Sunday, November 30, 2008

Tutorial 3 - About the Motorola MC 68HC11

  • The 68HC11 is a powerful 8-bit data.
  • 16-bit address microcontroller from Motorola (Now Freescale) with an instruction set that is similar to the older 68xx (6801, 6805, 6809) parts.
  • Depending on the variety, the 68HC11 has built-in EEPROM/OTPROM, RAM, digital I/O, timers, A/D converter, PWM generator, and synchronous and asynchronous communications channels (RS232 and SPI).
  • Typical current draw is less than 10mA.
  • Optimized for low power consumption and high-performance operation at bus frequencies up to 4 MHz.
  • The CPU has two 8 bit accumulators (A & B) that can be concatenated to provide a 16 bit double accumulator (D).
  • Two 16 bit index registers are present (X & Y) to provide indexing to anywhere in the memory map.
  • Having the two index registers means the 68HC11 is very good for processing data.
Details can be found HERE

2 comments:

blog404 said...

hi..I'm currently doing my final year project and using motorola micro-c 68hc11..my project is something like to control air-conditioner using fuzzy logic..so, I want to ask your opinion, what is the best solution for my hardware..using bootstrap mode or expanded mode? Is it depends on how long my software is?

Winfred said...

This blogpost will sure help the engineering students..informative post..

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