FM8P51P解密

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    FM8P51P 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