MSP430F673X Datasheet, PDF (29/121 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

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MSP430F673x
MSP430F672x
SLAS731A – DECEMBER 2011 – REVISED APRIL 2012
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
INTERRUPT VECTOR REGISTER
SYSRSTIV, System Reset
SYSSNIV, System NMI
SYSUNIV, User NMI
INTERRUPT EVENT
No interrupt pending
Brownout (BOR)
RST/NMI (POR)
DoBOR (BOR)
Wakeup from LPMx.5 (BOR)
Security violation (BOR)
SVSL (POR)
SVSH (POR)
SVML_OVP (POR)
SVMH_OVP (POR)
DoPOR (POR)
WDT timeout (PUC)
WDT key violation (PUC)
KEYV flash key violation (PUC)
Reserved
Peripheral area fetch (PUC)
PMM key violation (PUC)
Reserved
No interrupt pending
SVMLIFG
SVMHIFG
DLYLIFG
DLYHIFG
VMAIFG
JMBINIFG
JMBOUTIFG
VLRLIFG
VLRHIFG
Reserved
No interrupt pending
NMIFG
OFIFG
ACCVIFG
AUXSWNMIFG
Reserved
WORD
ADDRESS
019Eh
019Ch
019Ah
OFFSET
00h
02h
04h
06h
08h
0Ah
0Ch
0Eh
10h
12h
14h
16h
18h
1Ah
1Ch
1Eh
20h
22h to 3Eh
00h
02h
04h
06h
08h
0Ah
0Ch
0Eh
10h
12h
14h to 1Eh
00h
02h
04h
06h
08h
0Ah to 1Eh
PRIORITY
Highest
Lowest
Highest
Lowest
Highest
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.
Copyright © 2011–2012, Texas Instruments Incorporated
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