ATTINY412 datasheet(31/479 Pages) MICROCHIP

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Base Address

Name

Description

0x0F00

SYSCFG

System Configuration

0x1000

NVMCTRL

Non Volatile Memory Controller

0x1100

SIGROW

Signature Row

0x1280

FUSES

Device specific fuses

0x1300

USERROW

User Row

7.2

Interrupt Vector Mapping

Each of the 26 interrupt vectors is connected to one peripheral instance, as shown in the table below. A

peripheral can have one or more interrupt sources, see the 'Interrupt' section in the 'Functional

Description' of the respective peripheral for more details on the available interrupt sources.

When the interrupt condition occurs, an Interrupt Flag (nameIF) is set in the Interrupt Flags register of the

peripheral (peripheral.INTFLAGS).

An interrupt is enabled or disabled by writing to the corresponding Interrupt Enable bit (nameIE) in the

peripheral's Interrupt Control register (peripheral.INTCTRL).

The naming of the registers may vary slightly in some peripherals.

An interrupt request is generated when the corresponding interrupt is enabled and the Interrupt Flag is

set. The interrupt request remains active until the Interrupt Flag is cleared. See the peripheral's

INTFLAGS register for details on how to clear Interrupt Flags.

Interrupts must be enabled globally for interrupt requests to be generated.

Table 7-2. Interrupt Vector Mapping

Vector Number Peripheral Source

Definition

RESET

CRCSCAN_NMI

NMI - Non-Maskable Interrupt from CRC

BOD_VLM

VLM - Voltage Level Monitor

PORTA_PORT

PORTA - Port A

RTC_CNT

RTC - Real Time Counter

RTC_PIT

PIT - Periodic Interrupt Timer (in RTC peripheral)

TCA0_LUNF / TCA0_OVF

TCA0 - Timer Counter Type A, LUNF / OVF

TCA0_HUNF

TCA0, HUNF

TCA0_LCMP0 / TCA0_CMP0 TCA0, LCMP0 / CMP0

TCA0_LCMP1 / TCA0_CMP1 TCA0, LCMP1 / CMP1

TCA0_CMP2 / TCA0_LCMP2 TCA0, LCMP2 / CMP2

TCB0_INT

TCB0 - Timer Counter Type B

TCD0_OVF

TCD0 - Timer Counter Type D, OVF

TCD0_TRIG

TCD0, TRIG

ATtiny212/412

Datasheet Preliminary

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