uM-FPU v3.1 Floating Point Math Coprocessor DIP18

• New for V3.1:
• Busy/Ready Status on OUT1 pin
• SEROUT / SERIN instructions for serial data transfer & GPS (NMEA) inputs
• WRBLK for transferring 32 bit values from microcontroller to uM-FPU
• RDBLK for transferring 32 bit values from uM-FPU to microcontroller
• MOP instructions (for matrix operations)
• STRBYTE for storing the lower 8 bits of register 0 to string buffer
• STRINC for incrementing the string selection point
• STRDEC for decrementing the string selection point
• RET,cc for conditiona return from user-defined functions
• READVAR offers two new values for retrieval
• SETSTATUS
• Auto-Start Function Call for setting chip behavior on reset
• 10 to 20 times faster than uM-FPU V2 for all floating point operations
• Up to 70 times faster for advanced instructions
• 256 byte instruction buffer
• 128 general purpose 32-bit registers for storing floating point or long integer values
• 8 temporary 32-bit registers to support parentheses in calculations
• 2048 bytes Flash memory for user-defined functions
• 1024 bytes EEPROM for data storage or user-defined functions
• Supports 2.7V, 3.3V and 5V supply voltage
• I2C compatible interface up to 400 kHz
• SPI compatible interface up to 15 MHz
• Expanded instruction set, matrix operations, A/D conversion, string handling

Floating Point Operations

• Set, Add, Subtract, Multiply, Divide, Power
• Sqrt, Log, Log10, Exp, Exp10, Root
• Sin, Cos, Tan, Asin, Acos, Atan, Atan2
• Floor, Ceil, Round, Min, Max, Fraction, Mod
• Negate, Abs, Inverse
• Multiply and Accumulate, Multiply and Subtract from Accumulator
• Unit Conversions
• Read, Write, Compare, Status

  Long Integer Operations

• Set, Add, Subtract, Multiply, Divide, Unsigned Divide
• Negate, Abs, Increment, Decrement
• And, Or, Xor, Not, Shift, Test, Min, Max
  
• Read 8-bit, 16-bit, and 32-bit
  
• Read, Write, Compare, Unsigned Compare, Status

  Matrix Operations

• Scalar Add, Subtract, Multiply, Divide, Power
  
• Element-wise add, Subtract, Multiply, Divide, Power
  
• Matrix multiply
  
• Count, Sum, Average, Minimum, Maximum
  
• Matrix copy

  Fast Fourier Transform Operation

• uses matrix to store FFT data points
  
• single instruction if all FFT data points fit in matrix
  
• used iteratively in stages for larger FFT data sets
  
• inverse transform also supported

  Conversion Functions

• Convert 8-bit and 16-bit integers to floating point
  
• Convert 8-bit and 16-bit integers to long integer
  
• Convert long integer to floating point
  
• Convert floating point to long integer
  
• Convert floating point to formatted ASCII
  
• Convert long integer to formatted ASCII
  
• Convert ASCII to floating point
  
• Convert ASCII to long integer
• Serin, Serout for serial data communications

  User Defined Functions

• Can be stored in Flash or EEPROM memory
  
• Conditional execution
  
• Table lookup
  
• Reverse table lookup (float and long integer)
  
• Nth order polynomials
• Ret - for conditional returns

  Analog to Digital Conversion

• Two 12-bit A/D channels
  
• External input, timer or manual triggers
  
• Optional scaling and conversion to floating point
  
• Up to 10,000 samples per second

  String Handling

• Select, insert, append
  
• Search for characters
  
• Search for fields (e.g. parsing a GPS NMEA sentence)
  
• Convert selection to floating point or long integer

  Miscellaneous

• Checksum to calculate checksum for uM-FPU code
• Left & Right for saving/moving registers
• Readvar