MSP430F6779A Datasheet, PDF (78/176 Pages) Texas Instruments – Polyphase Metering SoCs

MSP430F6779A, MSP430F6778A, MSP430F6777A, MSP430F6776A, MSP430F6775A
MSP430F6769A, MSP430F6768A, MSP430F6767A, MSP430F6766A, MSP430F6765A
MSP430F6749A, MSP430F6748A, MSP430F6747A, MSP430F6746A, MSP430F6745A
SLAS982 – MAY 2014
www.ti.com
6.11.7 System Module (SYS) (Link to User's Guide)
The SYS module handles many of the system functions within the device. These include power on reset
and power up clear handling, NMI source selection and management, reset interrupt vector generators,
bootstrap loader entry mechanisms, and configuration management (device descriptors). It also includes a
data exchange mechanism using JTAG called a JTAG mailbox that can be used in the application.
Table 6-13. System Module Interrupt Vector Registers
INTERRUPT VECTOR REGISTER
SYSRSTIV, System Reset
ADDRESS
019Eh
SYSSNIV, System NMI
019Ch
SYSUNIV, User NMI
019Ah
INTERRUPT EVENT
No interrupt pending
Brownout (BOR)
RST/NMI (POR)
DoBOR (BOR)
Wakeup from LPMx.5
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
AUXSWGIFG
Reserved
VALUE
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
6.11.8 Watchdog Timer (WDT_A) (Link to User's Guide)
The primary function of the watchdog timer 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.
78
Detailed Description
Copyright © 2014, Texas Instruments Incorporated
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