MSP430X43X1_08 Datasheet, PDF (22/73 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x43x1, MSP430x43x, MSP430x44x
MIXED SIGNAL MICROCONTROLLER
SLAS344F − JANUARY 2002 − REVISED MAY 2007
special function registers
Most interrupt and module-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
Address
7
6
5
4
3
0h
UTXIE0
URXIE0
ACCVIE
NMIIE
rw–0
rw–0
rw–0
rw–0
2
1
0
OFIE
WDTIE
rw–0
rw–0
WDTIE:
OFIE:
NMIIE:
ACCVIE:
URXIE0:
UTXIE0:
Watchdog-timer interrupt enable. Inactive if watchdog mode is selected. Active if watchdog
timer is configured in interval timer mode.
Oscillator-fault-interrupt enable
Nonmaskable-interrupt enable
Flash access violation interrupt enable
USART0: UART and SPI receive-interrupt enable
USART0: UART and SPI transmit-interrupt enable
Address
7
6
5
4
3
2
1
0
01h
BTIE
UTXIE1
URXIE1
rw–0
rw–0
rw–0
URXIE1:
UTXIE1:
BTIE:
USART1: UART and SPI receive-interrupt enable (MSP430F44x devices only)
USART1: UART and SPI transmit-interrupt enable (MSP430F44x devices only)
Basic timer interrupt enable
interrupt flag register 1 and 2
Address
7
6
5
4
3
02h
UTXIFG0 URXIFG0
NMIIFG
rw–1
rw–0
rw–0
2
1
0
OFIFG
WDTIFG
rw–1
rw–(0)
WDTIFG:
OFIFG:
NMIIFG:
URXIFG0:
UTXIFG0:
Set on watchdog timer overflow (in watchdog mode) or security key violation. Reset on V_CC
power up or a reset condition at the RST/NMI pin in reset mode.
Flag set on oscillator fault
Set via RST/NMI pin
USART0: UART and SPI receive flag
USART0: UART and SPI transmit flag
Address
7
6
5
4
3
2
1
0
03h
BTIFG
UTXIFG1 URXIFG1
rw
rw–1
rw–0
URXIFG1:
UTXIFG1:
BTIFG:
USART1: UART and SPI receive flag (MSP430F44x devices only)
USART1: UART and SPI transmit flag (MSP430F44x devices only)
Basic timer flag
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