Page 275 - Introduction to Microcontrollers Architecture, Programming, and Interfacing of The Motorola 68HC12

252 Chapter 8 Programming in C and C++

A memory expansion card, Adapt812 MX1, plugs onto the rear of Adapt 812, offering the
user up to 512K of Flash and 512K of SRAM. A real-time clock/calendar and battery back-
up for the SRAM is included, as well as a prototyping area for the user's own application
circuitry. A versatile dual-slot backplane/adapter couples the memory card to the micro-
controller card so that the entire assembly can be plugged into a solderless breadboard.