32.8 Core and Bus Independent Clocks for Peripherals

The following table lists the peripherals that can operate while the core, bus and peripheral clock frequencies are modified, thus providing communications at a bit rate which is independent for the core/bus/peripheral clock. This mode of operation is possible by using the internally generated independent clock sources.

Table 32-1. Clock Assignments
PeripheralSpecific Clock Requirements
GMAC
UDPHS
UHPHS
CLASSDGCLK
I2SCGCLK
FLEXCOM (USART, SPI, TWI)GCLK
ISCPCK (pad clock)
MCANGCLK
TCGCLK
ADCGCLK
UARTGCLK
TWIGCLK
SPIGCLK