SLAS701B November   2010  – June 2018 MSP430AFE221 , MSP430AFE222 , MSP430AFE223 , MSP430AFE231 , MSP430AFE232 , MSP430AFE233 , MSP430AFE251 , MSP430AFE252 , MSP430AFE253

PRODUCTION DATA.  

  1. 1Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  3. 3Device Comparison
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagrams
    2. 4.2 Signal Descriptions
      1. Table 4-1 Terminal Functions
  5. 5Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Resistance Characteristics for PW-24 Package
    5. 5.5  Active Mode Supply Current (Into DVCC and AVCC) Excluding External Current
    6. 5.6  Typical Characteristics – Active-Mode Supply Current (Into DVCC and AVCC)
    7. 5.7  Low-Power-Mode Supply Currents (Into VCC) Excluding External Current
    8. 5.8  Typical Characteristics – LPM4 Current
    9. 5.9  Schmitt-Trigger Inputs (Ports Px and RST/NMI)
    10. 5.10 Leakage Current (Ports Px)
    11. 5.11 Outputs (Ports Px)
    12. 5.12 Output Frequency (Ports Px)
    13. 5.13 Typical Characteristics – Outputs
    14. 5.14 POR, BOR
    15. 5.15 Typical Characteristics – POR, BOR
    16. 5.16 Supply Voltage Supervisor (SVS), Supply Voltage Monitor (SVM)
    17. 5.17 Main DCO Characteristics
    18. 5.18 DCO Frequency
    19. 5.19 Calibrated DCO Frequencies – Tolerance
    20. 5.20 Wake-up Times From Lower-Power Modes (LPM3, LPM4)
    21. 5.21 Typical Characteristics – DCO Clock Wake-up Time
    22. 5.22 Internal Very-Low-Power Low-Frequency Oscillator (VLO)
    23. 5.23 Crystal Oscillator (XT2)
    24. 5.24 Typical Characteristics – XT2 Oscillator
    25. 5.25 SD24_A, Power Supply
    26. 5.26 SD24_A, Input Range
    27. 5.27 SD24_A, Performance
    28. 5.28 SD24_A, Temperature Sensor and Built-In VCC Sense
    29. 5.29 SD24_A, Built-In Voltage Reference
    30. 5.30 SD24_A, Reference Output Buffer
    31. 5.31 SD24_A, External Reference Input
    32. 5.32 USART0
    33. 5.33 Timer_A3
    34. 5.34 Flash Memory
    35. 5.35 RAM
    36. 5.36 JTAG and Spy-Bi-Wire Interface
    37. 5.37 JTAG Fuse
  6. 6Detailed Description
    1. 6.1  CPU
    2. 6.2  Instruction Set
    3. 6.3  Operating Modes
    4. 6.4  Interrupt Vector Addresses
    5. 6.5  Special Function Registers
      1. Table 6-4 Interrupt Enable Register 1 Field Descriptions
      2. Table 6-5 Interrupt Flag Register 1 Field Descriptions
      3. Table 6-6 Module Enable Register 1 Field Descriptions
    6. 6.6  Memory Organization
    7. 6.7  Flash Memory
    8. 6.8  Peripherals
    9. 6.9  Oscillator and System Clock
    10. 6.10 Brownout, Supply Voltage Supervisor
    11. 6.11 Digital I/O
    12. 6.12 Watchdog Timer (WDT+)
    13. 6.13 Timer_A3
    14. 6.14 USART0
    15. 6.15 Hardware Multiplier
    16. 6.16 SD24_A
    17. 6.17 Peripheral File Map
    18. 6.18 I/O Port Schematics
      1. 6.18.1 Port P1 Pin Schematic: P1.0 Input/Output With Schmitt Trigger
      2. 6.18.2 Port P1 Pin Schematic: P1.1 and P1.2 Input/Output With Schmitt Trigger
      3. 6.18.3 Port P1 Pin Schematic: P1.3 Input/Output With Schmitt Trigger
      4. 6.18.4 Port P1 Pin Schematic: P1.4 Input/Output With Schmitt Trigger
      5. 6.18.5 Port P1 Pin Schematic: P1.5 to P1.7 Input/Output With Schmitt Trigger
      6. 6.18.6 Port P2 Pin Schematic: P2.0 Input/Output With Schmitt Trigger
      7. 6.18.7 Port P2 Pin Schematic: P2.6, Input/Output With Schmitt Trigger
      8. 6.18.8 Port P2 Pin Schematic: P2.7, Input/Output With Schmitt Trigger
      9. 6.18.9 JTAG Fuse Check Mode
  7. 7Device and Documentation Support
    1. 7.1 Getting Started
    2. 7.2 Device Nomenclature
    3. 7.3 Tools and Software
    4. 7.4 Documentation Support
    5. 7.5 Related Links
    6. 7.6 Community Resources
    7. 7.7 Trademarks
    8. 7.8 Electrostatic Discharge Caution
    9. 7.9 Glossary
  8. 8Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.11 Digital I/O

Two I/O ports are implemented: 8-bit port P1 and 3-bit port P2.

  • 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 eight bits of port P1 and three bits of port P2.
  • Read and write access to port-control registers is supported by all instructions.
  • Each I/O has an individually programmable pullup or pulldown resistor.

Because there are only three I/O pins implemented from port P2, bits [5:1] of all port P2 registers read as 0, and write data is ignored.