Defines | |
#define | TM_FREQ_SYS 0 |
System clock timer (16.7 Mhz). | |
#define | TM_FREQ_1 0 |
1 cycle/tick (16.7 Mhz) | |
#define | TM_FREQ_64 0x0001 |
64 cycles/tick (262 kHz) | |
#define | TM_FREQ_256 0x0002 |
256 cycles/tick (66 kHz) | |
#define | TM_FREQ_1024 0x0003 |
1024 cycles/tick (16 kHz) | |
#define | TM_CASCADE 0x0004 |
Increment when preceding timer overflows. | |
#define | TM_IRQ 0x0040 |
Enable timer irq. | |
#define | TM_ENABLE 0x0080 |
Enable timer. | |
#define | TM_FREQ_MASK 0x0003 |
#define | TM_FREQ_SHIFT 0 |
#define | TM_FREQ(n) ((n)<<TM_FREQ_SHIFT) |