47     CommandCounter0 = 0x00, // Select counter 0.  enumerator
867             CommandCounter::CommandCounter0 as u8 | both_interrupt,  in write_and_latch()
876             CommandCounter::CommandCounter0 as u8 | CommandAccess::CommandLatch as u8,  in write_and_latch()
917             CommandCounter::CommandCounter0 as u8  in write_and_read_least()
925             CommandCounter::CommandCounter0 as u8 | CommandAccess::CommandLatch as u8,  in write_and_read_least()
937             CommandCounter::CommandCounter0 as u8  in write_and_read_most()
945             CommandCounter::CommandCounter0 as u8 | CommandAccess::CommandLatch as u8,  in write_and_read_most()
966             CommandCounter::CommandCounter0 as u8  in test_timed_latch()
973             CommandCounter::CommandCounter0 as u8 | CommandAccess::CommandLatch as u8,  in test_timed_latch()
979             CommandCounter::CommandCounter0 as u8 | CommandAccess::CommandLatch as u8,  in test_timed_latch()
985             CommandCounter::CommandCounter0 as u8 | CommandAccess::CommandLatch as u8,  in test_timed_latch()
1001             CommandCounter::CommandCounter0 as u8  in interrupt_mode()
1018             CommandCounter::CommandCounter0 as u8  in rate_gen_mode()
1042             CommandCounter::CommandCounter0 as u8  in square_wave_counter_read()
1063             CommandCounter::CommandCounter0 as u8  in rate_gen_counter_read()
1084             CommandCounter::CommandCounter0 as u8  in interrupt_counter_read()
1108             CommandCounter::CommandCounter0 as u8  in read_back_count_access_low()
1149             CommandCounter::CommandCounter0 as u8  in read_back_count_access_high()
1190             CommandCounter::CommandCounter0 as u8  in read_back_status()