ML22Q533 datasheet(44/178 Pages) ROHM

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FEDL22Q53X-02

ML22Q53X

 Detects disconnection/short circuit of SAI_IN.

Set the "Detects disconnection/short circuit of SAI_IN" with the SAIINEN bit of the SAFE command.

When SAI_IN does not change for more than 1.8 seconds (min.), the error bit (SAIINERR) is set to "1".

Error bit (SAIINERR) can be read with RDERR command. Also,error bit (SAIINERR) can be cleared by ERRCL command.

When OUTEN is set to "1" and INEN is set to "0" by the SAICON command, the SAI_IN input is disabled. Therefore, set

SAIINEN to "0".

*1 Set SAIINEN = "1"

*2 Set SAIINEN = "0"

*3 Misoperation detection and failure detection outputs are selected by OUTSTAT command.

*4 Set INEN = "1"

 Mixing number error detection

When using the serial audio interface (SAI), the sampling frequency limits the maximum number of mixings and playable

channels. If the setting exceeds the limit, it will be detected as a mixing error.

Set the mixing error detection with the MIXEN bit of the SAFE command.

①

When FS3 to FS0 =12/24/48 kHz or 11.025/22.05/44.1kHz is set by the SAICON command, and either LEN or REN is

set to "1" by the SAICH command, specifying channel 3 and inputting the PLAY, PLAY2, START, or MUON command sets

the error bit (MIXERR) to "1". Also, the input command is ignored.

②

If FS3 to FS0=12/24/48kHz or 11.025/22.05/44.1kHz is set by the SAICON command, and if the Rch or Lch side

selects channel 3 (CH3) by the SAICH command and either LEN or REN is set to "1", the error bit (MIXERR) is set to "1".

Also, the entered SAICH command is ignored.

Error bit (MIXERR) can be read with RDERR command. Also, error bit (MIXERR) can be cleared by ERRCL command.

For mixing restriction when using serial audio interface (SAI), refer to “Restrictions when using Serial Audio Interface

(SAI)” in the chapter on mixing function.

Command

SAIINERR

Detects disconnection/short circuit of SAI_IN is operating

STATUSn pin

(n：1 or 2)

PUP

SAFE

ERRCL

SAFE

SAICON

SAI_IN pin

Input normal

Input stop

Input normal

1.8 sec(min.)

RDERR

SAIINEN

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