Datasheet

664
11011B–ATARM–21-Feb-12
SAM3N
664
11011B–ATARM–21-Feb-12
SAM3N
33.7.4 ADC Channel Sequence 2 Register
Name: ADC_SEQR2
Address: 0x4003800C
Access: Read-write
This register can only be written if the WPEN bit is cleared in “ADC Write Protect Mode Register” on page 677.
• USCHx: User Sequence Number x
The sequence number x (USCHx) can be programmed by the Channel number CHy where y is the value written in this
field. The allowed range is 0 up to 15. So it is only possible to use the sequencer from CH0 to CH15.
This register activates only if ADC_MR(USEQ) field is set to ‘1’.
Any USCHx field is taken into account only if ADC_CHSR(CHx) register field reads logical ‘1’ else any value written in
USCHx does not add the corresponding channel in the conversion sequence.
Configuring the same value in different fields leads to multiple samples of the same channel during the conversion
sequence. This can be done consecutively, or not, according to user needs.
31 30 29 28 27 26 25 24
USCH16 USCH15
23 22 21 20 19 18 17 16
USCH14 USCH13
15 14 13 12 11 10 9 8
USCH12 USCH11
76543210
USCH10 USCH9