1
Download eCOG1X User Manual V2
Transcript
Version 2.7 6.6 eCOG1X User Manual Timer Interrupts All of the timer modules can be programmed to generate interrupts depending on their configuration, clock controls and asynchronous inputs. In addition the watchdog timer and capture timers generate exception conditions when an error is detected. Interrupts are listed below by timer: Address Timer Interrupt Description 0x20 TMR tmr_exp A TMR count strobe has occurred when the TMR timer value is zero. 0x40 LTMR ltmr_exp An LTMR count strobe has occurred when the LTMR timer value is zero. 0x2A PWM1 pwm1_exp A PWM1 count strobe has occurred when the PWM1 timer value is zero. 0x2E PWM1 pwm1_match The PWM1 timer value is the same as the tim.pwm2_val register. 0x2C PWM2 pwm2_exp A PWM2 count strobe has occurred when the PWM2 timer value is zero. 0x30 PWM2 pwm2_match The PWM2 timer value is the same as the tim.pwm2_val register. 0x22 CNT1 cnt1_exp A CNT1 count strobe has occurred when the CNT1 timer/counter value is zero. 0x26 CNT1 cnt1_match The CNT1 timer/counter value is the same as the tim.cnt1_cmp register. 0x24 CNT2 cnt2_exp A CNT2 count strobe has occurred when the CNT2 timer/counter value is zero. 0x28 CNT2 cnt2_match The CNT2 timer/counter value is the same as the tim.cnt2_cmp register. 0x0A WDOG wdog_exp A WDOG count strobe has occurred when the watchdog timer value is zero. This is a special exception case. 0x32 CAP cap_exp A CAP count strobe has occurred when the CAP timer is at its maximum value. 0x34 0x36 0x38 0x3A 0x3C 0x3E CAP cap1 cap2 cap3 cap4 cap5 cap6 A trigger event has been detected on one of the six asynchronous capture inputs and the associated tim.cap_val* register has been loaded with the current CAP count value. 0x10 CAP cap1_ovwr cap2_ovwr cap3_ovwr cap4_ovwr cap5_ovwr cap6_ovwr A second trigger event has been detected on a capture input before its associated tim.cap_val* register has been read. This is an exception. Table 14: Timer interrupts Page 6-8 Cyan Technology Ltd 21 October 2009
