WTCSR_CKS_4096
csr |= WTCSR_CKS_4096;
clock_division_ratio = WTCSR_CKS_4096;
"to 0x7 (5.25ms). (default=" __MODULE_STRING(WTCSR_CKS_4096) ")");
static int clock_division_ratio = WTCSR_CKS_4096;