Analog Devices SHARC ADSP-214 Series Hardware Reference Manual page 698

Interrupts
In order to perform calibration on the bench, use the
check the ppm deviation from 32.768 KHz. This ppm error is same as in
the internal 1Hz clock and the calibration register should be updated with
the corresponding values as explained above.
Interrupts
The RTC has one interrupt that is programmable through the program-
mable interrupt priority control register (see
Interrupt Control). The RTCI source bit is used to connect the RTC
interrupt to the peripheral interrupt inputs of the core.
vides and overview of RTC interrupts.
Table 18-2. RTC Interrupt Overview
Interrupt Source
RTC Counter
Service Interrupt Sources
One interrupt is shared by all the RTC interrupt sources. The sources are
based on the RTC counter:
• Per second
• Per minute
• Per hour
• Per day
18-10
www.BDTIC.com/ADI
Interrupt Interrupt
Condition Completion
–Second, minute,
hour, day
–daily alarm
–underflow/stop-
watch expiry
ADSP-214xx SHARC Processor Hardware Reference
RTCXTALIN
Appendix B, Peripheral
Table 18-2
Interrupt Acknowledge Default IVT
Read to clear
RTC_STAT +
RTI instruction
pin and
pro-
Need to route
RTCI (PICRx)
to any PxxI