MSP430FE42XA Datasheet, PDF (13/44 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430FE42xA
MIXED SIGNAL MICROCONTROLLER
SLAS588 -- FEBRUARY 2008
WDT+ watchdog timer
The primary function of the watchdog timer (WDT+) 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 module can be configured as an interval timer and can generate
interrupts at selected time intervals.
Timer_A3
Timer_A3 is a 16-bit timer/counter with three capture/compare registers. Timer_A3 can support multiple
capture/compares, PWM outputs, and interval timing. Timer_A3 also has extensive interrupt capabilities.
Interrupts may be generated from the counter on overflow conditions and from each of the capture/compare
registers.
INPUT PIN
NUMBER
48 - P1.5
48 - P1.5
53 - P1.0
52 - P1.1
51 - P1.2
51 - P1.2
45 - P2.0
DEVICE INPUT
SIGNAL
TACLK
ACLK
SMCLK
TACLK
TA0
TA0
DV_SS
DV_CC
TA1
TA1
DV_SS
DV_CC
TA2
ACLK (internal)
DV_SS
DV_CC
TIMER_A3 SIGNAL CONNECTIONS
MODULE INPUT
NAME
MODULE BLOCK
TACLK
ACLK
SMCLK
Timer
INCLK
CCI0A
CCI0B
GND
CCR0
V_CC
CCI1A
CCI1B
GND
CCR1
V_CC
CCI2A
CCI2B
GND
CCR2
V_CC
MODULE OUTPUT
SIGNAL
NA
TA0
TA1
TA2
OUTPUT PIN
NUMBER
53 - P1.0
51 - P1.2
45 - P2.0
universal synchronous/asynchronous receive transmit (USART)
The MSP430FE42xA devices have one hardware USART peripheral module (USART0) that is used for serial
data communication. The USART supports synchronous SPI (3 or 4 pin) and asynchronous UART
communication protocols, using double-buffered transmit and receive channels.
ESP430CE1A
The ESP430CE1A module integrates a hardware multiplier, three independent 16-bit sigma-delta A/D
converters (SD16) and an embedded signal processor (ESP430). The ESP430CE1A module measures 2-wire
or 3-wire single-phase energy and automatically calculates parameters that are made available to the MSP430
CPU. The module can be calibrated and initialized to accurately calculate energy, power factor, etc., for a wide
range of metering sensor configurations.
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