A Comprehensive Guide To S9S12VR48AF0CLF Microcontroller IC 16-Bit 25MHz 48KB (48K x 8) FLASH 48-LQFP (7x7)

12V1 S12 MagniV Microcontroller IC 16-Bit 25MHz 48KB (48K x 8) FLASH 48-LQFP (7x7)

Introduction

The MC9S12VR-Family is an optimized automotive 16-bit microcontroller product line focused on

low-cost, high-performance, and low pin-count. This family integrates an S12 microcontroller with a LIN

Physical interface, a 5V regulator system to supply the microcontroller, and analog blocks to control other

elements of the system which operate at vehicle battery level (e.g. relay drivers, high-side driver outputs,

wake up inputs). The MC9S12VR-Family is targeted at generic automotive applications requiring single

node LIN communications. Typical examples of these applications include window lift modules, seat

modules and sun-roof modules to name a few.

The MC9S12VR-Family uses many of the same features found on the MC9S12G family, including error

correction code (ECC) on flash memory, EEPROM for diagnostic or data storage, a fast analog-to-digital

converter (ADC) and a frequency modulated phase locked loop (IPLL) that improves the EMC

performance. The MC9S12VR-Family delivers an optimized solution with the integration of several key

system components into a single device, optimizing system architecture and achieving significant space

savings. The MC9S12VR-Family delivers all the advantages and efficiencies of a 16-bit MCU while

retaining the low cost, power consumption, EMC, and code-size efficiency advantages currently enjoyed

by users of Freescale’s existing 8-bit and 16-bit MCU families. Like the MC9S12XS family, the

MC9S12VR-Family will run 16-bit wide accesses without wait states for all peripherals and memories.

Misaligned single cycle 16 bit RAM access is not supported. The MC9S12VR-Family will be available in

32-pin and 48-pin LQFP. In addition to the I/O ports available in each module, further I/O ports are

available with interrupt capability allowing wake-up from stop or wait modes.

The MC9S12VR-Family is a general-purpose family of devices created with relay based motor control in

mind and is suitable for a range of applications, including:

• Window lift modules

• Door modules

• Seat controllers

• Smart actuators

• Sun roof modules

Chip-Level Features

On-chip modules available within the family include the following features:

• HCS12 CPU core

• 64 or 48 Kbyte on-chip flash with ECC

• 512 byte EEPROM with ECC

• 2 Kbyte on-chip SRAM

• Phase locked loop (IPLL) frequency multiplier with internal filter

• 1 MHz internal RC oscillator with +/-1.3% accuracy over rated temperature range

• 4-20 MHz amplitude controlled pierce oscillator

• Internal COP (watchdog) module (with separate clock source)

• Timer module (TIM) supporting input/output channels that provide a range of 16-bit input capture,

output compare and counter (up to 4 channels)

• Pulse width modulation (PWM) module (up to 8 x 8-bit channels)

• 10-bit resolution successive approximation analog-to-digital converter (ADC) with up to 6

channels available on external pins

• One serial peripheral interface (SPI) module

• One serial communication interface (SCI) module supporting LIN communications (with RX

connected to a timer channel for internal oscillator calibration purposes, if desired)

• Up to one additional SCI (not connected to LIN physical layer)

• One on-chip LIN physical layer transceiver fully compliant with the LIN 2.2 standard & SAE

J2602-2 LIN standard

• On-chip voltage regulator (VREG) for regulation of input supply and all internal voltages

• Autonomous periodic interrupt (API) (combination with cyclic, watchdog)

• Two protected low-side outputs to drive inductive loads

• Up to two protected high-side outputs

• 4 high-voltage inputs with wake-up capability and readable internally on ADC

• Up to two 10mA high-current outputs

• 20mA high-current output for use as Hall sensor supply

• Battery voltage sense with low battery warning, internally reverse battery protected

• Chip temperature sensor