MSP430F449IPZ datasheet(26/79 Pages) TI

26 / 79 page

MSP430x43x1, MSP430x43x, MSP430x44x1, MSP430x44x

MIXED SIGNAL MICROCONTROLLER

SLAS344G − JANUARY 2002 − REVISED OCTOBER 2009

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

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

UTXIE0

OFIE

WDTIE

rw–0

Address

URXIE0

ACCVIE

NMIIE

rw–0

WDTIE:

Watchdog-timer interrupt enable. Inactive if watchdog mode is selected. Active if watchdog

timer is configured in interval timer mode.

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

UTXIE1

rw–0

Address

01h

URXIE1

rw–0

BTIE

URXIE1:

USART1: UART and SPI receive-interrupt enable (MSP430F44x(1) devices only)

UTXIE1:

USART1: UART and SPI transmit-interrupt enable (MSP430F44x(1) devices only)

BTIE:

Basic timer interrupt enable

interrupt flag register 1 and 2

UTXIFG0

OFIFG

WDTIFG

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 VCC

power up 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

UTXIFG1

rw–1

rw–0

Address

03h

URXIFG1

BTIFG

URXIFG1:

USART1: UART and SPI receive flag (MSP430F44x(1) devices only)

UTXIFG1:

USART1: UART and SPI transmit flag (MSP430F44x(1) devices only)

BTIFG:

Basic timer flag

MSP430F449IPZ Datasheet(PDF) 26 Page - Texas Instruments

MSP430F449IPZ Datasheet(HTML) 26 Page - Texas Instruments

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