The MC912XHZ family of microcontrollers is a fully pin-compatible extension to the existing MC9S12HZ family. It offers not only a larger memory but also incorporates all the architectural benefits of the new S12X-based family to deliver significantly higher performance. The MC9S12XHZ family retains the low cost, power consumption, EMC and code-size efficiency advantages currently associated with the MC9S12 products. The MC912XHZ family features the performance boosting XGATE co-processor. The XGATE is programmable in "C" language and runs at twice the bus frequency of the S12. Its instruction set is optimized for data movement, logic and bit manipulation instructions. Any peripheral module can be serviced by the XGATE.XGATE (peripheral coprocessor)MemoryMemoryCRG (clock and reset generator)Analog-to-digital converterECT (enhanced capture timer)PIT (periodic interrupt timer)Two 1-Mbps, CAN 2.0 A, B software compatible modulesTwo IIC (Inter-IC bus) ModulesSerial interfacesLiquid crystal display (LCD) driver with variable input voltagePWM motor controller (MC) with 24 high current driversSix stepper stall detectors (SSD)On-Chip Voltage Regulator144-pin LQFP and 112-pin LQFP packagesOperation at 80 MHz equivalent to 40-MHz bus speedDevelopment support