SAM4L Datasheet, PDF (1108/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
42.3 Maximum Clock Frequencies
Table 42-4. Maximum Clock Frequencies in Power Scaling Mode 0/2 and RUN Mode ⁽¹⁾
Symbol Parameter
Description
Max
Units
f_CPU
CPU clock frequency
48
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
50
f_GCLK2
f_GCLK3
f_GCLK4
f_GCLK5
f_GCLK6
f_GCLK7
f_GCLK8
f_GCLK9
f_GCLK10
GCLK2 clock frequency
GCLK3 clock frequency
GCLK4 clock frequency
GCLK5 clock frequency
GCLK6 clock frequency
GCLK7 clock frequency
GCLK8 clock frequency
GCLK9 clock frequency
GCLK10 clock
frequency
AST, GCLK2 pin
CATB, GCLK3 pin
FLO and AESA
GLOC, TC0 and RC32KIFB_REF
ABDACB and IISC
USBC
TC1 and PEVC[0]
PLL0 and PEVC[1]
ADCIFE
20
50
50
80
50
MHz
50
50
50
50
f_GCLK11
GCLK11 clock
frequency
Master generic clock. Can be used as
source for other generic clocks
150
Oscillator 0 in crystal mode
30
f_OSC0
OSC0 output frequency
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
Internal 80MHz RC Oscillator
80
1. These parameters are based on simulation in the following conditions: temperature = -
40°C to 85°C.
42023C–SAM–02/2013
1108