Feature Detail
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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
Serial interfaces
– Up to two asynchronous Serial Communications Interfaces (SCI)
– Synchronous Serial Peripheral Interface (SPI)
– Inter-IC Bus Interface (IIC)
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
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
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.
Operating Frequency
– 32Mhz equivalent to 16Mhz Bus Speed (Only 9S12H256)
– 50Mhz equivalent to 25Mhz Bus Speed (Except 9S12H256)
80-Pin, 112-Pin or 144-Pin QFP package
– I/O lines with 5V input and drive capability
– 5V A/D converter inputs
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16-bit Microcontroller HCS12H Family, Rev. 11.1
Freescale Semiconductor
PRELIMINARY
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FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
