Data Sheet

606
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
z Bit 24 – MONO: Mono Mode. Refer to Table 28-13 for details.
Table 28-13. Mono Mode
z Bits 23:16 – SLOTDISx [x=7..0]: Slot x Disabled for this Serializer
This field allows disabling some slots in each transmit frame:
0: Slot x is used for data transfer.
1: Slot x is not used for data transfer and will be output as specified in the TXDEFAULT field.
z Bit 15 – BITREV: Data Formatting Bit Reverse
This bit allows changing the order of data bits in the word in the Formatting Unit. Refer to Table 28-14 for details.
Table 28-14. Data Formatting Bit Reverse
z Bits 14:13 – EXTEND[1:0]: Data Formatting Bit Extension
This field defines the bit value used to extend data samples in the Formatting Unit. Refer to Table 28-15 for details.
Table 28-15. Data Formatting Bit Extension
z Bit 12 – WORDADJ: Data Word Formatting Adjust
This field defines left or right adjustment of data samples in the word in the Formatting Unit. Refer to Table 28-16
for details.
Table 28-16. Data Word Formatting Adjust
z Bit 11 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write this bit to zero
when this register is written. This bit will always return zero when read.
MONO Name Description
0x0 STEREO Normal mode
0x1 MONO Left channel data is duplicated to right channel
BITREV Name Description
0x0 MSBIT
Transfer Data Most Significant Bit (MSB) first (default for I2S
protocol)
0x1 LSBIT Transfer Data Least Significant Bit (LSB) first
EXTEND[1:0] Name Description
0x0 ZERO Extend with zeros
0x1 ONE Extend with ones
0x2 MSBIT Extend with Most Significant Bit
0x3 LSBIT Extend with Least Significant Bit
WORDADJ Name Description
0x0 RIGHT Data is right adjusted in word
0x1 LEFT Data is left adjusted in word