Datasheet
Table Of Contents
- features
- description
- Available Options
- pin designation -- MSP430F241x, 80-pin package
- pin designation -- MSP430F241x, 64-pin package
- pin designation -- MSP430F261x, 80-pin package
- pin designation -- MSP430F261x, 64-pin package
- functional block diagram -- MSP430F241x, 80-pin package
- functional block diagram -- MSP430F241x, 64-pin package
- functional block diagram -- MSP430F261x, 80-pin package
- functional block diagram -- MSP430F261x, 64-pin package
- Terminal Functions
- short-form description
- Data Sheet Revision History
MSP430x241x, MSP430x261x
MIXED SIGNAL MICROCONTROLLER
SLAS541 -- JUNE 2007
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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.
interrupt enable 1 and 2
Address76543210
00h
ACCVIE NMIIE OFIE WDTIE
rw--0 rw--0 rw--0 rw--0
Interrupt Enable register 1
WDTIE Watchdog timer interrupt enable. Inactive if watchdog mode is selected.
Active if watchdog timer is configured as general-purpose timer.
OFIE Oscillator-fault-interrupt enable
NMIIE Nonmaskable-interrupt enable
ACCVIE Flash memory access violation interrupt enable
Address76543210
01h
UCB0TXIE UCB0RXIE UCA0TXIE UCA0RXIE
rw--0 rw--0 rw--0 rw--0
Interrupt Enable register 2
UCA0RXIE USCI_A0 receive--interrupt enable
UCA0TXIE USCI_A0 transmit--interrupt enable
UCB0RXIE USCI_B0 receive--interrupt enable
UCB0TXIE USCI_B0 transmit--interrupt enable
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