MSP430C33X_00 Datasheet, PDF (9/39 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLERS

MSP430C33x, MSP430P337A
MIXED SIGNAL MICROCONTROLLERS
SLAS227A – OCTOBER 1999 – REVISED JUNE 2000
operation modes and interrupts (continued)
interrupt flag registers 1 and 2
Address
7
6
02h
5
4
3
2
1
0
NMIIFG
P0IFG.1
P0IFG.0
OFIFG
WDTIFG
rw-0
rw-0
rw-0
rw-1
rw-0
WDTIFG:
OFIFG:
P0IFG.0:
P0IFG.1:
NMIIFG:
Set on overflow or security key violation
or
Reset on VCC1 power-on or reset condition at RST/NMI-pin
Flag set on oscillator fault
Dedicated I/O P0.0
P0.1 or 8-Bit Timer/Counter, RXD
Signal at RST/NMI-pin
Address
7
6
5
4
3
2
03h
BTIFG
1
UTXIFG
0
URXIFG
rw
rw-1
rw-0
URXIFG:
UTXIFG:
BTIFG:
USART receive flag
USART transmit flag
Basic Timer1 flag
module enable registers 1 and 2
Address
7
6
5
4
3
2
1
0
04h
Address
7
6
5
4
3
05h
Bit 0: USART mode: USART receive enable, URXE
SPI mode: SPI enable, USPIE
Bit 1: USART mode: USART transmit enable, UTXE
SPI mode: not applicable
Legend rw:
rw-0:
Bit can be read and written
Bit can be read and written. It is reset by PUC.
SFR bit not present in device
2
1
0
UTXE URXE/USPIE
rw-0
rw-0
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