CS42418_05 Datasheet, PDF (57/73 Pages) Cirrus Logic – 110 dB, 192 kHz 8-Ch Codec with PLL

CS42418
6.19 Interrupt Mask (address 21h)
7
UNLOCKM
6
Reserved
5
Reserved
4
Reserved
3
Reserved
2
Reserved
1
OverFlowM
0
Reserved
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 56. 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.
6.20 Interrupt Mode MSB (address 22h)
Interrupt Mode LSB (address 23h)
7
6
5
4
3
2
1
0
UNLOCK1 Reserved
Reserved
Reserved
Reserved
Reserved
OF1
Reserved
UNLOCK0 Reserved
Reserved
Reserved
Reserved
Reserved
OF0
Reserved
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 55.
00 - Rising edge active
01 - Falling edge active
10 - Level active
11 - Reserved
6.21 Mutec Pin Control (address 28h)
7
Reserved
6
Reserved
5
MCPolarity
4
M_AOUTA1
3
M_AOUTB1
2
M_AOUTA2
M_AOUTB2
1
M_AOUTA3
M_AOUTB3
0
M_AOUTA4
M_AOUTB4
6.21.1 MUTEC POLARITY SELECT (MCPOLARITY)
Default = 0
0 - Active low
1 - Active high
Function:
Determines the polarity of the MUTEC pin.
DS603F1
57