Device Overview The MC9S08SH8 members of the low-cost, high-performance HCS08 Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the enhanced HCS08 core and are available with a variety of modules, memory sizes, memory types, and package types. MC9S08SH8 Features 8-Bit HCS08 Central Processor Unit (CPU) • 40-MHz HCS08 CPU (central processor unit) • HC08 instruction set with added BGND instruction • Support for up to 32 interrupt/reset sources On-Chip Memory • FLASH read/program/erase over full operating voltage and temperature • Random-access memory (RAM) Power-Saving Modes • Two very low power stop modes • Reduced power wait mode • Very low power real time interrupt for use in run, wait, and stop Clock Source Options • Oscillator (XOSC) — Loop-control Pierce oscillator; Crystal or ceramic resonator range of 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz • Internal Clock Source (ICS) — Internal clock source module containing a frequency-locked loop (FLL) controlled by internal or external reference; precision trimming of internal reference allows 0.2% resolution and 2% deviation over temperature and voltage; supports bus frequencies from 2 MHz to 20 MHz. System Protection • Watchdog computer operating properly (COP) reset with opti/n to run from dedicated 1-kHz internal clock source or bus clock • Low-voltage detection with reset or interrupt; selectable trip points • Illegal opcode detection with reset • Illegal address detection with reset • FLASH block protect Development Support • Single-wire background debug interface • Breakpoint capability to allow single breakpoint setting during in-circuit debugging (pluss two more breakpoints in on-chip debug module) • On-chip, in-circuit emulation (ICE) debug module containing two comparators and nine trigger modes. Eight deep FIFO for storing change-of-flow address and event-only data. Debug module supports both tag and force breakpoints. (Continue ...)
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