Datasheet

30
42023ES–SAM–07/2013
ATSAM4L8/L4/L2
3.3 Signals Description
The following table gives details on signal names classified by peripheral.
Table 3-8. Signal Descriptions List (Sheet 1 of 4)
Signal Name Function Type
Active
Level Comments
Audio Bitstream DAC - ABDACB
CLK D/A clock output Output
DAC1 - DAC0 D/A bitstream outputs Output
DACN1 - DACN0 D/A inverted bitstream outputs Output
Analog Comparator Interface - ACIFC
ACAN1 - ACAN0 Analog Comparator A negative references Analog
ACAP1 - ACAP0 Analog Comparator A positive references Analog
ACBN1 - ACBN0 Analog Comparator B negative references Analog
ACBP1 - ACBP0 Analog Comparator B positive references Analog
ADC controller interface - ADCIFE
AD14 - AD0 Analog inputs Analog
ADVREFP Positive voltage reference Analog
TRIGGER External trigger Input
Backup System Control Interface - BSCIF
XIN32 32 kHz Crystal Oscillator Input
Analog/
Digital
XOUT32 32 kHz Crystal Oscillator Output Analog
Capacitive Touch Module B - CATB
DIS Capacitive discharge line Output
SENSE31 - SENSE0 Capacitive sense lines I/O
DAC Controller - DACC
DAC external trigger DAC external trigger Input
DAC voltage output DAC voltage output Analog
Enhanced Debug Port For ARM Products - EDP
TCK/SWCLK JTAG / SW Debug Clock Input
TDI JTAG Debug Data In Input
TDO/TRACESWO JTAG Debug Data Out / SW Trace Out Output
TMS/SWDIO JTAG Debug Mode Select / SW Data I/O
External Interrupt Controller - EIC
EXTINT8 - EXTINT0 External interrupts Input
Glue Logic Controller - GLOC
IN7 - IN0 Lookup Tables Inputs Input
OUT1 - OUT0 Lookup Tables Outputs Output