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SLAS753B Folha de dados(PDF) 8 Page - Texas Instruments |
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SLAS753B Folha de dados(HTML) 8 Page - Texas Instruments |
8 / 44 page MSP430G22x0 SLAS753D – JANUARY 2012 – REVISED AUGUST 2012 www.ti.com 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. 8 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated |
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