MSP430FR6889 Datasheet, PDF (71/176 Pages) Texas Instruments – Mixed-Signal Microcontrollers

www.ti.com
MSP430FR6889, MSP430FR68891, MSP430FR6888, MSP430FR6887
MSP430FR5889, MSP430FR58891, MSP430FR5888, MSP430FR5887
SLASE32A – AUGUST 2014 – REVISED MARCH 2015
6 Detailed Description
6.1 Overview
The Texas Instruments MSP430FR688x and MSP430FR588x families of ultra-low-power microcontrollers
consists of several devices featuring different sets of peripherals. The architecture, combined with seven
low-power modes is optimized to achieve extended battery life for example in flow metering applications.
The devices features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that
contribute to maximum code efficiency.
The MSP430FR688x and MSP430FR588x devices are microcontroller configurations with an extended
scan interface (ESI) for background water, heat and gas volume metering together with up to five 16-bit
timers, Comparator, universal serial communication interfaces (eUSCI) supporting UART, SPI, and I²C,
hardware multiplier, DMA, real-time clock module with alarm capabilities, up to 83 I/O pins, and an high-
performance 12-bit analog-to-digital converter (ADC). The MSP430FR698x devices also include an LCD
module with contrast contral for displays with up to 320 segments.
6.2 CPU
The MSP430 CPU has a 16-bit RISC architecture that is highly transparent to the application. All
operations, other than program-flow instructions, are performed as register operations in conjunction with
seven addressing modes for source operand and four addressing modes for destination operand.
The CPU is integrated with 16 registers that provide reduced instruction execution time. The register-to-
register operation execution time is one cycle of the CPU clock.
Four of the registers, R0 to R3, are dedicated as program counter, stack pointer, status register, and
constant generator, respectively. The remaining registers are general-purpose registers.
Peripherals are connected to the CPU using data, address, and control buses, and can be handled with all
instructions.
The instruction set consists of the original 51 instructions with three formats and seven address modes
and additional instructions for the expanded address range. Each instruction can operate on word and
byte data.
Copyright © 2014–2015, Texas Instruments Incorporated
Detailed Description
71
Submit Documentation Feedback
Product Folder Links: MSP430FR6889 MSP430FR68891 MSP430FR6888 MSP430FR6887 MSP430FR5889
MSP430FR58891 MSP430FR5888 MSP430FR5887