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Motorola 68HC11 series is a family of micro controllers , each device contains slightly different functional blocks , however they are all based around the same microprocessor namely the 6801 8-bit processor , therefore basic 6800/1 machine code will function on any of the devices in the range , what is different is the I/O features. The target system provided with these notes is the 'GBC11' which contains a 68HC11F1N4 device. This is a fairly advanced member of the HC11 range and has the following features
* MC68HC11 Cpu * 512 Bytes Electrically Erasable PROM with protection * 1024 Bytes of on board RAM * Enhanced 16 Bit timer * On board chip selects for expansion * Real time Interrupt circuit * 8 Bit Accumulator * Synchronous Serial Peripheral Interface * Asynchronous Serial communications Interface * Power saving Modes * 8 Channel 8 bit A/D converter * Watchdog and clock monitor
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