BU9408KS2_12 Datasheet, PDF (11/57 Pages) Rohm – 32bit Audio DSP with Built-in 4ch DAC and ASRC

BU9408KS2
Technical Note
2-4. Output data selection P-S Conversion 2 for DATASO terminal (SEL2, SEL5)
Default = 0
Select Address
&h04 [ 5:4 ]
Value
0
1
2
3
Operation Description
Sub data output after DSP operation
Main data output after DSP operation
Data output before DSP operation
Data output from DF1
2-5. P-S Conversion 2 output data option (DATASO，ERR1_LRC，ERR2_BCK)
Usually, from a DATASO terminal, the result of the Sub output process of DSP is outputted to the timing (LRCKO, BCKO)
which synchronized with DATAMO.
Moreover, if this output option is set up, it will enable DATAMO to output the data of DF1 as independent data from a
DATASO terminal as a 3 line serial output with ERR1_LRC (LRCK) and ERR2_BCK (BCK).
This function is used when doing a line out output using external DAC.
Default = 0
Select Address
&h0E [ 7 ]
Value
0
Operation Description
Synchronous output with DATAMO (LRCKO, BCKO)
1
Asynchronous output with DATAMO (ERR1_LRC, ERR2_BCK)
If this function is used, the monitor of the error flag from ERROR1 and ERROR2 terminal will not be made.
2-6. Output data selecting of SPDIFO terminal (SEL1, SEL7)
Default = 0
Select Address
&h05 [ 3:0 ]
Value
0
1
2
3
4
5
6
Operation Description
Data output before DSP operation
Main data output after DSP operation
Sub data output after DSP operation
Output data from I2S_IN1 (Only data of S/PDIF form)
Output data from I2S_IN2 (Only data of S/PDIF form)
Output data from I2S_IN3 (Only data of S/PDIF form)
Output data from I2S_IN4 (Only data of S/PDIF form)
2-7. Output data selecting DF1＋ΔΣDAC (SEL3)
Default = 0
Select Address
&h06 [ 2:0 ]
Value
0
1
2
3
4
Operation Description
Output data from S-P conversion 1 (Refer to &h03 [5:4])
Output data from S-P conversion 2 (Refer to &h03 [1:0])
Data output before DSP operation
Main data output after DSP operation
Sub data output after DSP operation
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
11/53
2012.03 - Rev.A