Audio class I2S is available through advanced PLL schemes. The new PLL block clocking the two I2S peripherals provides less than 0.5% error on the master clock connected to an external audio DAC. Audio sampling frequencies from 8kHz up to 96kHz are supported. More communication peripherals are also embedded in the product: USART, LIN Master/Slave, ISO7816 for SmartCard interface, IrDA Modem Control, SPI with SD/MMC support, I2C with SMBus and PMBus support. Thanks to the new triple PLL block, all the communication peripherals can run simultaneously from a single crystal.