Feature Detail

16-bit Microcontroller HCS12H Family, Rev. 11.1

Freescale Semiconductor

3

PRELIMINARY

– Programmable period and duty cycle for each channel

– Pairs of 8-bit channels can be concatenated as one 16-bit channel

– Center-aligned or left-aligned outputs

– Wide range of programmable clock frequencies

– Fast emergency shutdown input

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Serial interfaces

– Up to two asynchronous Serial Communications Interfaces (SCI)

– Synchronous Serial Peripheral Interface (SPI)

– Inter-IC Bus Interface (IIC)

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Liquid Crystal Display (LCD) driver

– Up to 32 frontplanes and 4 backplanes

– 5 modes of operation allow for different display sizes to meet application requirements

– Programmable frame clock generator and bias voltage level

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16 or 24 high current drivers suited for PWM motor control

– Each PWM channel switchable between two drivers in an H-bridge configuration

– Support for sine and cosine drive

– 11-bit resolution with selectable dithering function

– Left, right or center aligned outputs

– Slew rate control

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Up to four Stepper Stall Detectors (SSD) - available on selected devices

– Flexible full step and polarity set up to return the pointer to its reset position in clockwise or

counter clockwise direction.

– Integrator/Sigma Delta converter circuit to measure the induced voltage by the back EMF of

unpowered coil during full step (only one of the two motor coils is powered) operation.

– 16-Bit Down Counter to monitor blanking and integration time to support stepper motors with

different gear ratios.

– 16-Bit accumulator register to read integration value, compare to a threshold at the end of

integration time, and decide if the motor is stalled under this value or moving above this value.

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Operating Frequency

– 32Mhz equivalent to 16Mhz Bus Speed (Only 9S12H256)

– 50Mhz equivalent to 25Mhz Bus Speed (Except 9S12H256)

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80-Pin, 112-Pin or 144-Pin QFP package

– I/O lines with 5V input and drive capability

– 5V A/D converter inputs