to set the INT pin active in accordance with the interrupt condition. In the Rising edge

active mode, the INT pin becomes active on the arrival of the interrupt condition. In the Falling edge

active mode, the INT pin becomes active on the removal of the interrupt condition. In Level active

mode, the INT interrupt pin becomes active during the interrupt condition. Be aware that the active

level(Active High or Low) only depends on the INT(1:0) bits located in the register “Interrupt Control

(address 1Eh)” on page 45.

00 - Rising edge active

01 - Falling edge active

10 - Level active

11 - Reserved

5.21

MuteC Pin Control (address 28h)

5.21.1 MUTEC POLARITY SELECT (MCPOLARITY)

Default = 0

0 - Active low

1 - Active high

Function:

Determines the polarity of the MUTEC pin.

76543

210

UNLOCKM

Reserved

OverFlowM

Reserved

76543

210

UNLOCK1

Reserved

OF1

Reserved

UNLOCK0

Reserved

OF0

Reserved

76543

210

Reserved

MCPolarity

M_AOUTA1

M_AOUTB1

M_AOUTA2

M_AOUTB2

M_AOUTA3

M_AOUTB3

M_AOUTA4

M_AOUTB4

CS42428 Datasheet(PDF) 47 Page - Cirrus Logic

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