The MC9S12XD256CAL is a 16-bit Microcontroller based on enhanced HCS12X CPU (40MHz bus) with CISC architecture operates at a maximum frequency of 80MHz. The device incorporates 256kB internal flash, 14kB internal RAM, 4kB EEPROM, 16-channel 10-bit A/D converter and 91 general-purpose I/O pins. This device also features peripherals like one inter-integrated circuit (IIC) bus module, three multi-scalable controller area networks (MSCAN) CAN 2.0 A/B software compatible modules, four serial communications interface (SCI) and three serial peripheral interface modules (SPI). The MC9S12XD family features the performance boosting XGATE co-processor. The XGATE, which is programmable in C language, has an instruction set which is optimized for data movement, logic and bit manipulation instructions. It runs at twice the bus frequency of the S12X and off-loads the CPU by providing high speed data transfer between any peripheral module, RAM and I/O ports.
● Upward compatible with MC9S12 instruction set
● Interrupt stacking and programmer"s model identical to MC9S12
● Instruction queue
● Enhanced indexed addressing
● Enhanced instruction set
● External bus interface (EBI)
● Module mapping control (MMC)
● Interrupt controller (INT)
● Debug module to monitor HCS12X CPU and XGATE bus activity
● Background debug mode (BDM)
● Periodic interrupt timer (PIT)
● Clock and reset generator (CRG)
● Low noise/low power Pierce oscillator
● Enhanced capture timer - 16-bit main counter with 7-bit prescaler
● 8 PWM (pulse-width modulator) channels
● On-chip voltage regulator
● Low-voltage detect (LVD) with low-voltage interrupt (LVI)
● Power-on reset (POR) circuit
● Low-voltage reset (LVR)
● Ultra low-power wake-up timer
