MC9S12XHZ256CAG  Description

Targeted at automotive instrumentation applications, 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-sizeefficiency advantages currently associated with the MC9S12 products.

MC9S12XHZ256CAG  Features

HCS12X Core

— 16-bit HCS12X CPU

– Upward compatible with MC9S12 instruction set

– Interrupt stacking and programmer’s model identical to MC9S12

– Instruction queue

– Enhanced indexed addressing

– Enhanced instruction set

— EBI (external bus interface)

— MMC (module mapping control)

— INT (interrupt controller)

— DBG (debug module to monitor HCS12X CPU and XGATE bus activity)

— BDM (background debug mode)

XGATE (peripheral coprocessor)

— Parallel processing module off loads the CPU by providing high-speed data processing and

transfer

— Data transfer between Flash EEPROM, RAM, peripheral modules, and I/O ports

Memory

– 512K, 384K, 256K byte Flash EEPROM

– 4K byte EEPROM

– 32K, 28K, 16K byte RAM

CRG (clock and reset generator)

— Low noise/low power Pierce oscillator

— PLL

— COP watchdog

— Real time interrupt

— Clock monitor

— Fast wake-up from stop mode

Analog-to-digital converter

— 16 channels, 10-bit resolution

— External conversion trigger capability

ECT (enhanced capture timer)

— 16-bit main counter with 8-bit prescaler

— 8 programmable input capture or output compare channels

— Four 8-bit or two 16-bit pulse accumulators

PIT (periodic interrupt timer)

— Four timers with independent time-out periods

— Time-out periods selectable between 1 and 224 bus clock cycles