Datasheet
MSP430F23x
MSP430F24x(1)
MSP430F2410
SLAS547I –JUNE 2007–REVISED DECEMBER 2012
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Special Function Registers
Most interrupt enable bits are collected in the lowest address space. Special-function register bits not allocated to
a functional purpose are not physically present in the device. This arrangement provides simple software access.
Legend
rw Bit can be read and written.
rw-0, 1 Bit can be read and written. It is Reset or Set by PUC.
rw-(0), (1) Bit can be read and written. It is Reset or Set by POR.
SFR bit is not present in device.
Table 8. Interrupt Enable 1
Address 7 6 5 4 3 2 1 0
00h ACCVIE NMIIE OFIE WDTIE
rw-0 rw-0 rw-0 rw-0
WDTIE Watchdog timer interrupt enable. Inactive if watchdog mode is selected. Active if watchdog timer is configured in interval
timer mode.
OFIE Oscillator fault interrupt enable
NMIIE (Non)maskable interrupt enable
ACCVIE Flash access violation interrupt enable
Table 9. Interrupt Enable 2
Address 7 6 5 4 3 2 1 0
01h UCB0TXIE UCB0RXIE UCA0TXIE UCA0RXIE
rw-0 rw-0 rw-0 rw-0
UCA0RXIE USCI_A0 receive-interrupt enable
UCA0TXIE USCI_A0 transmit-interrupt enable
UCB0RXIE USCI_B0 receive-interrupt enable
UCB0TXIE USCI_B0 transmit-interrupt enable
Table 10. Interrupt Flag Register 1
Address 7 6 5 4 3 2 1 0
02h NMIIFG RSTIFG PORIFG OFIFG WDTIFG
rw-0 rw-(0) rw-(1) rw-1 rw-(0)
WDTIFG Set on watchdog timer overflow (in watchdog mode) or security key violation.
Reset on V
CC
power-up or a reset condition at RST/NMI pin in reset mode.
OFIFG Flag set on oscillator fault
RSTIFG External reset interrupt flag. Set on a reset condition at RST/NMI pin in reset mode. Reset on V
CC
power up.
PORIFG Power-on reset interrupt flag. Set on V
CC
power up.
NMIIFG Set via RST/NMI pin
Table 11. Interrupt Flag Register 2
Address 7 6 5 4 3 2 1 0
03h UCB0TXIFG UCB0RXIFG UCA0TXIFG UCA0RXIFG
rw-1 rw-0 rw-1 rw-0
UCA0RXIFG USCI_A0 receive-interrupt flag
UCA0TXIFG USCI_A0 transmit-interrupt flag
UCB0RXIFG USCI_B0 receive-interrupt flag
UCB0TXIFG USCI_B0 transmit-interrupt flag
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