Maxim Integrated 71M6513H Power Meter IC Family Software - Manual (Page 129)

71M651x Software User’s Guide
6.3.5.3. Interrupt Priority Level Structure
All interrupt sources are combined in groups:
group
0 External interrupt 0 Serial channel 1 interrupt
1 Timer 0 interrupt - External interrupt 2
2 External interrupt 1 - External interrupt 3
3 Timer 1 interrupt - External interrupt 4
4 Serial channel 0 interrupt - External interrupt 5
5 - - External interrupt 6
Table 6-51: Priority Level Groups
Each group of interrupt sources can be programmed individually to one of four priority levels by setting or clearing one
bit in the special function register IP0 and one in IP1.
If requests of the same priority level are received simultane-
ously, an internal polling sequence determines which request is serviced first.
The functionality of the external interrupts is described in Table 6-51.
External
Interrupt
Connection Polarity Flag Reset
0 Digital I/O High Priority see DIO_Rx automatic
1 Digital I/O Low Priority see DIO_Rx automatic
2 Comparator falling automatic
3 CE_BUSY falling automatic
4 Comparator rising automatic
5 EEPROM busy falling automatic
6 XFER_BUSY OR RTC_1SEC falling manual
Table 6-52: External MPU Interrupts
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