Datasheet

Table Of Contents
MSP430F42x0
MIXED SIGNAL MICROCONTROLLER
SLAS455D − MARCH 2005 − REVISED APRIL 2007
10
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special function registers
The MSP430 special function registers(SFR) are located in the lowest address space, and are organized as
byte mode registers. SFRs should be accessed with byte instructions.
interrupt enable registers 1 and 2
7654 0
OFIE WDTIE
321
rw–0 rw–0 rw–0
Address
0h ACCVIE NMIIE
rw–0
WDTIE: Watchdog-timer interrupt enable. Inactive if watchdog mode is selected.
Active if watchdog timer is configured as a general-purpose timer.
OFIE: Oscillator-fault-interrupt enable
NMIIE: Nonmaskable-interrupt enable
ACCVIE: Flash access violation interrupt enable
7654 0321
Address
01h
rw–0
BTIE
BTIE: Basic timer interrupt enable
interrupt flag registers 1 and 2
7654 0
OFIFG WDTIFG
321
rw–0 rw–1 rw–(0)
Address
02h NMIIFG
WDTIFG: Set on watchdog timer overflow (in watchdog mode) or security key violation
Reset on V
CC
power-on or a reset condition at the RST/NMI pin in reset mode
OFIFG: Flag set on oscillator fault
NMIIFG: Set via RST
/NMI pin
7654 0321
Address
03h
BTIFG
rw–0
BTIFG: Basic timer flag