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Renesas Microprocessor R5F64169DFB Flash Unlocking
Renesas Microprocessor R5F64169DFB Flash Unlocking is a process to remove the tamper resistance mechanism and copy microcontroller firmware into other blank MCU R5F64169DFB#U0 which will provide the same functions as original version;
Unit Function Explanation
CPU Central processing unit R32C/100 Series CPU Core
• Basic instructions: 108
• Minimum instruction execution time: 20 ns (f(CPU) = 50 MHz)
• Multiplier: 32-bit × 32-bit 64-bit
• Multiply-accumulate unit: 32-bit × 32-bit + 64-bit 64-bit
• IEEE-754 compatible FPU: Single precision
• 32-bit barrel shifter
• Operating mode: Single-chip mode, memory expansion mode, microprocessor mode (optional (1))
Flash memory: 256 to 512 Kbytes
RAM: 32 to 63 Kbytes
Data flash: 4 Kbytes × 2 blocks
Refer to Table 1.5 for memory size of each product group
Voltage Detector Low voltage detector Optional (1)
Low voltage detection interrupt
Clock Clock generator • 4 circuits (main clock, sub clock, PLL, on-chip oscillator)
• Oscillation stop detector: Main clock oscillator stop/restart detection for the same mechanism of MCU PIC18F6722 Code extraction
• Frequency divide circuit: Divide-by-2 to divide-by-24 selectable
• Low power modes: Wait mode, stop mode
External Bus Expansion Bus and memory expansion • Address space: 4 Gbytes (of which up to 64 Mbytes is user accessible)
• External bus Interface: Support for wait-state insertion, 4 chip select outputs, 3V/5V interface
• Bus format: Separate bus/Multiplexed bus selectable, data bus width selectable (8/16 bits)
Interrupts Interrupt vectors: 261
External interrupt inputs: NMI, INT × 6, key input × 4 Interrupt priority levels: 7
Watchdog Timer 15 bits × 1 (selectable input frequency from prescaler output)
DMA DMAC 4 channels
• Cycle-steal transfer mode
• Request sources: 51
• 2 transfer modes: Single transfer, repeat transfer
DMAC II • Triggered by an interrupt request of any peripheral
• 3 characteristic transfer functions: Immediate data transfer, calculation result transfer, chain transfer I/O Ports Programmable I/O ports • 2 input-only ports by Crack Microprocessor IC Freescale MC9S12XDG128
• 82 CMOS I/O ports
• 2 N-channel open drain ports
• A pull-up resistor is selectable for every 4 input ports