Datasheet

Table Of Contents
MSP430FG42x0
MIXED SIGNAL MICROCONTROLLER
SLAS556A − JULY 2007 − REVISED AUGUST 2007
10
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
special function registers (SFRs)
The MSP430 SFRs 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