pub type I2S2SRC_W<'a> = BitWriter<'a, u32, CFGR2_SPEC, I2S2SRC_A, 17>;
Field I2S2SRC writer - I2S2 clock source
I2S2SRC
System clock (SYSCLK) selected as I2S clock entry
PLL3 VCO clock selected as I2S clock entry