Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller SOIC 8 16-Bit 16 MHz I/O number 4

MSP430G22x0

SLAS753E –JANUARY 2012–REVISED FEBRUARY 2013

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Interrupt Vector Addresses

The interrupt vectors and the power-up starting address are located in the address range of 0x0FFFF to

0x0FFC0. The vector contains the 16-bit address of the appropriate interrupt handler instruction sequence.

If the reset vector (located at address 0x0FFFE) contains 0x0FFFF (for example, flash is not programmed) the

CPU goes into LPM4 immediately after power-up.

Table 6. Interrupt Sources

SYSTEM

INTERRUPT SOURCE INTERRUPT FLAG WORD ADDRESS PRIORITY

INTERRUPT

Power-up

PORIFG

External reset

RSTIFG

Watchdog Timer+ Reset 0xFFFE 31, highest

WDTIFG

Flash key violation

KEYV

(2)

PC out-of-range

(1)

NMI NMIIFG (non)-maskable,

Oscillator fault OFIFG (non)-maskable, 0xFFFC 30

Flash memory access violation ACCVIFG

(2)(3)

(non)-maskable

0xFFFA 29

0xFFF8 28

Comparator_A+

CAIFG

(4)

0xFFF6 27

(MSP430G2210 Only)

Watchdog Timer+ WDTIFG maskable 0xFFF4 26

Timer_A2 TACCR0 CCIFG

(4)

maskable 0xFFF2 25

Timer_A2 TACCR1 CCIFG, TAIFG

(2)(4)

maskable 0xFFF0 24

0xFFEE 23

0xFFEC 22

ADC10 (MSP430G2230 Only) ADC10IFG

(4)

maskable 0xFFEA 21

USI (MSP430G2230 Only) USIIFG, USISTTIFG

(2)(4)

maskable 0xFFE8 20

0xFFE6 19

P1IFG.2, P1IFG.5, P1IFG.6, and

I/O Port P1(four flags) maskable 0xFFE4 18

P1IFG.7

(2)(4)(5)

0xFFE2 17

0xFFE0 16

See

(6)

0xFFDE to 0xFFC0 15 to 0, lowest

(1) A reset is generated if the CPU tries to fetch instructions from within the module register memory address range (0h to 01FFh) or from

within unused address ranges.

(2) Multiple source flags

(3) (non)-maskable: the individual interrupt-enable bit can disable an interrupt event, but the general interrupt enable cannot.

(4) Interrupt flags are located in the module.

(5) All eight interrupt flags P1IFG.0 to P1IFG.7 are implemented while four are connected to pins.

(6) The interrupt vectors at addresses 0xFFDE to 0xFFC0 are not used in this device and can be used for regular program code if

necessary.