NXP NXP P89v51rb2/rc2/rd2 Single chip microcomputer decryption chip hack Method!

NXP NXP P89v51rb2/rc2/rd2 single chip decryption chip hack

The P89v51rb2/rc2/rd2 is a 80C51 microcontroller that contains 16/32/64kb Flash and 1024 bytes of data ram.

The typical feature of P89V51RB2/RC2/RD2 is its X2 mode option. With this feature, the design engineer can enable the application to run at the clock frequency of the traditional 80c51 clock frequency (which consists of 12 clocks per machine cycle) or X2 mode (6 clocks per machine cycle), and the X2 method can achieve twice times the throughput at the same clock frequency. Another way to benefit from this feature is to reduce the frequency of the clock by half and keep the characteristics constant, which greatly reduces electromagnetic interference (EMI). Flash program memory supports parallel and serial in system programming (ISP). Parallel programming provides high-speed packet Programming (page programming), which saves programming costs and time-to-market.

The ISP allows repetitive programming of the devices in the finished product under software control. The ability to generate/update the firmware enables a wide range of applications from the ISP. P89v51rb2/rc2/rd2 can also be programmed in applications (IAP), allowing the Flash program memory to be reconfigured at any time, even if the application is running.

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P89V51 Chip Features:

Operating frequency in 12x mode is 20MHz in 0mhz~33mhz,6x mode

8kB in-chip flash user code memory, 256B RAM

Enhanced UART, 3 16-bit timers/counters, 4 x 8-bit I/O ports

Selectable 12: (default) or 6: mode via software or online programming (ICP)

DIP40, PLCC44, and LQFP44 packages, 6 interrupt sources, 4 priority

Second DPTR register, low EMI Mode (Ale Forbidden)

Low power mode with external interrupt wakeup, idle mode

Extended temperature range, 3 safe bits, programmable clock output pins

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NXP NXP P89v51rb2/rc2/rd2 Single chip microcomputer decryption chip hack Method!