SYSCLK configuration register
LS_DIV_NUM | clk_hproot is div1 of low-speed clock-source if clck-source is a low-speed clock-source such as XTAL/FOSC. |
HS_DIV_NUM | clk_hproot is div3 of SPLL if the clock-source is high-speed clock SPLL. |
SOC_CLK_SEL | This field is used to select clock source. 0: XTAL, 1: SPLL, 2: FOSC, 3: reserved. |
CLK_XTAL_FREQ | This field indicates the frequency(MHz) of XTAL. |