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ColdFire V1 Processor (70008)

Flexis™ family controllers from Freescale Semiconductor, the world’s leading provider of 32-bit embedded controllers, provide the link between 8-bit ease-of-use and 32-bit performance. Freescale’s pair of pin-compatible controllers—the 8-bit S08QE128 and 32-bit V1 ColdFire based MCF51QE128—are the industry’s first fully compatible 8-bit and 32-bit architectures, sharing a common set of peripherals and development tools.

Fully compatible with the V2, V3, and V4 ColdFire architectures as well as the 8-bit S08 architecture, V1 ColdFire provides an entry point to the popular 32-bit ColdFire processor continuum.

The V1 ColdFire Core offers a low-cost entry point to the ColdFire roadmap. A simplified version of the V2 ColdFire architecture, the V1 ColdFire Core is a low-power, low-gate-count implementation with a single-wire debug interface. Integration cost is minimized through simple interfaces to on-chip logic: unified instruction/data bus, interrupt, clock, and reset.

Debug support including real-time trace (RTT) and real-time debug (RTD) is through a single-wire background debug module (BDM) interface. The debug unit includes an embedded trace buffer with data compression for efficient storage and transfer of trace data.

A separate debug clock enables shut-down of debug logic when not in use.

The V1 ColdFire instruction set includes special MAC/DIV instructions executed in dedicated MAC/DIV hardware, features improved handling of byte (8-bit) and word (16-bit) operands, and offers upward compatibility with other ColdFire cores such as the V2.