SLAA559E April   2014  – November 2016 MSP430AFE221 , MSP430AFE222 , MSP430AFE223 , MSP430AFE231 , MSP430AFE232 , MSP430AFE233 , MSP430AFE251 , MSP430AFE252 , MSP430AFE253 , MSP430F2001 , MSP430F2002 , MSP430F2003 , MSP430F2011 , MSP430F2012 , MSP430F2013 , MSP430F2013-EP , MSP430F2101 , MSP430F2111 , MSP430F2112 , MSP430F2121 , MSP430F2122 , MSP430F2131 , MSP430F2132 , MSP430F2232 , MSP430F2234 , MSP430F2252 , MSP430F2254 , MSP430F2272 , MSP430F2274 , MSP430F233 , MSP430F2330 , MSP430F235 , MSP430F2350 , MSP430F2370 , MSP430F2410 , MSP430F2416 , MSP430F2417 , MSP430F2418 , MSP430F2419 , MSP430F247 , MSP430F2471 , MSP430F248 , MSP430F2481 , MSP430F249 , MSP430F2491 , MSP430F2616 , MSP430F2617 , MSP430F2618 , MSP430F2619 , MSP430FR5847 , MSP430FR58471 , MSP430FR5848 , MSP430FR5849 , MSP430FR5857 , MSP430FR5858 , MSP430FR5859 , MSP430FR5867 , MSP430FR58671 , MSP430FR5868 , MSP430FR5869 , MSP430FR5870 , MSP430FR5872 , MSP430FR58721 , MSP430FR5887 , MSP430FR5888 , MSP430FR5889 , MSP430FR58891 , MSP430FR5922 , MSP430FR59221 , MSP430FR5947 , MSP430FR59471 , MSP430FR5948 , MSP430FR5949 , MSP430FR5957 , MSP430FR5958 , MSP430FR5959 , MSP430FR5967 , MSP430FR5968 , MSP430FR5969 , MSP430FR59691 , MSP430FR5970 , MSP430FR5972 , MSP430FR59721 , MSP430FR5986 , MSP430FR5987 , MSP430FR5988 , MSP430FR5989 , MSP430FR5989-EP , MSP430FR59891 , MSP430FR5994 , MSP430FR6820 , MSP430FR6822 , MSP430FR68221 , MSP430FR6870 , MSP430FR6872 , MSP430FR68721 , MSP430FR6877 , MSP430FR6879 , MSP430FR68791 , MSP430FR6887 , MSP430FR6888 , MSP430FR6889 , MSP430FR68891 , MSP430FR6920 , MSP430FR6922 , MSP430FR69221 , MSP430FR6927 , MSP430FR69271 , MSP430FR6928 , MSP430FR6970 , MSP430FR6972 , MSP430FR69721 , MSP430FR6977 , MSP430FR6979 , MSP430FR69791 , MSP430FR6987 , MSP430FR6988 , MSP430FR6989 , MSP430FR69891 , MSP430G2001 , MSP430G2101 , MSP430G2102 , MSP430G2111 , MSP430G2112 , MSP430G2121 , MSP430G2131 , MSP430G2132 , MSP430G2152 , MSP430G2153 , MSP430G2201 , MSP430G2202 , MSP430G2203 , MSP430G2210 , MSP430G2211 , MSP430G2212 , MSP430G2213 , MSP430G2221 , MSP430G2230 , MSP430G2231 , MSP430G2232 , MSP430G2233 , MSP430G2252 , MSP430G2253 , MSP430G2302 , MSP430G2303 , MSP430G2312 , MSP430G2313 , MSP430G2332 , MSP430G2333 , MSP430G2352 , MSP430G2353 , MSP430G2402 , MSP430G2403 , MSP430G2412 , MSP430G2413 , MSP430G2432 , MSP430G2433 , MSP430G2452 , MSP430G2453 , MSP430G2513 , MSP430G2533 , MSP430G2553

 

  1.   Migrating from the MSP430F2xx and MSP430G2xx Families to the MSP430FR58xx/FR59xx/68xx/69xx Family
    1.     Trademarks
    2. 1 Introduction
    3. 2 In-System Programming of Nonvolatile Memory
      1. 2.1 Ferroelectric RAM (FRAM) Overview
      2. 2.2 FRAM Cell
      3. 2.3 Protecting FRAM Using the Memory Protection Unit
        1. 2.3.1 Dynamically Partitioning FRAM
      4. 2.4 FRAM Memory Wait States
      5. 2.5 Bootloader (BSL)
      6. 2.6 JTAG and Security
      7. 2.7 Production Programming
    4. 3 Hardware Migration Considerations
    5. 4 Device Calibration Information
    6. 5 Important Device Specifications
    7. 6 Core Architecture Considerations
      1. 6.1 Power Management Module (PMM)
      2. 6.2 Clock System
      3. 6.3 Operating Modes, Wakeup, and Reset
      4. 6.4 Determining the Cause of Reset
      5. 6.5 Interrupt Vectors
      6. 6.6 FRAM and the FRAM Controller
        1. 6.6.1 Flash and FRAM Overview Comparison
        2. 6.6.2 Cache Architecture
      7. 6.7 RAM Controller (RAMCTL)
    8. 7 Peripheral Considerations
      1. 7.1 Watchdog Timer
      2. 7.2 Ports
        1. 7.2.1 Digital Input/Output
        2. 7.2.2 Capacitive Touch I/O
      3. 7.3 Analog-to-Digital Converters
        1. 7.3.1 ADC12 to ADC12_B
        2. 7.3.2 ADC10 to ADC12_B
      4. 7.4 REF_A Module
      5. 7.5 Comparator_A to Comparator_E
      6. 7.6 Hardware Multiplier (HWMPY32)
      7. 7.7 DMA Controller
      8. 7.8 Low-Energy Accelerator (LEA) for Signal Processing
      9. 7.9 Communication Modules
        1. 7.9.1 USI to eUSCI
        2. 7.9.2 USCI to eUSCI
    9. 8 Conclusion
    10. 9 References
  2.   Revision History

7.2.2 Capacitive Touch I/O

The main difference in the capacitive touch implementation between the G2xx and the FR59xx lies in the selection of the port pins and the internal wiring of the capacitive touch I/O to the timer.

In the F2xx and G2xx devices with the pin oscillator feature, the selection of the pin oscillator is enabled through the PxSELy register.

On some G2xx devices, only one pin oscillator can be enabled at a time.

In the FR59xx devices, there are two registers CAPTIO0CTL and CAPTIO1CTL. Each of these registers can be used to select a port and a specific pin in that port that can then be used as a capacitive touch I/O.

For example, the CAPTIOPOSELx field in the Capacitive Touch IO x Control Register (CAPTIO0CTL) can select port 1. The CATPIOPISELx field in the same register can select pin 5. Hence, pin 1.5 is designated as a capacitive touch I/O.

For each CAPTIOxCTL register, the selected capacitive touch I/O is hard wired (internally connected) to a specific timer. According to the device-specific data sheet, CAPTIO0CTL selection is internally connected to TA2 and the CAPTIO1CTL selection is internally connected to TA3.

Hence, in the case of the FR59xx, it is possible to connect two capacitive touch elements to two different timers that can then be sampled simultaneously. Conceptually, the principle of generating a capacitive touch based oscillation that is then fed to a timer remains the same in both device families.