32.5 Maximum Clock Frequencies

Table 32-6. Maximum GCLK Generator Output Frequencies
Symbol Description Max. Units
fGCLKGEN0/fGCLK_MAIN
fGCLKGEN1
fGCLKGEN2
fGCLKGEN3
fGCLKGEN4
fGCLKGEN5
fGCLKGEN6
fGCLKGEN7 GCLK Generator Output Frequency 48 MHz
Table 32-7. Maximum Peripheral Clock Frequencies
Symbol Description Max. Units
fCPU CPU clock frequency 48 MHz
fAHB AHB clock frequency 48 MHz
fAPBA APBA clock frequency 48 MHz
fAPBB APBB clock frequency 48 MHz
fAPBC APBC clock frequency 48 MHz
fGCLK_DFLL48M_REF DFLL48M Reference clock frequency 35.1 kHz
fGCLK_WDT WDT input clock frequency 48 MHz
fGCLK_RTC RTC input clock frequency 48 MHz
fGCLK_EIC EIC input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_0 EVSYS channel 0 input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_1 EVSYS channel 1 input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_2 EVSYS channel 2 input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_3 EVSYS channel 3 input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_4 EVSYS channel 4 input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_5 EVSYS channel 5 input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_6 EVSYS channel 6 input clock frequency 48 MHz
fGCLK_EVSYS_CHANNEL_7 EVSYS channel 7 input clock frequency 48 MHz
fGCLK_SERCOMx_SLOW Common SERCOM slow input clock frequency 48 MHz
fGCLK_SERCOM0_CORE SERCOM0 input clock frequency 48 MHz
fGCLK_SERCOM1_CORE SERCOM1 input clock frequency 48 MHz
fGCLK_SERCOM2_CORE SERCOM2 input clock frequency 48 MHz
fGCLK_SERCOM3_CORE SERCOM3 input clock frequency 48 MHz
fGCLK_SERCOM4_CORE SERCOM4 input clock frequency 48 MHz
fGCLK_SERCOM5_CORE SERCOM5 input clock frequency 48 MHz
fGCLK_TC0, GCLK_TC1 TC0,TC1 input clock frequency 48 MHz
fGCLK_TC2, GCLK_TC3 TC2,TC3 input clock frequency 48 MHz
fGCLK_TC4, GCLK_TC5 TC4,TC5 input clock frequency 48 MHz
fGCLK_TC6, GCLK_TC7 TC6,TC7 input clock frequency 48 MHz
fGCLK_ADC ADC input clock frequency 48 MHz
fGCLK_AC_DIG AC digital input clock frequency 48 MHz
fGCLK_AC_ANA AC analog input clock frequency 64 kHz
fGCLK_DAC DAC input clock frequency 48 MHz
fGCLK_PTC PTC input clock frequency 48 MHz