Datasheet
817
32117D–AVR-01/12
AT32UC3C
• FORMAT: I2S or TDM Format
• DATALENGTH: Data Word Length
•MODE: Mode
Table 30-6. Frame Format
FORMAT Description
0I2S I
2
S format, stereo with IWS low for left channel, and MSB of sample starting one ISCK period after IWS edge
1 LJ Left-justified format, stereo with IWS high for left channel, and MSB of sample starting on IWS edge
2TDM
TDM format, with (NBCHAN+1) channels, IWS high at beginning of first channel, and MSB of sample starting one ISCK
period after IWS edge
3TDMLJ
TDM format, left-justified, with (NBCHAN+1) channels, IWS high at beginning of first channel, and MSB of sample
starting on IWS edge
Table 30-7. Data Word Length
DATALENGTH Word Length Comments
0 32 bits
1 24 bits
2 20 bits
3 18 bits
4 16 bits
5 16 bits compact stereo Left sample in bits 15 through 0 and right sample in bits 31 through 16 of the same word
6 8 bits
7 8 bits compact stereo Left sample in bits 7 through 0 and right sample in bits 15 through 8 of the same word
Table 30-8. Mode
MODE Comments
0 SLAVE ISCK and IWS pin inputs used as Bit Clock and Word Select/Frame Sync.
1 MASTER
Bit Clock and Word Select/Frame Sync generated by IISC from GCLK_IISC and output to ISCK and IWS pins.
GCLK_IISC is output as Master Clock on IMCK if MR.IMCKMODE is one.