A Comprehensive Guide To S912ZVML12F1MKH Microcontroller IC 16-Bit 50MHz 128KB (128K x 8) FLASH 64-HLQFP (10x10)

S12Z S12 MagniV Microcontroller IC 16-Bit 50MHz 128KB (128K x 8) FLASH 64-HLQFP (10x10)

Introduction

The MC9S12ZVM-Family is an automotive 16-bit microcontroller family using the NVM + UHV

technology that offers the capability to integrate 40 V analog components. This family reuses many

features from the existing S12/S12X portfolio. The particular differentiating features of this family are the

enhanced S12Z core, the combination of dual-ADC synchronized with PWM generation and the

integration of “high-voltage” analog modules, including the voltage regulator (VREG), Gate Drive Unit

(GDU) and a Local Interconnect Network (LIN) physical layer. These features enable a fully integrated

single chip solution to drive up to 6 external power MOSFETs for BLDC or PMSM motor drive

applications.

The MC9S12ZVM-Family includes error correction code (ECC) on RAM and 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 MC9S12ZVM-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 MC9S12ZVM-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 existing S12(X) families. The

MC9S12ZVM-Family is available in different pin-out options, using the 64-pin LQFP-EP and 48-pin

LQFP-EP packages to accommodate LIN, CAN and external PWM based application interfaces. 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 MC9S12ZVM-Family is a general-purpose family of devices suitable for a range of applications,

including:

• 3-phase sensorless BLDC motor control for

— Fuel pump

— Water pump

— Oil pump

— A/C compressor

— HVAC blower

— Engine cooling fan

— Electric vehicle battery cooling fan

• Brush DC motor control requiring driving in 2 directions, along with PWM control for

— Reversible wiper

— Trunk opener

Chip-Level Features

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

• S12Z CPU core

• 128, 64, 32 or 16KB on-chip flash with ECC

• 512 or128 byte EEPROM with ECC

• 8, 4 or 2 KB on-chip SRAM with ECC

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

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

• 4-20MHz amplitude controlled pierce oscillator

• Internal COP (watchdog) module

• 6-channel, 15-bit pulse width modulator with fault protection (PMF)

• Low side and high side FET pre-drivers for each phase

— Gate drive pre-regulator

— LDO (Low Dropout Voltage Regulator) (typically 11V)

— High side gate supply generated using bootstrap circuit with external diode and capacitor

— Sustaining charge pump with two external capacitors and diodes

— High side drain (HD) monitoring on internal ADC channel using HD/5 voltage

• Two parallel analog-to-digital converters (ADC) with 12-bit resolution and up to 9 channels

available on external pins

• Programmable Trigger Unit (PTU) for synchronization of PMF and ADC

• One serial peripheral interface (SPI) module

• One serial communication interface (SCI) module with interface to internal LIN physical layer

transceiver (with RX connected to a timer channel for frequency calibration purposes, if desired)

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

• On-chip LIN physical layer transceiver fully compliant with the LIN 2.2 standard

(S12ZVML versions)

• One High Voltage physical interface. (S12ZVM32, S12ZVM16 versions only)

• 4-channel timer module (TIM) with input capture/output compare

• MSCAN (1 Mbit/s, CAN 2.0 A, B software compatible) module

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

— Optional VREG ballast control output to supply an external CAN physical layer

• Two current sense circuits for overcurrent detection or torque measurement

• Autonomous periodic interrupt (API)

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

• Supply voltage sense with low battery warning

• Chip temperature sensor