Datasheet

MSP430FG43x
MIXED SIGNAL MICROCONTROLLER
SLAS380C − APRIL 2004 − REVISED MARCH 2011
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
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 1 and 2
7654 0
UTXIE0 OFIE WDTIE
321
rw–0 rw–0 rw–0
Address
0h URXIE0 ACCVIE NMIIE
rw–0 rw–0 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
URXIE0: USART0: UART and SPI receive-interrupt enable
UTXIE0: USART0: UART and SPI transmit-interrupt enable
7654 0321
Address
01h
rw–0
BTIE
BTIE: Basic timer interrupt enable
interrupt flag register 1 and 2
7654 0
UTXIFG0 OFIFG WDTIFG
321
rw–0 rw–1 rw–(0)
Address
02h URXIFG0 NMIIFG
rw–1 rw–0
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
URXIFG0: USART0: UART and SPI receive flag
UTXIFG0: USART0: UART and SPI transmit flag
7654 0321
Address
03h
BTIFG
rw–0
BTIFG: Basic timer flag