 Разработка, производство и продажа радиоэлектронной аппаратуры  |
Требуется программист в Зеленограде
- обработка данных с датчиков; ColdFire; 40 тыс. e-mail:jobsmp@pochta.ru |
There are two stages of interrupt priority assignment: interrupt level and natural priority.
The interrupt level (high, or low) takes precedence over natural priority. All interrupts
can be assigned either high or low priority. In addition to an assigned priority level (high
or low), each interrupt has a natural priority, as listed in Table 36. Simultaneous
interrupts with the same priority level (for example, both high) are resolved according to
their natural priority. For example, if INT0_N and int2 are both programmed as high
priority, INT0_N takes precedence. Once an interrupt is being serviced, only an interrupt
of higher priority level can interrupt the service routine of the interrupt currently being
serviced.
