MC9S12H256 Datasheet, PDF (19/130 Pages) Motorola, Inc – Device User Guide

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– Inter-Integrated Circuit interface (IIC)
• Liquid Crystal Display driver with variable input voltage
– Configurable for up to 32 frontplanes and 4 backplanes or general purpose input or output
– 5 modes of operation allow for different display sizes to meet application requirements
– Unused frontplane and backplane pins can be used as general purpose I/O
• 16, 24 high current drivers suited for PWM motor control
– Each PWM channel switchable between two drivers in an H-bridge configuration
– Left, right and center aligned outputs
– Support for sine and cosine drive
– Dithering
– Output slew rate control
• 144-Pin or 112-Pin LQFP package
– I/O lines with 5V input and drive capability
– 5V A/D converter inputs
– Operation at 32MHz equivalent to 16MHz Bus Speed
– Development support
– Single-wire background debug™ mode (BDM)
– On-chip hardware breakpoints
1.3 Modes of Operation
User modes
• Normal and Emulation Operating Modes
– Normal Single-Chip Mode
– Normal Expanded Wide Mode
– Normal Expanded Narrow Mode
– Emulation Expanded Wide Mode
– Emulation Expanded Narrow Mode
• Special Operating Modes
– Special Single-Chip Mode with active Background Debug Mode
– Special Test Mode (Motorola Use Only
– Special Peripheral Mode (
Low power modes
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