msp430f2121irge Microchip Technology Inc., msp430f2121irge Datasheet - Page 7

• Manufacturer Part Number: msp430f2121irge
• Description: Msp430
• Manufacturer: Microchip Technology Inc.

special function registers
interrupt enable 1 and 2
interrupt flag register 1 and 2
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.
WDTIE:
OFIE:
NMIIE:
ACCVIE:
WDTIFG:
OFIFG:
RSTIFG:
PORIFG:
NMIIFG:
Address
0h
Address
01h
Address
02h
Address
03h
Legend
rw:
rw-0,1:
rw-(0,1):
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
Set on Watchdog Timer overflow (in watchdog mode) or security key violation.
Reset on V
Flag set on oscillator fault
External reset interrupt flag. Set on a reset condition at RST/NMI pin in reset mode. Reset on V
power−up
Power−On Reset interrupt flag. Set on V
Set via RST/NMI-pin
7
7
7
7
CC
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
6
6
6
6
power-up or a reset condition at RST/NMI pin in reset mode.
rw-0
POST OFFICE BOX 655303
ACCVIE
5
5
5
5
rw-0
rw-0
NMIIFG
NMIIE
4
4
4
4
•
DALLAS, TEXAS 75265
CC
power−up.
rw-(0)
RSTIFG
MIXED SIGNAL MICROCONTROLLER
3
3
3
3
SLAS439C − SEPTEMBER 2004 − REVISED JULY 2006
rw-(1)
PORIFG
2
2
2
2
rw-1
rw-0
OFIFG
OFIE
1
1
1
1
MSP430x21x1
rw-(0)
rw-0
WDTIFG
WDTIE
0
0
0
0
CC
7