Datasheet

916
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
40.11.4 TSADCC Touch Screen Register
Name: TSADCC_TSR
Address: 0xFFFB000C
Access: Read/Write
• TSFREQ: Touch Screen Frequency in Interleaved Mode
Effective only if the Touch Screen Interleaved Mode is selected. Defines the Touch Screen Frequency compared to the
Trigger Frequency.
If TSFREQ is 0 or 1, the Touch Screen Frequency is a sixth of the Trigger Frequency.
Otherwise:
Touch Screen Frequency = Trigger Frequency / (2
TSFREQ+1
)
• TSSHTIM: Sample & Hold Time for Touch Screen Channels
Programming 0 for TSSHTIM gives a Touch Screen Sample & Hold Time equal to 1/ADCCLK.
Touch Screen Sample & Hold Time = TSSHTIM/ADCCLK
31 30 29 28 27 26 25 24
–––– TSSHTIM
23 22 21 20 19 18 17 16
––––––––
15 14 13 12 11 10 9 8
––––––––
76543210
–––– TSFREQ