TX39_INTRCLEAR1_REG
tx_conf_write(tc, TX39_INTRCLEAR1_REG,
#define TX39_INTRCLEAR_REG(x) (((x) - 1) * 4 + TX39_INTRCLEAR1_REG)
(((x) - 1) * 4 + TX39_INTRCLEAR1_REG) : \