Datasheet

MSP430F673x
MSP430F672x
www.ti.com SLAS731C –DECEMBER 2011–REVISED FEBRUARY 2013
System Module (SYS)
The SYS module handles many of the system functions within the device. These include power on reset (POR)
and power up clear (PUC) handling, NMI source selection and management, reset interrupt vector generators,
boot strap loader entry mechanisms, as well as, configuration management (device descriptors). It also includes
a data exchange mechanism via JTAG called a JTAG mailbox that can be used in the application.
Table 16. System Module Interrupt Vector Registers
WORD
INTERRUPT VECTOR REGISTER INTERRUPT EVENT OFFSET PRIORITY
ADDRESS
No interrupt pending 00h
Brownout (BOR) 02h Highest
RST/NMI (POR) 04h
DoBOR (BOR) 06h
Wakeup from LPMx.5 (BOR) 08h
Security violation (BOR) 0Ah
SVSL (POR) 0Ch
SVSH (POR) 0Eh
SVML_OVP (POR) 10h
SYSRSTIV, System Reset 019Eh
SVMH_OVP (POR) 12h
DoPOR (POR) 14h
WDT timeout (PUC) 16h
WDT key violation (PUC) 18h
KEYV flash key violation (PUC) 1Ah
Reserved 1Ch
Peripheral area fetch (PUC) 1Eh
PMM key violation (PUC) 20h
Reserved 22h to 3Eh Lowest
No interrupt pending 00h
SVMLIFG 02h Highest
SVMHIFG 04h
DLYLIFG 06h
DLYHIFG 08h
SYSSNIV, System NMI VMAIFG 019Ch 0Ah
JMBINIFG 0Ch
JMBOUTIFG 0Eh
VLRLIFG 10h
VLRHIFG 12h
Reserved 14h to 1Eh Lowest
No interrupt pending 00h
NMIFG 02h Highest
OFIFG 04h
SYSUNIV, User NMI 019Ah
ACCVIFG 06h
AUXSWNMIFG 08h
Reserved 0Ah to 1Eh Lowest
Watchdog Timer (WDT_A)
The primary function of the watchdog timer (WDT_A) module is to perform a controlled system restart after a
software problem occurs. If the selected time interval expires, a system reset is generated. If the watchdog
function is not needed in an application, the timer can be configured as an interval timer and can generate
interrupts at selected time intervals.
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