MSP430F2619S-HT Datasheet, PDF (17/90 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2619S-HT
www.ti.com
SLAS697B – MARCH 2010 – REVISED JUNE 2011
Brownout, Supply Voltage Supervisor (SVS)
The brownout circuit is implemented to provide the proper internal reset signal to the device during power on and
power off. The SVS circuitry detects if the supply voltage drops below a user selectable level and supports both
supply voltage supervision (the device is automatically reset) and supply voltage monitoring (SVM) (the device is
not automatically reset).
The CPU begins code execution after the brownout circuit releases the device reset. However, V_CC may not have
ramped to V_CC(min) at that time. The user must ensure that the default DCO settings are not changed until VCC
reaches V_CC(min). If desired, the SVS circuit can be used to determine when V_CC reaches V_CC(min).
Digital I/O
There are six 8-bit I/O ports implemented – ports P1 through P6:
• All individual I/O bits are independently programmable.
• Any combination of input, output, and interrupt condition is possible.
• Edge-selectable interrupt input capability for all the eight bits of port P1 and P2.
• Read/write access to port-control registers is supported by all instructions.
• Each I/O has an individually programmable pullup/pulldown resistor.
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 disabled or configured as an interval timer and can
generate interrupts at selected time intervals.
Hardware Multiplier
The multiplication operation is supported by a dedicated peripheral module. The module performs 16 × 16,
16 × 8, 8 × 16, and 8 × 8 bit operations. The module is capable of supporting signed and unsignedmultiplication
as well as signed and unsignedmultiply and accumulate operations. The result of an operation can be accessed
immediately after the operands have been loaded into the peripheral registers. No additional clock cycles are
required.
USCI
The universal serial communication interface (USCI) module is used for serial data communication. The USCI
module supports synchronous communication protocols like SPI (3 or 4 pin), I²C and asynchronous
communication protocols like UART, enhanced UART with automatic baud-rate detection (LIN), and IrDA.
USCI_A0 provides support for SPI (3 or 4 pin), UART, enhanced UART and IrDA.
USCI_B0 provides support for SPI (3 or 4 pin) and I²C.
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