The MC9S12XS128MAA is a 16-bit Microcontroller based on enhanced HCS12X CPU with CISC architecture operates at a maximum frequency of 40MHz. The device incorporates 128kB internal flash, 8kB internal RAM, 8kB EEPROM, 8-channel 12-bit A/D converter and 59 general-purpose I/O pins. This device also features peripherals like one multi-scalable controller area networks (MSCAN) CAN 2.0 A/B software compatible module, two serial communications interface (SCI) and one serial peripheral interface modules (SPI). The MC9S12XS family retains many of the features of the S12XE family including error correction code (ECC) on flash memory, a separate data flash module for code or data storage, a frequency modulated locked loop (IPLL) that improves the EMC performance and a fast A/D converter.
Upward compatible with S12 instruction set
Enhanced indexed addressing
Access to large data segments independent of PPAGE
Interrupt module (INT)
Module mapping control (MMC)
Debug module
Background debug mode (BDM)
Low power loop control pierce oscillator utilizing a 4MHz to 16MHz crystal
Internally filtered, frequency modulated phase-locked-loop clock generation (IPLL)
Clock and reset generation (CRG)
COP watchdog
Real time interrupt
Clock monitor
Fast wake up from STOP in self clock mode
Standard timer module (TIM) - 8 x 16-bit channels for input capture or output compare
On-chip voltage regulator
Two parallel, linear voltage regulators with bandgap reference
Low-voltage detect (LVD) with low-voltage interrupt (LVI)