Datasheet

SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
1198
Problem Fix/Workaround
Transmit STTDLY must be different from 0.
49.2.7.2 SSC: Unexpected delay on TD output
When SSC is configured with the following conditions:
 TCMR.STTDLY more than 0
 RCMR.START = Start on falling edge/Start on Rising edge/Start on any edge
 RFMR.FSOS = None (input)
 TCMR.START = Receive Start
Unexpected delay of 2 or 3 system clock cycles is added to TD output.
Problem Fix/Workaround
None
49.2.8 Touchscreen (TSADCC)
49.2.8.1 TSADCC: Pen detect accuracy is not good
Depending on LCD panels, the pen detect is noisy, leading to an unpredictable behavior.
Problem Fix/Workaround
An additional resistor solves the problem. Its value (between 100
kΩ and 250 kΩ) is to be tuned for the LCD panel.