MSP430F22X2_17 Datasheet, PDF (17/94 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F22x2
MSP430F22x4
www.ti.com
SLAS504G – JULY 2006 – REVISED AUGUST 2012
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.
Legend
rw
rw-0, 1
rw-(0), (1)
Bit can be read and written.
Bit can be read and written. It is Reset or Set by PUC.
Bit can be read and written. It is Reset or Set by POR.
SFR bit is not present in device.
Address
00h
WDTIE
OFIE
NMIIE
ACCVIE
Table 8. Interrupt Enable 1
7
6
5
4
3
2
1
0
ACCVIE
NMIIE
OFIE
WDTIE
rw-0
rw-0
rw-0
rw-0
Watchdog timer interrupt enable. Inactive if watchdog mode is selected. Active if watchdog timer is configured in interval
timer mode.
Oscillator fault interrupt enable
(Non)maskable interrupt enable
Flash access violation interrupt enable
Address
01h
UCA0RXIE
UCA0TXIE
UCB0RXIE
UCB0TXIE
Table 9. Interrupt Enable 2
7
6
5
4
3
UCB0TXIE
rw-0
USCI_A0 receive-interrupt enable
USCI_A0 transmit-interrupt enable
USCI_B0 receive-interrupt enable
USCI_B0 transmit-interrupt enable
2
UCB0RXIE
rw-0
1
UCA0TXIE
rw-0
0
UCA0RXIE
rw-0
Address
02h
WDTIFG
OFIFG
RSTIFG
PORIFG
NMIIFG
Table 10. Interrupt Flag Register 1
7
6
5
4
3
2
1
0
NMIIFG
RSTIFG
PORIFG
OFIFG
WDTIFG
rw-0
rw-(0)
rw-(1)
rw-1
rw-(0)
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.
Flag set on oscillator fault
External reset interrupt flag. Set on a reset condition at RST/NMI pin in reset mode. Reset on V_CC power up.
Power-on reset interrupt flag. Set on V_CC power up.
Set via RST/NMI pin
Address
03h
UCA0RXIFG
UCA0TXIFG
UCB0RXIFG
UCB0TXIFG
Table 11. Interrupt Flag Register 2
7
6
5
4
3
2
1
0
UCB0TXIFG UCB0RXIFG UCA0TXIFG UCA0RXIFG
rw-1
rw-0
rw-1
rw-0
USCI_A0 receive-interrupt flag
USCI_A0 transmit-interrupt flag
USCI_B0 receive-interrupt flag
USCI_B0 transmit-interrupt flag
Copyright © 2006–2012, Texas Instruments Incorporated
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