The MCHC912B32CFUE8 is a 16-bit Microcontroller composed of standard on-chip peripherals including a 16-bit central processing unit (CPU12), 32kB flash EEPROM, 1kB RAM, 768-byte EEPROM, an asynchronous serial communications interface (SCI), a serial peripheral inter-face (SPI), an 8-channel timer and 16-bit pulse accumulator, a 10-bit analog-to-digital converter (ADC), a four-channel pulse-width modulator (PWM) and a J1850-compatible byte data link communications module (BDLC). The chip is the first 16-bit microcontroller to include both byte-erasable EEPROM and flash EEPROM on the same device. System resource mapping, clock generation, interrupt control and bus interfacing are managed by the lite integration module (LIM). The device has full 16-bit data paths throughout, however, the multiplexed external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced. for lower cost systems.
- 16-bit CPU12
- Upwardly compatible with the M68HC11 instruction set
- Interrupt stacking and programmer's model identical to the M68HC11
- 20-bit Arithmetic logic unit (ALU)
- Instruction queue
- Enhanced indexed addressing
- Fuzzy logic instructions
- Multiplexed bus - single chip or expanded, 16-bit by 16-bit wide or 16-bit by 8-bit narrow modes
- 8-channel Standard timer module (TIM)
- 16-bit Pulse accumulator
- Pulse-width modulator (PWM)
- Asynchronous serial communications interface (SCI)
- Synchronous serial peripheral interface (SPI)
- J1850 byte data link communication (BDLC)
- Computer operating properly (COP) watchdog timer, clock monitor and periodic interrupt timer
- Slow-mode clock divider
- Single-wire background debug mode (BDM)
- On-chip hardware breakpoints
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