50.6.3 ASRC Ratio Register of Stereo Channel x
This register can only be written if the WPEN bit is cleared in ASRC_WPMR.
| Name: | ASRC_RATIOx |
| Offset: | 0x08 + x*0x04 [x=0..3] |
| Reset: | 0x04000400 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| OUTRATIO[15:8] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| OUTRATIO[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| INRATIO[15:8] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| INRATIO[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bits 31:16 – OUTRATIO[15:0] Output Internal Sampling Rate Ratio
The output internal sampling rate is defined by a division ratio applied on the GCLK:
Fs(out) = FGCLK/OUTRATIO
The minimum ratio value is 1024 or 2048 (see Limitations).
Bits 15:0 – INRATIO[15:0] Input Internal Sampling Rate Ratio
The input internal sampling rate is defined by a division ratio applied on the GCLK:
Fs(in) = FGCLK/INRATIO
The minimum ratio value is 1024 or 2048 (see Limitations).