Introduction
The MC68CK338, a highly-integrated 32-bit microcontroller, combines high-performance data manipulation capabilities with powerful peripheral subsystems. The MCU is built up from standard modules that interface through a common intermodule bus (IMB). Standardization facilitates rapid development of devices tailored for specific applications.

Features
• Modular Architecture
• Low-Power Central Processing Unit (CPU32L)
    — Virtual memory implementation
    — Loop mode of instruction execution
    — Improved exception handling for controller applications
    — Table lookup and interpolate instruction
    — CPU-only LPSTOP operation/normal MCU LPSTOP operation
• Low-Power System Integration Module (SIML)
    — External bus support
    — Twelve programmable chip-select outputs
    — System protection logic
    — On-chip PLL for system clock
    — Watchdog timer, clock monitor, and bus monitor
    — Expanded LPSTOP operation
• Queued Serial Module (QSM)
    — Enhanced serial communication interface (SCI)
    — Queued serial peripheral interface (QSPI)
    — Dual function I/O ports
• Configurable Timer Module 6 (CTM6)
    — One bus interface unit submodule (BIUSM)
    — One counter prescaler submodule (CPSM)
    — Three modulus counter submodules (MCSM)
    — One free-running counter submodule (FCSM)
    — Eleven double action submodules (DASM)
    — Four (eight channels) single action submodules (SASM)
    — One real time clock submodule (RTCSM)
    — One port I/O submodule (PIOSM)
    — Two 32-byte RAM submodules (RAMSM)