Datasheet

SAM9X35 [DATASHEET]

11055E–ATARM–10-Mar-2014

42.8.3 ADC Channel Sequence 1 Register

Name: ADC_SEQR1

Address: 0xF804C008

Access: Read-write

This register can only be written if the WPEN bit is cleared in “ADC Write Protect Mode Register” on page 972.

• 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 11. So it is only possible to use the sequencer from CH0 to CH11.

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

USCH8 USCH7

23 22 21 20 19 18 17 16

USCH6 USCH5

15 14 13 12 11 10 9 8

USCH4 USCH3

76543210

USCH2 USCH1