MSP430F2274-EP_16 Datasheet, PDF (9/80 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2274-EP
www.ti.com
SLAS614D – SEPTEMBER 2008 – REVISED MAY 2011
Special Function Registers
Most interrupt and module enable bits are collected into the lowest address space. Special function register bits
not allocated to a functional purpose are not physically present in the device. Simple software access is provided
with this arrangement.
Interrupt Enable 1 and 2
Address
7
00h
6
5
4
3
ACCVIE
NMIIE
rw-0
rw-0
2
1
0
OFIE
WDTIE
rw-0
rw-0
WDTIE:
OFIE:
NMIIE:
ACCVIE:
Watchdog Timer interrupt enable. Inactive if watchdog mode is selected. Active if Watchdog Timer
is configured in interval timer mode.
Oscillator fault enable
(Non)maskable interrupt enable
Flash access violation interrupt enable
Address
7
6
5
01h
UCA0RXIE USCI_A0 receive-interrupt enable
UCA0TXIE USCI_A0 transmit-interrupt enable
UCB0RXIE USCI_B0 receive-interrupt enable
UCB0TXIE USCI_B0 transmit-interrupt enable
4
3
2
1
0
UCB0TXIE UCB0RXIE UCA0TXIE UCA0RXIE
rw-0
rw-0
rw-0
rw-0
Interrupt Flag Register 1 and 2
Address
7
6
02h
5
4
3
2
1
0
NMIIFG
RSTIFG
PORIFG
OFIFG
WDTIFG
rw-0
rw-(0)
rw-(1)
rw-1
rw-(0)
WDTIFG: Set on Watchdog Timer overflow (in watchdog mode) or security key violation.
Reset on V_CC power-up or a reset condition at RST/NMI pin in reset mode.
OFIFG: Flag set on oscillator fault
RSTIFG: External reset interrupt flag. Set on a reset condition at RST/NMI pin in reset mode. Reset on V_CC
power up.
PORIFG: Power-On Reset interrupt flag. Set on V_CC power up.
NMIIFG: Set via RST/NMI-pin
Address
7
6
5
4
3
2
1
0
03h
UCB0
UCB0
UCA0
UCA0
TXIFG
RXIFG
TXIFG
RXIFG
rw-1
rw-0
rw-1
rw-0
UCA0RXIFG USCI_A0 receive-interrupt flag
UCA0TXIFG USCI_A0 transmit-interrupt flag
UCB0RXIFG USCI_B0 receive-interrupt flag
UCB0TXIFG USCI_B0 transmit-interrupt flag
xxx
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