SN8P1708P芯片解密案例

SN8P1708P  Features：
♦ Memory configuration ♦ Seven interrupt sources
OTP ROM size: 4K * 16 bits. Four internal interrupts: T0, TC0, TC1, SIO.
RAM size: 256 * 8 bits (bank 0 and bank 1). Three external interrupts: INT0, INT1, INT2.
♦ I/O pin configuration (Total 33 pins) ♦ An 8-channel ADC with 8-bit/12-bit resolution.
Input only: P0
Bi-directional: P1, P2, P4, P5 ♦ One channel DAC with 7-bit resolution.
Wakeup: P0, P1
Pull-up resisters: P0, P1, P2, P4, P5
External interrupt: P0 ♦ SIO function.
P4 pins shared with ADC inputs. ♦ Two channel PWM output. (PWM0, PWM1)
♦ Two channel Buzzer output. (BZ0, BZ1)
♦ An 8-bit basic timer. (T0).
♦ Two 8-bit timer counters. (TC0, TC1). ♦ Dual clock system offers three operating modes
♦ On chip watchdog timer. External high clock: RC type up to 10 MHz
♦ Eight levels stack buffer. External high clock: Crystal type up to 16 MHz
Internal low clock: RC type 16KHz(3V), 32KHz(5V)
♦ 60 powerful instructions Normal mode: Both high and low clock active
Four clocks per instruction cycle Slow mode: Low clock only
All of instructions are one word length. Sleep mode: Both high and low clock stop
Most of instructions are one cycle only.
All ROM area lookup table function (MOVC)
Support hardware multiplier (MUL).
♦ Package (Chip form support)
QPF 44 pins (SN8P1707)
SSOP 48 pins (SN8P1708)
PDIP 48 pins (SN8P1708)
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