CS4216 datasheet(34/58 Pages) CIRRUS

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MF4:DI4 - Parallel Digital Bit Input #4 in SM1/SM2, PIN 36(L), 30(Q).

In serial modes 1 and 2 this pin value is reflected in the DI4 bit in the sub-frame.

MF4:MA - Master Sub-Mode in SM3, PIN 36(L), 30(Q).

In serial mode 3 this pin selects either master or slave mode. When MF4:MA = 1, the codec is

in master mode and outputs SSYNC and SCLK. When MF4:MA = 0, the codec is in slave

mode and receives SSYNC and SCLK from an external source that must be frequency locked to

CLKIN.

MF4:CCS - Control Data Chip Select in SM4, PIN 36(L), 30(Q).

In serial mode 4 this pin is the control port chip select signal. When low, the control port data is

clocked in CDIN and status data is output on CDOUT. When CCS goes high, control data is

latched internally. This data remains active until new data is clocked in. The control port may

also be asynchronous to the audio data port.

MF5:DO2 - Parallel Digital Bit Output #2 in SM1/SM2/SM3, PIN 38(L), 32(Q).

In serial modes 1, 2, and 3 this pin reflects the value of the DO2 bit in the sub-frame.

MF5:INT - Interrupt in SM4, PIN 38(L), 32(Q).

In serial mode 4 this pin is an active low interrupt signal that is maskable using the MSK bit in

the control port serial data stream. INT is an open-collector output and requires and external

pull-up resistor. Assuming the mask bit is not set, and interrupt is triggered by a change in ADV

or DI1, or a rising edge on LCL or RCL, or a exiting an SCLK out of range condition

(Error = 3)

MF6:DI2 - Parallel Digital Bit Input #2 in SM1/SM2/SM3, PIN 34(L), 28(Q).

In serial modes 1, 2, and 3 this pin value is reflected in the DI2 bit of the sub-frame.

MF6:F1 - Format Bit 1 in SM4, PIN 34(L), 28(Q).

In serial mode 4 this pin is a format bit and is used as one of three sample frequency select pins

when in master mode. In slave mode, MF6:F1 helps determine the number of sub-frames within

a frame.

MF7:SFS1 - Sub-Frame Select 1 in SM1/SM2/SM3/SM4-SL, PIN 31(L), 25(Q).

In serial modes 1, 2, and 3, MF7:SFS1 helps select the sub-frame that this particular CS4216 is

allocated. In slave sub-mode of serial mode 4, this pin is one of two pins used as a sub-frame

select when MF6:F1 = 1 (128-bit frames). When MF6:F1 = 0, this pin is used to select the

frame sizes of 32 or 64 bits.

MF7:F2 - Format Bit 2 in SM4-MA, PIN 31(L), 25(Q).

In master sub-mode of serial mode 4, this pin is used as one of three sample frequency select

pins.

MF8:SFS2 - Sub-Frame Select 2 in SM1/SM2/SM3/SM4-SL, PIN 30(L), 24(Q).

In serial modes 1, 2, 3, and slave sub-mode of 4, MF8:SFS2 helps select the sub-frame that this

particular CS4216 is allocated.

MF8:F3 - Format Bit 3 in SM4-MA, PIN 30(L), 24(Q).

In master sub-mode of serial mode 4, this pin is a format bit and is one of three sample

frequency select pins.

CS4216

DS83F2

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