ADE7566 datasheet(81/136 Pages) AD

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Preliminary Technical Data

ADE7566/ADE7569

Rev. PrA | Page 81 of 136

Table 65. Interrupt Priority SFR (IP, 0xB8)

Bit No.

Address

Mnemonic

Description

0xBF

PADE

ADE Energy Measurement Interrupt Priority (1 = high, 0 = low).

0xBE

PTEMP

Temperature ADC Interrupt Priority (1 = high, 0 = low).

0xBD

PT2

Timer 2 Interrupt Priority (1 = high, 0 = low).

0xBC

UART Serial Port Interrupt Priority (1 = high, 0 = low).

0xBB

PT1

Timer 1 Interrupt Priority (1 = high, 0 = low).

0xBA

PX1

INT1 (External Interrupt 1) Priority (1 = high, 0 = low).

0xB9

PT0

Timer 0 Interrupt Priority (1 = high, 0 = low).

0xB8

PX0

INT0 (External Interrupt 0) Priority (1 = high, 0 = low).

Table 66. Interrupt Enable and Priority 2 SFR (IEIP2, 0xA9)

Bit No.

Mnemonic

Description

–

PTI

RTC Interrupt Priority (1 = high, 0 = low).

–

PSI

SPI/I2C Interrupt Priority (1 = high, 0 = low).

EADE

Enables the Energy Metering Interrupt (ADE). Set by the user.

ETI

Enables the RTC Interval Timer Interrupt. Set by the user.

EPSM

Enables the PSM Power Supply Management Interrupt. Set by the user.

ESI

Enables the SPI/I2C Interrupt. Set by the user.

INTERRUPT PRIORITY

If two interrupts of the same priority level occur simultaneously, the polling sequence is observed (as shown in Table 67).

Table 67. Priority Within Interrupt Level

Source

Priority

Description

IPSM

0 (Highest)

Power Supply Monitor Interrupt.

IRTC

RTC Interval Timer Interrupt.

IADE

ADE Energy Measurement Interrupt.

WDT

Watchdog Timer Overflow Interrupt.

ITEMP

Temperature ADC Interrupt.

IE0

External Interrupt 0.

TF0

Timer/Counter 0 Interrupt.

IE1

External Interrupt 1.

TF1

Timer/Counter 1 Interrupt.

ISPI/I2CI

SPI/I2C Interrupt.

RI/TI

UART Serial Port Interrupt.

TF2/EXF2

11 (Lowest)

Timer/Counter 2 Interrupt.

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