MC9S08SH8CWJ Description
The MC9S08SH8 members of the low-cost, high-performance HCS08 Family of 8-bit microcontrollerunits (MCUs). All MCUs in the family use the enhanced HCS08 core and are available with a variety ofmodules, memory sizes, memory types, and package types.
MC9S08SH8CWJ 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.
MC9S08SH8CWJ Features
? Active background mode for code development
? Wait mode — CPU shuts down to conserve power; system clocks are running and full regulation
is maintained
? Stop modes — System clocks are stopped and voltage regulator is in standby
— Stop3 — All internal circuits are powered for fast recovery
— Stop2 — Partial power down of internal circuits, RAM content is retained
