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MSP430F438IPNR Datasheet(PDF) 10 Page - Texas Instruments

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Part # MSP430F438IPNR
Description  MIXED SIGNAL MICROCONTROLLER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
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MSP430F438IPNR Datasheet(HTML) 10 Page - Texas Instruments

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MSP430F43x
MIXED SIGNAL MICROCONTROLLER
SLAS713 -- JUNE 2010
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
special function registers
The MSP430 special function registers(SFR) are located in the lowest address space and are organized as byte
mode registers. SFRs should be accessed with byte instructions.
interrupt enable 1 and 2
76
54
0
UTXIE0
OFIE
WDTIE
32
1
rw–0
rw–0
rw–0
Address
0h
URXIE0
ACCVIE
NMIIE
rw–0
rw–0
rw–0
WDTIE:
Watchdog timer interrupt enable. Inactive if watchdog mode is selected.
Active if watchdog timer is configured as a general-purpose timer.
OFIE:
Oscillator fault interrupt enable
NMIIE:
Nonmaskable interrupt enable
ACCVIE:
Flash access violation interrupt enable
URXIE0:
USART0: UART and SPI receive-interrupt enable
UTXIE0:
USART0: UART and SPI transmit-interrupt enable
76
54
0
32
1
Address
01h
rw–0
BTIE
BTIE:
Basic timer interrupt enable
interrupt flag register 1 and 2
76
54
0
UTXIFG0
OFIFG
WDTIFG
32
1
rw–0
rw–1
rw–(0)
Address
02h
URXIFG0
NMIIFG
rw–1
rw–0
WDTIFG:
Set on watchdog timer overflow (in watchdog mode) or security key violation
Reset on VCC power-on or a reset condition at the RST/NMI pin in reset mode
OFIFG:
Flag set on oscillator fault
NMIIFG:
Set via RST/NMI pin
URXIFG0:
USART0: UART and SPI receive flag
UTXIFG0:
USART0: UART and SPI transmit flag
76
54
0
32
1
Address
03h
BTIFG
rw–0
BTIFG:
Basic timer flag


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