NXP MCF51AC128CCFUE, 32bit ColdFire Microcontroller, MCF51AC, 50MHz, 128 KB Flash, 64-Pin QFP

The Microcontroller has 32 bit Version 1 ColdFire central processor unit. On chip trace buffer provides programmable start/stop recording conditions plus support for continuous or PC-profiling modes. Peripheral clock enable register can disable clocks to unused modules, reducing currents and allows clocks to remain enabled to specific peripherals in stop3 mode.

Standard and extended data frames
Zero to eight bytes data length
Programmable bit rate up to 1 Mbps
Support for remote frames
Multipurpose clock generator