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MSP430FW423IPM Datasheet(PDF) 9 Page - Texas Instruments

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Part # MSP430FW423IPM
Description  MIXED SIGNAL MICROCONTROLLER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

MSP430FW423IPM Datasheet(HTML) 9 Page - Texas Instruments

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MSP430xW42x
MIXED SIGNAL MICROCONTROLLER
SLAS383B − OCTOBER 2003 − REVISED JUNE 2007
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
special function registers
Most interrupt and module enable bits are collected into the lowest address space. Special function register bits
that are not allocated to a functional purpose are not physically present in the device. Simple software access
is provided with this arrangement.
interrupt enable 1 and 2
7
654
0
OFIE
WDTIE
32
1
rw-0
rw-0
rw-0
Address
00h
ACCVIE
NMIIE
rw-0
7
654
0
32
1
Address
01h
BTIE
rw-0
WDTIE:
Watchdog-timer interrupt enable. Inactive if watchdog mode is selected. Active if watchdog timer is
configured in interval timer mode.
OFIE:
Oscillator-fault-interrupt enable
NMIIE:
Nonmaskable-interrupt enable
ACCVIE:
Flash access violation interrupt enable
BTIE:
Basic Timer1 interrupt enable
interrupt flag register 1 and 2
7
654
0
OFIFG
WDTIFG
32
1
rw-0
rw-1
rw-(0)
Address
02h
NMIIFG
7
654
0
32
1
Address
03h
BTIFG
rw-0
WDTIFG:
Set on watchdog-timer overflow (in watchdog mode) or security key violation. Reset with VCC power-up,
or a reset condition at the RST/NMI pin in reset mode.
OFIFG:
Flag set on oscillator fault
NMIIFG:
Set via RST/NMI pin
BTIFG:
Basic Timer1 interrupt flag
module enable registers 1 and 2
7
654
0
32
1
Address
04h/05h
rw-0,1:
Legend: rw:
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 Not Present in Device
rw-(0,1):


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