ADE5166 datasheet(93/156 Pages) AD

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ADE5166/ADE5169/ADE5566/ADE5569

Rev. B | Page 93 of 156

Table 82. Interrupt Priority SFR (IP, Address 0xB8)

Bit

Bit 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 83. Interrupt Enable and Priority 2 SFR (IEIP2, Address 0xA9)

Bit

Mnemonic

Description

PS2

UART2 serial port interrupt priority (1 = high, 0 = low).

PTI

RTC interrupt priority (1 = high, 0 = low).

ES2

Enables the UART2 serial port interrupt. Set by the user.

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 84.

Table 84. Priority Within Interrupt Level

Source

Priority

Description

IPSM

0 (highest)

Power supply management 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

Timer/Counter 2 interrupt.

RI2/TI2

12 (lowest)

UART2 serial port interrupt.

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