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FM8P51F解密——Feeling单片机解密

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  FM8P51F FEATURES
  Only 47 single word instructions
  All instructions are single cycle except for program branches which are two-cycle
  13-bit wide instructions
  8-bit wide data path
  5-level deep hardware stack
  4K x 13 bits on chip EPROM/ROM
  140 x 8 bits on chip general purpose registers (SRAM)
  Operating speed: DC-20 MHz clock input DC-100 ns instruction cycle
  Direct, indirect addressing modes for data accessing
  One 8-bit real time clock/counter (Timer0) with 8-bit programmable prescaler
  Three 8-bit real time clock/counter (Timer1, Timer2, and Timer3) with period setting
  Internal Power-on Reset (POR)
  Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR)
  Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST)
  On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dog enable/disable control
  Five I/O ports (38 I/O pins) with independent direction control
  32 programmable pull-high input pins
  12 wake-up pins
  2 open-drain pins
  2 R-option pins
  Clock output with high driving ability
  19 channels of 15-bit resolution Resistor to Frequency Converter (RFC) output
  2 channels of maximum 10-bit resolution Pulse Width Modulation (PWM) output
  Built-in 8-bit data comparator
  Seven internal interrupt source: Timer0 overflow, Timer1 match, Timer2 match, Timer3 match, SPI module (Receive & Transmit), RFC module; One external interrupt source: INT pin change
  Wake-up from SLEEP by port input change
  Power saving SLEEP mode
  Programmable Code Protection
  Built-in RC oscillator with external resistor
  Selectable oscillator options:
  - ERC: External Resistor/Capacitor Oscillator
  - ERIC: External Resistor/Internal Capacitor Oscillator
  - HF: High Frequency Crystal/Resonator Oscillator
  - LF: Low Frequency Crystal Oscillator
  Wide-operating voltage range:
  - EPROM : 2.3V to 5.5V
  - ROM : 2.3V to 5.5V