ISR0_IMR0_PAGE
fluke_paged_write_byte(e_priv, 0, ISR0_IMR0, ISR0_IMR0_PAGE);
status0 = fluke_paged_read_byte(priv, ISR0_IMR0, ISR0_IMR0_PAGE);
fluke_paged_write_byte(e_priv, FLUKE_IFCIE_BIT, ISR0_IMR0, ISR0_IMR0_PAGE);