The S9S12GN32AVFT is a highly integrated microcontroller from the Freescale Semiconductor, which is now part of NXP Semiconductors. It belongs to the S12 MagniV family and is designed for automotive applications and other industrial control systems. Here are the key features of the S9S12GN32AVFT:
1. Central Processing Unit (CPU):
- 16-bit S12X CPU core with Harvard architecture.
- Up to 25 MHz bus frequency.
- Supports 32-bit instructions and 16-bit data paths.
2. Memory:
- 32 KB Flash program memory.
- 2 KB EEPROM for nonvolatile data storage.
- 2 KB RAM for data storage during program execution.
3. Peripherals:
- Eight-channel Analog-to-Digital Converter (ADC) with 8/10/12-bit resolution.
- Serial Communication Interface (SCI) supporting multiple protocols like UART, LIN, and asynchronous/synchronous modes.
- Serial Peripheral Interface (SPI) for connecting to external devices.
- Inter-Integrated Circuit (I2C) module for communication with other ICs.
- Pulse Width Modulation (PWM) channels for motor control and other precise voltage regulation applications.
- Timer modules including a real-time interrupt timer, free-running counter, and a watchdog timer.
- External interrupt pins for servicing external events or sensors.
4. System Protection and Debugging:
- On-chip low voltage detection (LVD) to monitor power supply voltage levels.
- Hardware watchdog timer to reset the system in case of software failures or lock-ups.
- Background Debug Mode (BDM) for low-level debugging and flash programming.
5. Operating Conditions:
- Wide voltage supply range from 4.5V to 5.5V.
- Can operate at temperatures ranging from -40°C to +125°C, suitable for harsh automotive environments.
6. Package and Pin Count:
- Available in TSSOP-48 package.
- 48 pins, including GPIOs, power, and ground pins for interfacing with external devices.
7. Development Tools and Software:
- Integrated Development Environment (IDE) for software development and debugging.
- CodeWarrior Development Studio for S12(X) provides comprehensive support for writing, compiling, and debugging code.
- Freedom Development Platforms and evaluation boards available for rapid prototyping and testing.
In summary, the S9S12GN32AVFT is a versatile and powerful microcontroller designed for automotive and industrial control applications. With its rich set of peripherals, memory options, and debugging capabilities, it provides an excellent platform for developing embedded systems that require precise control and communication.
