參數(shù)資料
型號(hào)： MSP430F2274TRHAT
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC40
封裝： GREEN, PLASTIC, QFN-40
文件頁(yè)數(shù)： 9/94頁(yè)
文件大?。?/td> 1583K
代理商： MSP430F2274TRHAT
MSP430F22x2
MSP430F22x4
SLAS504E
– JULY 2006 – REVISED MARCH 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.
Legend
rw
Bit can be read and written.
rw-0, 1
Bit can be read and written. It is Reset or Set by PUC.
rw-(0), (1)
Bit can be read and written. It is Reset or Set by POR.
SFR bit is not present in device.
Table 8. Interrupt Enable 1
Address
7
6
5
4
3
2
1
0
00h
ACCVIE
NMIIE
OFIE
WDTIE
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
(Non)maskable interrupt enable
ACCVIE
Flash access violation interrupt enable
Table 9. Interrupt Enable 2
Address
7
6
5
4
3
2
1
0
01h
UCB0TXIE
UCB0RXIE
UCA0TXIE
UCA0RXIE
rw-0
UCA0RXIE
USCI_A0 receive-interrupt enable
UCA0TXIE
USCI_A0 transmit-interrupt enable
UCB0RXIE
USCI_B0 receive-interrupt enable
UCB0TXIE
USCI_B0 transmit-interrupt enable
Table 10. Interrupt Flag Register 1
Address
7
6
5
4
3
2
1
0
02h
UTXIFG0
URXIFG0
NMIIFG
RSTIFG
PORIFG
OFIFG
WDTIFG
rw-1
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 VCC 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 VCC power up.
PORIFG
Power-on reset interrupt flag. Set on VCC power up.
NMIIFG
Set via RST/NMI pin
Table 11. Interrupt Flag Register 2
Address
7
6
5
4
3
2
1
0
03h
UCB0TXIFG
UCB0RXIFG
UCA0TXIFG
UCA0RXIFG
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
Copyright
2006–2011, Texas Instruments Incorporated
17
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