Analog Devices ADSP-BF59x Blackfin, Hardware Reference Manual, Page: 316 / 772

Timer Registers
8-38 ADSP-BF59x Blackfin Processor Hardware Reference
Timer Status Register (TIMER_STATUS)
The
TIMER_STATUS
register indicates the status of the timers and is used to
check the status of multiple timers with a single read. Status bits are sticky
and W1C. The
TRUN
bits can clear themselves, which they do when a
PWM_OUT
mode timer stops at the end of a period. During a
TIMER_STATUS
register read access, all reserved or unused bits return a "0". Figure 8-18
on page 8-39 shows an example of the
TIMER_STATUS
register for a product
with eight timers.
For detailed behavior and usage of the
TRUN
bit see “Stopping the Timer in
PWM_OUT Mode” on page 8-21 . Writing the
TRUN
bits has no effect in
other modes or when a timer has not been enabled. Writing the
TRUN
bits
to "1" in
PWM_OUT
mode has no effect on a timer that has not first been
disabled.
Error conditions are explained in “Illegal States” on page 8-7 .