The 9S12XDP512 MCU provides significant performance improvements over the existing 9S12 family through a combination of increased clock speed and enhanced functionality.• 40MHz operation • 80MHz XGATE peripheral coprocessor • Extended CPU instruction set • Programmable eight level interrupt controller • Enhanced Memory Management Controller • New four channel Periodic Interrupt Timer • Improved Enhanced Capture Timer with modulus prescaler options • Non-multiplexed 8MB expanded memory bus • New low-power RC trigger and fast recovery from STOP modes • Decimal prescaler for Real Time Interrupt module • Improved SCI featuring hardware bit manipulation for LIN • Enhanced trigger source options for Analog to Digital Converters • Amplitude controlled Pierce oscillator • Wider and deeper debug module