MC9S12C Product Brief
This document provides a thorough overview of the 9S12C microcontroller used on NanoCore12 modules.
9S12C Microcontroller Device Guide
This document provides complete hardware details specific to the 9S12C microcontroller family.
CPU12 Reference Manual
This document provides all the details of the CPU architecture, addressing modes, and instruction set.
MC9S12C Webpage
The Freescale website provides detailed data sheets, many Application Notes, code examples, and utilities relevant to the 9S12C microcontroller.