diff options
Diffstat (limited to 'include/x86/pit.h')
| -rw-r--r-- | include/x86/pit.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/x86/pit.h b/include/x86/pit.h index 854b76a..0c54539 100644 --- a/include/x86/pit.h +++ b/include/x86/pit.h @@ -25,7 +25,6 @@ ** M - mode ** BCD - binary or BCD counter */ - /* Frequency settings */ #define PIT_DEFAULT_TICKS_PER_SECOND 18 // actually 18.2065Hz #define PIT_DEFAULT_MS_PER_TICK (1000 / PIT_DEFAULT_TICKS_PER_SECOND) @@ -68,6 +67,7 @@ #define PIT_2_RATE 0x06 // square-wave, for USART /* Timer read-back */ + #define PIT_READBACK 0xc0 // perform a read-back #define PIT_RB_NOT_COUNT 0x20 // don't latch the count #define PIT_RB_NOT_STATUS 0x10 // don't latch the status |