TCFG1_MUX_SHIFT
(TCFG1_MUX_DIV16 << TCFG1_MUX_SHIFT(3)) |
(TCFG1_MUX_DIV16 << TCFG1_MUX_SHIFT(4)) );
#define TCFG1_MUX_MASK(n) (0x0f << TCFG1_MUX_SHIFT(n))
(TCFG1_MUX_DIV16 <<TCFG1_MUX_SHIFT(0)) & TCFG1_MUX_MASK(0);