Atmel SAM4L-EK Atmel ATSAM4L-EK ATSAM4L-EK Data Sheet
Product codes
ATSAM4L-EK
1122
42023E–SAM–07/2013
ATSAM4L8/L4/L2
42.4
Maximum Clock Frequencies
Table 42-4.
Maximum Clock Frequencies in Power Scaling Mode 0/2 and RUN Mode
Symbol
Parameter
Description
Max
Units
f
CPU
CPU clock frequency
48
MHz
f
PBA
PBA clock frequency
48
f
PBB
PBB clock frequency
48
f
PBC
PBC clock frequency
48
f
PBD
PBD clock frequency
48
f
GCLK0
GCLK0 clock frequency
DFLLIF main reference, GCLK0 pin
50
f
GCLK1
GCLK1 clock frequency
DFLLIF dithering and SSG reference,
GCLK1 pin
GCLK1 pin
50
f
GCLK2
GCLK2 clock frequency
AST, GCLK2 pin
20
f
GCLK3
GCLK3 clock frequency
CATB, GCLK3 pin
50
f
GCLK4
GCLK4 clock frequency
FLO and AESA
50
f
GCLK5
GCLK5 clock frequency
GLOC, TC0 and RC32KIFB_REF
80
f
GCLK6
GCLK6 clock frequency
ABDACB and IISC
50
f
GCLK7
GCLK7 clock frequency
USBC
50
f
GCLK8
GCLK8 clock frequency
TC1 and PEVC[0]
50
f
GCLK9
GCLK9 clock frequency
PLL0 and PEVC[1]
50
f
GCLK10
GCLK10 clock
frequency
frequency
ADCIFE
50
f
GCLK11
GCLK11 clock
frequency
frequency
Master generic clock. Can be used as
source for other generic clocks
source for other generic clocks
150
f
OSC0
OSC0 output frequency
Oscillator 0 in crystal mode
30
Oscillator 0 in digital clock mode
50
f
PLL
PLL output frequency
Phase Locked Loop
240
f
DFLL
DFLL output frequency
Digital Frequency Locked Loop
220
f
RC80M
RC80M output
frequency
frequency
Internal 80MHz RC Oscillator
80